{
  "schema": "cad-agent-references/1",
  "built": "2026-11-04T22:52:31-08:00",
  "revision": "3a4ec137a2a7cf52fa6072b5bc81b7e320d49701",
  "area": {
    "slug": "cnc-machining",
    "title": "CNC machining",
    "domain": "manufacturing",
    "scope": "Milled and turned parts."
  },
  "fields": {
    "status": "`source`: read, with a dated `verified` note, and may be cited. `catalogued`: listed from a survey and not yet read; never cite one",
    "kind": "what the source is (research/references/vocab.yaml `kind`); a read source from before schema 2 has none",
    "evidence_class": "its rung on the evidence ladder, lowest first: snippet-only, read, verified-at-source, encoded, measured",
    "confidence": "#143: {level, estimate, sources}, derived from the evidence; `unknown` when the record has no evidence block",
    "licence": "{spdx, class, read, note}: `read: false` means the licence text was not read, only stated by the survey",
    "placed": "the docs/areas.yaml areas the record is listed in (`unplaced` when its areas match none)",
    "placed_note": "its row on the site, which [ref:<id>] in any page links to, is /references/<first placed area>#<id>",
    "vocab": "every coded value is explained in research/references/vocab.yaml"
  },
  "index": "https://cad-agent.valpatel.com/catalog/references/index.json",
  "count": 44,
  "coverage": [
    {
      "id": "ca-10-cnc-internal-corner-radius-pocket-depth",
      "number": "10",
      "topic": "CNC: internal corner radius, pocket depth, tool access",
      "status": "partly",
      "areas": [
        "cnc-machining"
      ],
      "where": "profile:4442 cnc-corner-radius-hubs, :4514 cnc-cavity-depth-hubs, :4570 cnc-tool-reach-*; review/gates/fasteners.py:297 tool_envelope (screwdriver access only)",
      "defaults": "Corner radius depth/3 or 1.3 D/2 (>=0.8 mm); pocket depth 3-4 x width (2 D tool); reach Al 10 D, plastic 15 D, steel 5 D; thread length 1.5-3 D",
      "sources": "Hubs, Xometry, Fictiv, DFMA, Harvey Tool, Protolabs",
      "gap": "Rules in YAML only; dfm.check has no corner, pocket or tool-reach kinds and no geometry measurement; no 3-axis access/undercut analysis, thin-wall or tapped-hole depth checks.",
      "draft_issue": {
        "title": "Add CNC kinds to dfm.check and a tool-access analysis",
        "body": "CNC corner, pocket-depth and tool-reach rules are in the profile but unreachable from dfm.check. Add kinds with D/width inputs, then a geometry gate for internal radii and deep pockets from the STEP (Hubs, Xometry, Fictiv).",
        "posted": false
      },
      "placed": [
        "cnc-machining"
      ]
    }
  ],
  "records": [
    {"id":"xometry-cnc-corner-radii","title":"CNC Machining Design Tip: Optimizing Internal Corner Radii","authors":["Dean McClements","Aaron Lichtig"],"org":"Xometry","year":2020,"url":"https://www.xometry.com/resources/machining/cnc-machining-optimizing-internal-corner-radii/","access":"free","terms":"cited and summarised, never copied","areas":["cnc","cnc-machining"],"used_for":["research/process-profiles.md","research/process-profiles.yaml"],"verified":"2026-10-31: the live page answers scripts with HTTP 429, so read the Internet Archive copy of 2026-03-07 (web.archive.org/web/20260307153318/…). Byline \"Written by Dean McClements, Updated by Aaron Lichtig\"; published 2020-09-29, updated 2024-08-13. Read the 0.02–0.05 in added to the tool radius.","status":"source","kind":"guide","category":"manufacturing-guides","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Explains non-standard inside radius can help because the end mill needs clearance to turn in the corner.","imported":"b2ce1e9d9e3bc236","evidence_class":"read","placed":["cnc-machining"],"source_file":"research/references.yaml","extended_in":"research/references/guides-cnc.yaml"},
    {"id":"protolabs-cnc-milling","title":"Design Guidelines: CNC Milling","authors":[],"org":"Protolabs","year":null,"url":"https://www.protolabs.com/services/cnc-machining/cnc-milling/design-guidelines/","access":"free","terms":"cited and summarised, never copied","areas":["cnc","cnc-machining"],"used_for":["research/process-profiles.md","research/process-profiles.yaml"],"verified":"2026-10-31: opened the page; read size limits (2 in milled depth per side), the tolerance (±0.005 in, and ISO 2768-1 medium or fine), feature and nominal thickness, threads (M2–M12) and text.","status":"source","kind":"guide","category":"manufacturing-guides","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Walls thinner than 0.020 in (0.5 mm) typically do not survive machining.","status":"unconfirmed","evidence":"No second source checked. As the map saw it: Detail table not seen in snippet"}],"summary":"Protolabs milling limits page; snippets show min wall and standard tolerance of automated factory.","imported":"493b88cef5e406a9","evidence_class":"read","placed":["cnc-machining"],"source_file":"research/references.yaml","extended_in":"research/references/guides-cnc.yaml"},
    {"id":"protolabs-cnc-turning","title":"Design Guidelines: CNC Turning","authors":[],"org":"Protolabs","year":null,"url":"https://www.protolabs.com/services/cnc-machining/cnc-turning/design-guidelines/","access":"free","terms":"cited and summarised, never copied","areas":["cnc","cnc-machining"],"used_for":["research/process-profiles.md","research/process-profiles.yaml"],"verified":"2026-10-31: opened the page; read the smallest diameter (0.030 in), wall thickness (0.020 in) and hole sizes.","status":"source","kind":"guide","category":"manufacturing-guides","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"processes":["cnc-turn"],"process_groups":["cnc"],"evidence":{"numbers":"claimed","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Max OD groove depth 0.95 in (24.1 mm); min groove width 0.019 in.","status":"unconfirmed","evidence":"No second source checked. As the map saw it: Limits are Protolabs-specific"}],"summary":"Turning limits: groove width/depth, minimum diameter and length, ID grooves unsupported.","imported":"03dd499707ae1407","evidence_class":"read","placed":["cnc-machining"],"source_file":"research/references.yaml","extended_in":"research/references/guides-cnc.yaml"},
    {"id":"protolabs-guidelines-for-threaded-holes-in-cnc-machining","kind":"guide","category":"manufacturing-guides","title":"Guidelines for Threaded Holes in CNC Machining","authors":[],"org":"Protolabs","year":null,"url":"https://protolabs.com/en-gb/services/cnc-machining/threaded-holes-guidelines","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining","threaded-inserts"],"processes":["cnc-mill","inserts"],"process_groups":["cnc","inserts"],"evidence":{"class":"read","numbers":"claimed","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"verified":"2026-11-04: opened the page (it redirects to the en-gb services page); read the thread tables: UNC and UNF from #2-56 to 1/2-13, metric coarse and fine from M2 to M12, with their depths.","claims":[{"text":"Threads offered UNC/UNF #2 to 1/2 in and metric M2 to M12","status":"unconfirmed","evidence":"2026-11-04: the page's tables run that range. No second source checked."}],"summary":"Protolabs' CNC thread tables: UNC and UNF from #2-56 to 1/2-13 and metric coarse and fine from M2 to M12, each with its thread depth.","used_for":[],"status":"source","evidence_class":"read","placed":["cnc-machining","fasteners-and-hardware"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"albany-county-fasteners-helicoil-install-guide-albany-county","kind":"guide","category":"manufacturing-guides","title":"Helicoil install guide (Albany County Fasteners)","authors":[],"org":"Albany County Fasteners","year":null,"url":"https://www.albanycountyfasteners.com/media/cf/c2/cc/1764619189/insert-installation-guide.pdf","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["fasteners","cnc-machining"],"processes":["fasteners","cnc-mill"],"process_groups":["inserts","cnc"],"evidence":{"class":"read","numbers":"some","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"verified":"2026-11-04: opened the PDF; read the install steps per insert type (drill, STI tap, install, break the tang) and the seating depth.","claims":[{"text":"Seat the coil 1/4 to 1/2 turn below the surface; an STI tap, not a standard tap","status":"unconfirmed","evidence":"2026-11-04: read in the PDF. No second source checked."}],"summary":"Helical coil insert installation by insert type: drill, tap with an STI tap (not a standard one), install, break the tang, and seat the coil 1/4 to 1/2 turn below the surface.","used_for":[],"status":"source","evidence_class":"read","placed":["fasteners-and-hardware","cnc-machining"],"source_file":"research/references/guides-inserts.yaml"},
    {"id":"hubs-cnc-design","title":"How to design parts for CNC machining","authors":[],"org":"Protolabs Network (formerly Hubs)","year":null,"url":"https://www.hubs.com/knowledge-base/how-design-parts-cnc-machining/","access":"free","terms":"cited and summarised, never copied","areas":["cnc","cnc-machining"],"used_for":["research/process-profiles.md","research/process-profiles.yaml"],"verified":"2026-10-31: opened the page; read the table of recommended and feasible values (cavities, internal edges, floor radii, walls, holes, threads, small features, tolerances, text) and the undercut section.","status":"source","kind":"guide","category":"manufacturing-guides","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"numbers":"claimed","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Min wall 0.8 mm metals, 1.5 mm plastics (feasible 0.5 and 1.0 mm).","status":"corroborated","evidence":"Richconn, Wevolver/Xometry-style guides: metals 0.8 mm (0.794), plastics 1.5 mm; Core77 feasible 1.0 mm plastics, 0.5 mm metals. Matches stated feasible values. As the map saw it: Hole and thread numbers came from companion tips article summary"}],"summary":"Hubs recommended and feasible limits for walls, holes and threads, per search summary.","imported":"28b8d71d444a861f","evidence_class":"read","placed":["cnc-machining"],"source_file":"research/references.yaml","extended_in":"research/references/guides-cnc.yaml"},
    {"id":"xometry-cnc-10-tips","title":"Video: 10 Tips to Improve Your CAD Designs for CNC Machining","authors":["Joel Schadegg","Greg Paulsen"],"org":"Xometry","year":2022,"url":"https://www.xometry.com/resources/machining/10-tips-improve-cad-cnc-design/","access":"free","terms":"cited and summarised, never copied","areas":["cnc","cnc-machining"],"used_for":["research/process-profiles.md","research/process-profiles.yaml"],"verified":"2026-10-31: the live page answers scripts with HTTP 429, so read the Internet Archive copy of 2026-05-15 (web.archive.org/web/20260515023712/…). Byline \"Written by Joel Schadegg, Updated by Greg Paulsen\"; published 2022-11-15, updated 2026-02-27. Read the tips on walls, cavities, radii, holes and threads.","status":"source","kind":"guide","category":"manufacturing-guides","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Standard minimum wall 0.794 mm metals, 1.5 mm plastics.","status":"corroborated","evidence":"Wevolver, Richconn say metals 0.8 mm (0.794 mm/0.031 in), plastics 1.5 mm; some mirror Xometry's number. Outliers: RapidDirect 0.15 mm plastics. As the map saw it: Wall figure seen on Xometry-branded pages, not confirmed on this exact URL"}],"summary":"Xometry CAD tips; snippets show min wall and corner radius figures across Xometry pages.","imported":"5e01fb1ae8d90484","evidence_class":"read","placed":["cnc-machining"],"source_file":"research/references.yaml","extended_in":"research/references/guides-cnc.yaml"},
    {"id":"fictiv-5-axis-cnc-machining-fictiv","kind":"guide","category":"manufacturing-guides","title":"5-Axis CNC Machining (Fictiv)","authors":[],"org":"Fictiv","year":null,"url":"https://www.fictiv.com/articles/articles-5-axis-cnc-machining","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Covers 3+2 and simultaneous 5-axis configurations. Note: Snippet only","used_for":[],"imported":"858b8b8ab7b019bc","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"protolabs-6-ways-to-optimize-part-design-for-cnc-machining","kind":"guide","category":"manufacturing-guides","title":"6 Ways to Optimize Part Design for CNC Machining","authors":[],"org":"Protolabs","year":null,"url":"https://www.protolabs.com/resources/design-tips/6-ways-to-optimize-part-design-for-cnc-machining/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Functionally sharp corners to about 1-1/4 in (32 mm) depth with relief radii.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Protolabs tips on pocket depth with relief radii, tool access and wall stiffness. Note: Figures vary between regional pages","used_for":[],"imported":"3bdc85653df9a528","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"sfs-standards-store-asme-y14-5-2018-dimensioning-and","kind":"standard","category":"manufacturing-guides","title":"ASME Y14.5-2018 dimensioning and tolerancing","authors":[],"org":"SFS standards store","year":null,"url":"https://store.sfs.fi/en/asme-y145-2018","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["design-process","cnc-machining"],"processes":["general","cnc-mill"],"process_groups":["general","cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"US GD&T standard covering datums, form, orientation, position, profile and runout. Note: Store listing; full text paid","used_for":[],"imported":"626a2f60894481d2","status":"catalogued","evidence_class":"snippet-only","placed":["design-process","cnc-machining"],"source_file":"research/references/guides-general.yaml"},
    {"id":"misumi-best-practice-tips-for-correct-tolerancing-meviy","kind":"guide","category":"manufacturing-guides","title":"Best Practice Tips for Correct Tolerancing (meviy)","authors":[],"org":"Misumi (meviy)","year":null,"url":"https://www.advancedmanufacturing.org/news-desk/meviy-publishes-best-practices-on-correct-tolerancing/article_c0a00c29-7a68-4900-b0d7-949df74576c1.html","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"unknown","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"News coverage of Misumi meviy tolerancing guide: how tolerance affects fit, cost, lead time. Note: Secondary news coverage; guide text not seen","used_for":[],"imported":"acc65d122bf1c192","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"fictiv-cnc-design-guide-fictiv-ebook","kind":"guide","category":"manufacturing-guides","title":"CNC Design Guide (Fictiv ebook)","authors":[],"org":"Fictiv","year":null,"url":"https://blog.fictiv.com/ebooks/cnc-design-guide","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"unknown","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Gated ebook on sizes and shapes to avoid and drilling, milling, turning quality. Note: Gated; body not seen","used_for":[],"imported":"f61954a9b1a2b7e4","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"protolabs-cnc-hole-design-through-blind-tapped-and-more","kind":"guide","category":"manufacturing-guides","title":"CNC hole design: through, blind, tapped and more","authors":[],"org":"Protolabs","year":null,"url":"https://www.protolabs.com/en-gb/resources/blog/cnc-hole-design-through-blind-tapped-and-more/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Holes deeper than six diameters are challenging; may need machining from both sides.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Hole design blog; snippet shows depth limit tied to end mill length. Note: Snippet only","used_for":[],"imported":"b82eb0a468475791","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"boen-rapid-cnc-machining-aluminum-6061-vs-7075-guide","kind":"guide","category":"manufacturing-guides","title":"CNC Machining Aluminum 6061 vs 7075 guide","authors":[],"org":"Boen Rapid","year":null,"url":"https://blog.boenrapid.com/cnc-machining-aluminum-6061-vs-7075-material-selection-guide-for-engineers","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"aggregator"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"6061 vs 7075: 6061 default; 7075 stronger, costlier, wears tools faster. Note: Vendor blog; unverified figures","used_for":[],"imported":"8ffbdbd6255299c3","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"xometry-cnc-machining-cost-reduction","kind":"guide","category":"manufacturing-guides","title":"CNC Machining Cost Reduction","authors":[],"org":"Xometry","year":null,"url":"https://www.xometry.com/resources/machining/cnc-machining-cost-reduction/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Inside corner radius L:D ratio of 3:1 or less; keep radii uniform.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Cost-reduction advice including inside corner radius guidance and tolerance restraint. Note: Snippet only","used_for":[],"imported":"22fc4ac42db0c97a","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"modus-advanced-cnc-machining-design-guidelines-why-your-cad","kind":"guide","category":"manufacturing-guides","title":"CNC machining design guidelines: why your CAD model costs 10x more","authors":[],"org":"Modus Advanced","year":null,"url":"https://www.modusadvanced.com/resources/blog/cnc-machining-design-guidelines-why-your-beautiful-cad-model-costs-10x-more-to-machine","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"unknown","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Title shows cost-driver focus; content not shown in snippet. Note: Title only","used_for":[],"imported":"232ac0b7a9f514f5","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"sendcutsend-cnc-undercuts-why-they-are-expensive","kind":"guide","category":"manufacturing-guides","title":"CNC Undercuts: Why They Are Expensive","authors":[],"org":"SendCutSend","year":null,"url":"https://sendcutsend.com/blog/cnc-undercuts/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Undercuts can drive up cost or make parts unmachinable; design alternatives. Note: Snippet only","used_for":[],"imported":"4e4dce35c7f9d3e2","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"cutting-tool-engineering-cuckoo-for-swiss-machining","kind":"guide","category":"manufacturing-guides","title":"Cuckoo for Swiss machining","authors":[],"org":"Cutting Tool Engineering","year":null,"url":"https://ctemag.com/articles/cuckoo-swiss-machining/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Trade magazine article on Swiss machining; conventional lathe L/D limits about 3:1 without guide bushing. Note: Snippet only","used_for":[],"imported":"48c2f3e761cb9968","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"dassault-systemes-solidworks-deep-pockets-and-slots","kind":"guide","category":"manufacturing-guides","title":"Deep Pockets and Slots (SolidWorks DFMXpress)","authors":[],"org":"Dassault Systemes SolidWorks","year":null,"url":"https://help.solidworks.com/2019/English/SolidWorks/dfmxpress/c_rules_mill_deep_pockets_slots.htm","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"claimed","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"End mill length-to-diameter ratio no greater than 3:1.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"DFM rule for milled pockets and slots tied to end mill length-to-diameter. Note: Snippet only","used_for":[],"imported":"88dffe6469e46cdd","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"xometry-delrin-acetal-cnc-machining","kind":"guide","category":"manufacturing-guides","title":"Delrin (Acetal) CNC Machining","authors":[],"org":"Xometry","year":null,"url":"https://xometry.com/capabilities/cnc-machining-service/acetal","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Avoid wall thickness below 0.060-0.080 in for acetal.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Acetal machining notes: min wall, stock sizes, visible tool marks hidden by bead blasting. Note: Snippet only","used_for":[],"imported":"11df7ee172c89ae4","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"autodesk-design-for-subtractive-manufacture-fusion-cert-prep","kind":"guide","category":"manufacturing-guides","title":"Design for subtractive manufacture (Fusion cert prep)","authors":[],"org":"Autodesk","year":null,"url":"https://www-pt.autodesk.com/learn/ondemand/course/fusion360-design-for-manufacturing-cert-prep/unit/6vDTB2mwPYJItdVaQ6HYOU","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Course unit: parts reachable from top, no overhangs; Accessibility Analysis flags undercuts. Note: Snippet only","used_for":[],"imported":"ce460811a82e0924","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"clarwe-designing-cnc-milled-parts-fillets-wall-thickness","kind":"guide","category":"manufacturing-guides","title":"Designing CNC milled parts: fillets, wall thickness, tool access","authors":[],"org":"Clarwe","year":null,"url":"https://www.clarwe.com/articles/designing-cnc-milled-parts-fillets-wall-thickness-and-tool-access-explained","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"aggregator"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Fillets, wall thickness and tool access explained; fallback if nothing better. Note: Shop blog; snippet title only","used_for":[],"imported":"fa7c89848fa34340","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"misumi-groove-design-for-cnc-turning-meviy","kind":"guide","category":"manufacturing-guides","title":"Groove Design for CNC Turning (meviy)","authors":[],"org":"Misumi (meviy)","year":null,"url":"https://de.meviy.misumi-ec.com/info/en/blog-en-c/news-en-c/30384","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Groove depth-to-width ratio governs chip evacuation; deep narrow grooves clog. Note: Snippet only","used_for":[],"imported":"73210a8b74e4f75d","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"makerverse-guide-to-cnc-machining-tolerances-makerverse","kind":"guide","category":"manufacturing-guides","title":"Guide to CNC Machining Tolerances (Makerverse)","authors":[],"org":"Makerverse","year":null,"url":"https://www.makerverse.com/resources/cnc-machining-guides/guide-to-cnc-machining-tolerances/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Tolerance guide; tighter tolerances cost more regardless. Note: Snippet only","used_for":[],"imported":"b6ae955281fabbce","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"mcmaster-carr-how-to-install-key-locking-inserts","kind":"guide","category":"manufacturing-guides","title":"How to Install Key-Locking Inserts","authors":[],"org":"McMaster-Carr","year":null,"url":"https://www.mcmaster.com/thread-adapting-inserts","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["fasteners","cnc-machining"],"processes":["fasteners","cnc-mill"],"process_groups":["inserts","cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Key-locking insert install notes; tap size can differ from insert thread; comparable to Keensert. Note: Snippet had no figures","used_for":[],"imported":"10df785e1caac2e9","status":"catalogued","evidence_class":"snippet-only","placed":["fasteners-and-hardware","cnc-machining"],"source_file":"research/references/guides-inserts.yaml"},
    {"id":"protolabs-how-to-reduce-cnc-machining-costs-protolabs-design","kind":"guide","category":"manufacturing-guides","title":"How to Reduce CNC Machining Costs (Protolabs design tip)","authors":[],"org":"Protolabs","year":null,"url":"https://www.protolabs.com/en-gb/resources/design-tips/how-to-reduce-cnc-machining-costs/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Cost-reduction tip appearing in corner radius and design results. Note: Specific numbers not visible in snippet","used_for":[],"imported":"60953217aa5682cb","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"xometry-iso-2768-xometry","kind":"guide","category":"manufacturing-guides","title":"ISO 2768 (Xometry)","authors":[],"org":"Xometry","year":null,"url":"https://www.xometry.com/resources/certifications/iso-2768","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining","design-process","sheet-metal"],"processes":["cnc-mill","cnc-turn","general","sheet"],"process_groups":["cnc","general","sheet"],"evidence":{"class":"snippet-only","numbers":"unknown","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Xometry page on ISO 2768 general tolerances; appeared in results, content not shown in snippet. Note: Only title seen; content unconfirmed","used_for":[],"imported":"724377acbf285d17","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining","design-process","sheet-metal"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"wevolver-iso-2768-general-tolerances-tables-classes-status","kind":"guide","category":"manufacturing-guides","title":"ISO 2768 general tolerances: tables, classes, status","authors":[],"org":"Wevolver","year":null,"url":"https://www.wevolver.com/article/iso-2768-general-tolerances-tables-classes-current-status","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining","sheet-metal"],"processes":["cnc-mill","cnc-turn","sheet"],"process_groups":["cnc","sheet"],"evidence":{"class":"snippet-only","numbers":"claimed","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Linear 6-30 mm: fine +/-0.1, medium +/-0.2, coarse +/-0.5 mm (one table).","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Covers ISO 2768 classes f, m, c, v and geometric classes H, K, L. Note: Medium value differs by source","used_for":[],"imported":"9b992d272c56434a","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining","sheet-metal"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"machining-doctor-iso-286-limits-and-fits-h7-g6-machining","kind":"guide","category":"manufacturing-guides","title":"ISO 286 limits and fits: H7/g6 (Machining Doctor)","authors":[],"org":"Machining Doctor","year":null,"url":"https://www.machiningdoctor.com/?p=11834","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining","design-process"],"processes":["cnc-mill","cnc-turn","general"],"process_groups":["cnc","general"],"evidence":{"class":"snippet-only","numbers":"claimed","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Dia 25 H7/g6 clearance 7-41 um; H7/p6 interference about 1-35 um.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"ISO 286 fit explanation: H7/g6 sliding clearance; H7/p6 and r6 interference. Note: Calculator pages; some errors seen across sources","used_for":[],"imported":"46cd8cc42dd60650","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining","design-process"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"modus-advanced-modus-design-features-that-reduce-lead-times","kind":"guide","category":"manufacturing-guides","title":"Modus: Design features that reduce lead times and costs","authors":[],"org":"Modus Advanced","year":null,"url":"https://www.modusadvanced.com/resources/blog/design-features-that-can-reduce-your-lead-times-and-costs-for-machined-parts","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"13 design considerations; e.g. specify edge breaks instead of modeled chamfers. Note: No tolerance-cost numbers in snippet","used_for":[],"imported":"4874222d542c0157","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"sendcutsend-more-axes-more-money-3-axis-vs-3-2-vs-5-axis","kind":"guide","category":"manufacturing-guides","title":"More Axes, More Money: 3-axis vs 3+2 vs 5-axis","authors":[],"org":"SendCutSend","year":null,"url":"https://sendcutsend.com/blog/3-axis-vs-5-axis-cnc-machining/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Compares cost and time of 3, 3+2 and 5-axis machining. Note: Snippet only","used_for":[],"imported":"4a25a1dca80f12f5","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"quickparts-optimising-cnc-machining-design-for-precision-and","kind":"guide","category":"manufacturing-guides","title":"Optimising CNC Machining Design for Precision and Production Efficiency","authors":[],"org":"Quickparts","year":null,"url":"https://quickparts.com/gb/optimising-cnc-machining-design-for-production-efficiency/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Internal radius to pocket depth ratio of 1:8 for structural stability.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Quickparts design guidance including internal radius to pocket depth ratio. Note: Snippet via search summary","used_for":[],"imported":"eabf04f0dd564061","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"nasa-prc-5006-anodize-process-requirements","kind":"standard","category":"manufacturing-guides","title":"PRC-5006 anodize process requirements","authors":[],"org":"NASA","year":null,"url":"https://www.nasa.gov/wp-content/uploads/2023/03/prc-5006-current.pdf","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"NASA anodize process spec; fragmentary snippet on Type III design guidance. Note: Snippet fragmentary","used_for":[],"imported":"568cd1739d68a611","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"hubs-protolabs-network-manufacturing-standards","kind":"guide","category":"manufacturing-guides","title":"Protolabs Network manufacturing standards","authors":[],"org":"Hubs (Protolabs Network)","year":null,"url":"https://hubs.com/manufacturing-standards","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"claimed","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Default as-machined finish Ra 3.2 um (126 uin); sharp edges and burrs removed.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Network default finish and edge-break standards for machined parts. Note: Snippet only","used_for":[],"imported":"693cc4508141d464","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"hubs-reducing-cnc-machining-costs-13-design-tips","kind":"guide","category":"manufacturing-guides","title":"Reducing CNC Machining Costs: 13 Design Tips","authors":[],"org":"Hubs (Protolabs Network)","year":null,"url":"https://www.hubs.com/knowledge-base/reducing-cnc-machining-costs-13-design-tips/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Hole depth about 4x diameter; thread length about 3x hole diameter.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Cost tips: limit hole depth, thread length, tolerances; relief at blind hole bottoms. Note: Snippet only","used_for":[],"imported":"cadab2df06e9b849","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"hubs-selecting-the-right-cnc-material-25-materials-compared","kind":"guide","category":"manufacturing-guides","title":"Selecting the right CNC material: 25 materials compared","authors":[],"org":"Hubs (Protolabs Network)","year":null,"url":"https://www.hubs.com/knowledge-base/selecting-materials-cnc-machining-25-materials-compared","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Compares stock machining metals: 1018, 4140, 304, 316, 6061; guidance by corrosion, strength, weight. Note: Details from search summary","used_for":[],"imported":"5b5e051adb1c97e4","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"sendcutsend-sheet-cnc-machining-design-guidelines","kind":"guide","category":"manufacturing-guides","title":"Sheet: CNC machining design guidelines (SendCutSend)","authors":[],"org":"SendCutSend","year":null,"url":"https://sendcutsend.com/guidelines/cnc-machining/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"claimed","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Min internal radius 1.587 mm (0.0625 in); wall corner fillet at least cutter radius or 1/5 wall height.","status":"corroborated","evidence":"JLCCNC table: 2.0 mm tool gives min R 1.5 mm; Frontpanel Express: 1.5 mm typical. Close to 1.587 mm but not identical; fillet-ratio part not confirmed."}],"summary":"SendCutSend CNC limits: min internal cutout and internal radius, wall-to-wall fillet rule. Note: No min wall number seen","used_for":[],"imported":"d14c8300fffb9977","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"hubs-surface-finishes-for-cnc-machining-hubs","kind":"guide","category":"manufacturing-guides","title":"Surface finishes for CNC machining (Hubs)","authors":[],"org":"Hubs (Protolabs Network)","year":null,"url":"https://hubs.com/knowledge-base/surface-finishes-cnc-machinings","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"none","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Covers bead blasting, anodizing Type II/III, powder coating and process order. Note: No numeric rules seen","used_for":[],"imported":"16284d0d0397fff7","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"fictiv-the-complete-guide-to-designing-tight-tolerance-parts","kind":"guide","category":"manufacturing-guides","title":"The Complete Guide to Designing Tight Tolerance Parts","authors":[],"org":"Fictiv","year":null,"url":"https://www.fictiv.com/ebooks/the-complete-guide-to-designing-tight-tolerance-parts","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"unknown","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Gated ebook on tight-tolerance design and drawings; GD&T and stack-up topics seen elsewhere. Note: Gated; body not seen","used_for":[],"imported":"c222dbe9dd63aba7","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"xometry-threaded-holes-xometry","kind":"guide","category":"manufacturing-guides","title":"Threaded Holes (Xometry)","authors":[],"org":"Xometry","year":null,"url":"https://www.xometry.com/resources/machining/threaded-holes/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining","threaded-inserts"],"processes":["cnc-mill","inserts"],"process_groups":["cnc","inserts"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Deep threaded hole: thread depth over 1.5x thread diameter.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Defines deep threaded hole and advises adding a boss for extra thread thickness. Note: Snippet only","used_for":[],"imported":"8d3dfe6233dcfafd","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining","fasteners-and-hardware"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"omw-corp-understanding-and-specifying-anodizing","kind":"guide","category":"manufacturing-guides","title":"Understanding and Specifying Anodizing","authors":[],"org":"OMW Corp","year":null,"url":"https://www.omwcorp.com/files/resources/Understanding_and_Specifying_Anodizing_1.pdf","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"unknown","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"summary":"Anodizing specification primer from a finisher; content not shown in snippet. Note: Finisher PDF; title only","used_for":[],"imported":"32c20d14ae5d6368","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"xometry-what-every-designer-needs-to-know-about-cnc-part","kind":"guide","category":"manufacturing-guides","title":"What Every Designer Needs to Know About CNC Part Tolerances","authors":[],"org":"Xometry","year":null,"url":"https://xometry.com/resources/machining/what-every-designer-needs-to-know-about-cnc-part-tolerances","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Apply tight and/or geometric tolerances only to critical areas.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Tolerance primer; advises tight or geometric tolerances only on critical areas. Note: Title and tolerance advice from snippets only","used_for":[],"imported":"0808e657a4ce3c14","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"hubs-what-is-delrin-hubs","kind":"guide","category":"manufacturing-guides","title":"What is Delrin (Hubs)","authors":[],"org":"Hubs (Protolabs Network)","year":null,"url":"https://www.hubs.com/knowledge-base/what-is-delrin/","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-mill","cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"some","tested":"no","authority":"primary"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"Large Delrin parts can shrink about +/-0.05 mm.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Delrin is stable and machinable but can deform with heat; radii and selective tolerances cut cost. Note: Snippet only","used_for":[],"imported":"5e455d36e35991d7","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"},
    {"id":"wevolver-what-is-swiss-machining-swiss-type-cnc-lathes","kind":"guide","category":"manufacturing-guides","title":"What is Swiss machining: Swiss-type CNC lathes explained","authors":[],"org":"Wevolver","year":null,"url":"https://www.wevolver.com/article/what-is-swiss-machining-swiss-type-cnc-lathes-explained","access":"free","terms":"cited and summarised, never copied","licence":{"spdx":null,"class":"proprietary","read":false,"note":"A publisher's page; its terms were not read. Cited, never copied."},"reuse":{"text":"cite-only","geometry":"none"},"areas":["cnc-machining"],"processes":["cnc-turn"],"process_groups":["cnc"],"evidence":{"class":"snippet-only","numbers":"claimed","tested":"no","authority":"reference"},"confidence":{"level":"low","estimate":0.4,"sources":1},"claims":[{"text":"L/D above 3:1 favors Swiss; above 10:1 practically requires it; about +/-0.005 mm.","status":"unconfirmed","evidence":"No second source checked."}],"summary":"Swiss lathe overview: L/D advantages and routine tolerances. Note: Vendor figures disagree","used_for":[],"imported":"7166866c4f0824c1","status":"catalogued","evidence_class":"snippet-only","placed":["cnc-machining"],"source_file":"research/references/guides-cnc.yaml"}
  ]
}