# Sheet metal: references

89 records: 59 read sources that the rules and checks may cite, and 30 records catalogued from the Reference Map, not yet read. Bent metal parts.

Catalogued records are search snippets: their numbers are the authors' claims and their licences are as the map states them, unread. Cite one only after reading it.

The same records as JSON: https://cad-agent.valpatel.com/catalog/references/sheet-metal.json. All areas: [references](../references.md).

## Coverage

What cad-agent checked when the map was made; each drafted issue was never posted.

- **Sheet metal: flange, bend radius, hole-to-edge/bend, relief, K-factor** (Implemented): bend() takes only 5052, mild steel, G90, 304 and 316, though the profile's SendCutSend table has 6061-T6 rows (profile:5099 onward) and a note on grain; no hem, jog or louver rules; bend-to-bend spacing not checked.
- **PEM/self-clinching edge distance and hole size** (Implemented): Cited subset of parts; PEM blind types B/BS and standoff families not covered; SendCutSend 0.23-0.31 in catalog edge distance not mapped; rivets in mechanical/rivets.py.

## Records

| Record | Kind | Evidence | Confidence | Licence | Process | Role |
|---|---|---|---|---|---|---|
| [A Guide to PEM Hardware Inserts in Sheet Metal](https://sendcutsend.com/blog/pem-hardware-inserts-in-sheet-metal/) · SendCutSend · `sendcutsend-pem-guide` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [Bending Deformation Guidelines](https://sendcutsend.com/guidelines/bend-deformation/) · SendCutSend · `sendcutsend-bend-deformation` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Design tips for sheet metal: Bend relief, small holes, hole distortion near bends, and minimum flange widths](https://www.thefabricator.com/article/bending/design-tips-for-sheet-metal-bend-relief-small-holes-hole-distortion-near-bends-and-minimum-flange-widths) · The FABRICATOR (FMA Communications) · `davis-2001-fabricator-design-tips` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Designing Sheet Metal Parts With Tab and Slots](https://sendcutsend.com/blog/designing-sheet-metal-parts-with-tab-and-slots/) · SendCutSend · `sendcutsend-tab-slot` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [FreeCAD SheetMetal Workbench](https://github.com/shaise/FreeCAD_SheetMetal) · FreeCAD community (github.com/shaise) · `freecad-sheetmetal` | Guide | read | low 0.4 | share-alike, not read | Sheet metal and laser |  |
| [Hardware Installation Design Guidelines](https://www.pcbway.com/blog/CNC_Machining/Hardware_Installation_Design_Guidelines_15aa42f5.html) · PCBWay · `pcbway-hardware-installation-design-guidelines` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [How to Design Bend Reliefs & Corner Reliefs for Sheet Metal Parts](https://sendcutsend.com/blog/guide-to-designing-bend-reliefs/) · SendCutSend · `sendcutsend-bend-relief` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [How to Save Time with Locating Features for Weldments](https://sendcutsend.com/blog/how-to-save-time-with-locating-features-for-weldments/) · SendCutSend · `sendcutsend-how-to-save-time-with-locating-features-for` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [Self-clinching nuts bulletin CL (PEM, hosted copy)](https://static.chipdip.ru/lib/234/DOC027234353.pdf) · PennEngineering PEM (hosted copy) · `pennengineering-pem-self-clinching-nuts-bulletin-cl-pem` | Guide | read (authors' claim) | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [Sheet Metal Tolerances (one-pager)](https://protolabs.com/media/roognect/sheet-metal-tolerances-one-pager-2.pdf) · Protolabs · `protolabs-sheet-metal-tolerances` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Tabs and Slots for Sheet Metal Part Design](https://www.fictiv.com/articles/sheet-metal-tabs-and-slots-assembly) · Fictiv · `fictiv-tabs-slots` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [Welded Sheet Metal Parts Design Guidelines](https://www.pcbway.com/blog/Welding/Welded_Sheet_Metal_Parts_Design_Guidelines_a79851e3.html) · PCBWay · `pcbway-welded-sheet-metal-parts-design-guidelines` | Guide | read | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [AC 43.13-1B with Change 1: Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair](https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_43.13-1B_w-chg1.pdf) · US Federal Aviation Administration · `faa-ac-43-13-1b` | Read source | read | unknown | not recorded |  |  |
| [Anodizing, Plating and Powder Coating services (finishing guidelines)](https://sendcutsend.com/services/powder-coating/) · SendCutSend · `sendcutsend-finishing` | Read source | read | unknown | not recorded |  |  |
| [ASTM B209/B209M-21 Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate](https://store.astm.org/b0209_b0209m-21.html) · ASTM International · `astm-b209` | Read source | read | unknown | not recorded |  |  |
| [build123d sheet metal (BuildSheet, unfold; dev branch)](https://github.com/gumyr/build123d/tree/dev/docs/sheet_metal) · build123d project (github.com/gumyr) · `build123d-sheet-metal` | Read source | read | unknown | not recorded |  |  |
| [CL Self-Clinching Nuts (Bulletin CL)](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/cldata.pdf) · PennEngineering (PEM) · `pem-bulletin-cl` | Read source | read | unknown | not recorded |  |  |
| [Countersink Design Best Practices](https://sendcutsend.com/blog/countersink-design-best-practices) · SendCutSend · `sendcutsend-countersink` | Read source | read | unknown | not recorded |  |  |
| [Design & Manufacturing Guides (resources index and component pages)](https://www.protocase.com/resources/guides/) · Protocase · `protocase-design-resources` | Read source | read | unknown | not recorded |  |  |
| [Design for Manufacturing design review checklist](https://www.dfma.com/resources/pdf/dfm-design-review-checklist.pdf) · Boothroyd Dewhurst, Inc. · `dfma-dfm-checklist` | Read source | read | unknown | not recorded |  |  |
| [Design Guidelines for Sheet Metal Fabrication](https://www.protolabs.com/services/sheet-metal-fabrication/design-guidelines/) · Protolabs · `protolabs-sheet-metal` | Read source | read | unknown | not recorded |  |  |
| [DIN 6935:2011-10 Kaltbiegen von Flacherzeugnissen aus Stahl (Cold bending of flat rolled steel)](https://dinmedia.de/en/standard/din-6935/144419944) · DIN (sold by DIN Media) · `din-6935` | Read source | read | unknown | not recorded |  |  |
| [F PEMSERT Self-Clinching Flush Nuts (Bulletin F)](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/fdata.pdf) · PennEngineering (PEM) · `pem-bulletin-f` | Read source | read | unknown | not recorded |  |  |
| [FH Self-Clinching Studs and Pins (Bulletin FH)](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/fhdata.pdf) · PennEngineering (PEM) · `pem-bulletin-fh` | Read source | read | unknown | not recorded |  |  |
| [Hardware Catalog](https://sendcutsend.com/guidelines/hardware/catalog/) · SendCutSend · `sendcutsend-hardware-catalog` | Read source | read | unknown | not recorded |  |  |
| [How to Avoid Galvanic Corrosion on Your Laser Cut Parts](https://sendcutsend.com/blog/how-to-avoid-galvanic-corrosion-on-your-laser-cut-parts/) · SendCutSend · `sendcutsend-galvanic` | Read source | read | unknown | not recorded |  |  |
| [HVAC Duct Construction Standards - Metal and Flexible, 4th edition](https://shop.iccsafe.org/hvac-duct-construction-standards-metal-and-flexible-4th-edition.html) · SMACNA (sold by ICC) · `smacna-duct` | Read source | read | unknown | not recorded |  |  |
| [ISO 2768-1:1989 General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications](https://www.iso.org/standard/7748.html) · ISO · `iso-2768-1` | Read source | read | unknown | not recorded |  |  |
| [K-Factor - 2022 - SOLIDWORKS Design Help](https://help.solidworks.com/2022/English/SolidWorks/sldworks/c_K_Factor.htm) · Dassault Systemes SolidWorks Corporation · `solidworks-k-factor` | Read source | read | unknown | not recorded |  |  |
| [Laser Cutting Online Quotes & Pricing](https://sendcutsend.com/pricing/) · SendCutSend · `sendcutsend-pricing` | Read source | read | unknown | not recorded |  |  |
| [Manufacturing Reference for Sheet Metal Products](https://www.pblprojects.org/wp-content/uploads/2019/03/Manufacturing-Reference-Guide_for_Sheet_Metal_Products.pdf) · Century Tywood (fabricator, Holliston, MA) · `century-tywood-sheet-metal-reference` | Read source | read | unknown | not recorded |  |  |
| [Manufacturing Standards](https://www.xometry.com/manufacturing-standards/) · Xometry, Inc. · `xometry-manufacturing-standards` | Read source | read | unknown | not recorded |  |  |
| [Metal Bending Design Rules](https://www.oshcut.com/design-guide/metal-bending-design-rules) · OSH Cut · `oshcut-bending-rules` | Read source | read | unknown | not recorded |  |  |
| [Online Countersinking Services (countersink guidelines)](https://sendcutsend.com/services/countersinking/) · SendCutSend · `sendcutsend-countersinking-service` | Read source | read | unknown | not recorded |  |  |
| [Online Dimple Forming Services (dimple guidelines)](https://sendcutsend.com/services/dimple-forming/) · SendCutSend · `sendcutsend-dimple-forming` | Read source | read | unknown | not recorded |  |  |
| [Online Hardware Installation Service (hardware guidelines)](https://sendcutsend.com/services/hardware/) · SendCutSend · `sendcutsend-hardware-service` | Read source | read | unknown | not recorded |  |  |
| [open-mrp/dfm, a deterministic DFM engine for laser cutting and bending](https://github.com/open-mrp/dfm) · open-mrp (github.com/open-mrp) · `open-mrp-dfm` | Read source | read | unknown | not recorded |  |  |
| [PEM self-clinching nuts types S, SS, CLS, CLSS, SP: catalogue pages CLS-M3-1 and SP-M3-1](https://catalog.pemnet.com/item/nuts-types-s-ss-cls-clss-cla-sp/self-clinching-nuts-types-s-ss-cls-clss-sp-metric/cls-m3-1) · PennEngineering (PEM) · `pem-catalog-self-clinching-nuts` | Read source | read | unknown | not recorded |  |  |
| [Predicting the inside radius when bending with the press brake](https://www.thefabricator.com/thefabricator/article/bending/predicting-the-inside-radius-when-bending-with-the-press-brake) · The FABRICATOR (FMA Communications) · `benson-2015-fabricator-inside-radius` | Read source | read | unknown | not recorded |  |  |
| [Resources (sheet metal design charts)](https://www.approvedsheetmetal.com/resources/) · Approved Sheet Metal · `approved-sheet-metal-resources` | Read source | read | unknown | not recorded |  |  |
| [SendCutSend engineering specifications (sendcutsend-specs.json, schema 1.0)](https://cdn.sendcutsend.com/specs/sendcutsend-specs.json) · SendCutSend · `sendcutsend-specs` | Read source | read | unknown | not recorded |  |  |
| [SendCutSend ordering catalogue (sendcutsend-catalog.json, schema 1.0)](https://cdn.sendcutsend.com/specs/sendcutsend-catalog.json) · SendCutSend · `sendcutsend-catalog` | Read source | read | unknown | not recorded |  |  |
| [SendCutSend ordering guide (sendcutsend-ordering-guide.md)](https://cdn.sendcutsend.com/specs/sendcutsend-ordering-guide.md) · SendCutSend · `sendcutsend-ordering-guide` | Read source | read | unknown | not recorded |  |  |
| [Sheet Cutting Guidelines](https://sendcutsend.com/guidelines/sheet-cutting/) · SendCutSend · `sendcutsend-sheet-cutting` | Read source | read | unknown | not recorded |  |  |
| [Sheet Metal (Onshape Help)](https://cad.onshape.com/help/Content/sheetmetal.htm) · PTC Onshape · `onshape-sheet-metal` | Read source | read | unknown | not recorded |  |  |
| [Sheet Metal Bending Calculator](https://sendcutsend.com/bending-calculator/) · SendCutSend · `sendcutsend-bending-calculator` | Read source | read | unknown | not recorded |  |  |
| [Sheet Metal Bending Services (bending guidelines)](https://sendcutsend.com/services/cnc-bending/) · SendCutSend · `sendcutsend-bending-service` | Read source | read | unknown | not recorded |  |  |
| [Sheet metal fabrication: The manufacturing & design guide](https://www.hubs.com/guides/sheet-metal-fabrication/) · Protolabs Network (formerly Hubs) · `hubs-sheet-metal` | Read source | read | unknown | not recorded |  |  |
| [Sheet Metal Tapping Services (tapping guidelines)](https://sendcutsend.com/services/tapping/) · SendCutSend · `sendcutsend-tapping` | Read source | read | unknown | not recorded |  |  |
| [SO Self-Clinching Standoffs (Bulletin SO)](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/sodata.pdf) · PennEngineering (PEM) · `pem-bulletin-so` | Read source | read | unknown | not recorded |  |  |
| [Stainless Steel 304 #1 Finish (material details)](https://www.oshcut.com/materialdetails/stainless-steel-304-1-finish) · OSH Cut · `oshcut-material-304` | Read source | read | unknown | not recorded |  |  |
| [Tech Sheet PEM REF/ C/L to Edge: Minimum distance hole C/L to edge](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/CLtoEdgeRev419.pdf) · PennEngineering (PEM) · `pem-tech-sheet-cl-to-edge` | Read source | read | unknown | not recorded |  |  |
| [Tech Sheet PEM REF/ Choosing a fastener finish: metal fasteners in contact with metal panels](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/Fastener_Finish.pdf) · PennEngineering (PEM) · `pem-tech-sheet-finish` | Read source | read | unknown | not recorded |  |  |
| [Tech Sheet PEM REF/ Fasteners for use in stainless steel sheets](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/Stainless_Steel_Sheets.pdf) · PennEngineering (PEM) · `pem-tech-sheet-stainless` | Read source | read | unknown | not recorded |  |  |
| [Tech Sheet PEM REF/ Surface finishing sheet metal assemblies](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/Surface_Finish.pdf) · PennEngineering (PEM) · `pem-tech-sheet-surface-finishing` | Read source | read | unknown | not recorded |  |  |
| [text-to-cad](https://github.com/earthtojake/text-to-cad) · Thompson Labs LLC (github.com/earthtojake) · `text-to-cad` | Read source | read | unknown | not recorded |  |  |
| [The Self Clinching Fastener Handbook](https://www.pemnet.com/wp-content/uploads/sites/2/2022/06/self-clinching-fastener-handbook.pdf) · PennEngineering (PEM) · `pem-handbook` | Read source | read | unknown | not recorded |  |  |
| [Tips for Making Sheet-Metal Parts](https://www.machinedesign.com/mechanical-motion-systems/article/21835979/tips-for-making-sheet-metal-parts) · Machine Design (Paulsen was Director of Applications Engineering at Xometry) · `paulsen-2017-machine-design-sheet-metal` | Read source | read | unknown | not recorded |  |  |
| [What are the thicknesses for your finishes? (FAQ)](https://sendcutsend.com/faq/what-are-the-thicknesses-for-your-finishes/) · SendCutSend · `sendcutsend-finish-thickness` | Read source | read | unknown | not recorded |  |  |
| [5 Ways to Reduce Costs on Sheet Metal Fabrication](https://www.xometry.com/resources/machining/5-ways-to-save-money-on-sheet-metal-fabrication) · Xometry · `xometry-5-ways-to-reduce-costs-on-sheet-metal-fabrication` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [5052 H32 Aluminum Sheet Metal](https://sendcutsend.com/materials/5052-aluminum/) · SendCutSend · `sendcutsend-5052-h32-aluminum-sheet-metal` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [7 Ways to Improve Sheet Metal Parts](https://www.protolabs.com/resources/design-tips/8-ways-to-improve-sheet-metal-parts/) · Protolabs · `protolabs-7-ways-to-improve-sheet-metal-parts` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Aluminum 5052 vs 6061: Differences, Strength, Corrosion & Best Uses](https://hmaking.com/5052-vs-6061-aluminum/) · Hmaking · `hmaking-aluminum-5052-vs-6061-differences-strength-corrosion` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Analyzing the K-factor in sheet metal bending](https://www.thefabricator.com/article/bending/analyzing-the-k-factor-in-sheet-metal-bending) · The Fabricator · `the-fabricator-analyzing-the-k-factor-in-sheet-metal-bending` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Can SendCutSend bend parts with a custom bend radius?](https://sendcutsend.com/faq/can-you-bend-parts-with-a-custom-bend-radius/) · SendCutSend · `sendcutsend-can-sendcutsend-bend-parts-with-a-custom-bend` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Design Guide: Laser and Sheet Cutting](https://www.xometry.com/resources/design-guides/design-guide-laser-and-sheet-cutting/) · Xometry · `xometry-design-guide-laser-and-sheet-cutting` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Designing for Online Sheet Metal Bending Services](https://sendcutsend.com/blog/designing-for-bending-and-forming/) · SendCutSend · `sendcutsend-designing-for-online-sheet-metal-bending` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Designing Sheet Metal Enclosures](https://www.protolabs.com/resources/design-tips/designing-sheet-metal-enclosures/) · Protolabs · `protolabs-designing-sheet-metal-enclosures` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Do I need to compensate for kerf in my design?](https://sendcutsend.com/faq/do-i-need-to-compensate-for-kerf-in-my-design/) · SendCutSend · `sendcutsend-do-i-need-to-compensate-for-kerf-in-my-design` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Guidelines for Hardware Insertion](https://sendcutsend.com/guidelines/hardware/) · SendCutSend · `sendcutsend-guidelines-for-hardware-insertion` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [How to Reduce Sheet Metal Fabrication Costs](https://geomiq.com/blog/how-to-reduce-sheet-metal-fabrication-costs/) · Geomiq · `geomiq-how-to-reduce-sheet-metal-fabrication-costs` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [ISO 2768 (Xometry)](https://www.xometry.com/resources/certifications/iso-2768) · Xometry · `xometry-iso-2768-xometry` | Guide | snippet only | low 0.4 | proprietary, not read | CNC machining, General DFM, Sheet metal and laser |  |
| [ISO 2768 general tolerances: tables, classes, status](https://www.wevolver.com/article/iso-2768-general-tolerances-tables-classes-current-status) · Wevolver · `wevolver-iso-2768-general-tolerances-tables-classes-status` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | CNC machining, Sheet metal and laser |  |
| [OSH Cut Aluminum 5052-H32 bending terms](https://www.oshcut.com/materialdetails/aluminum-5052-h32) · OSH Cut · `osh-cut-aluminum-5052-h32-bending-terms` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [OSH Cut Aluminum 6061-T6 bending terms](https://www.oshcut.com/materialdetails/aluminum-6061-t6) · OSH Cut · `osh-cut-aluminum-6061-t6-bending-terms` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [PEM blind fastener bulletin B (Mouser copy)](https://mouser.com/datasheet/2/974/bdata-3555378.pdf) · PennEngineering PEM (hosted copy) · `pennengineering-pem-pem-blind-fastener-bulletin-b-mouser` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [PEM self-clinching blind fasteners B/BS datasheet](https://catalog.pemnet.com/item/blind-nuts-types-b-bs/self-clinching-blind-fasteners-types-b-bs-unified/bs-440-2?dlpdf=t) · PennEngineering (PEM) · `pennengineering-pem-self-clinching-blind-fasteners-b-bs` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | Sheet metal and laser, Inserts and fasteners |  |
| [Ponoko manufacturing standards](https://help.ponoko.com/en/articles/9358110-ponoko-manufacturing-standards) · Ponoko · `ponoko-manufacturing-standards` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [POP Rivet Selection Factors](https://www.stanleyengineeredfastening.com:443/en/brands/POP/POP%20Rivet%20Selection%20Factors) · Stanley Engineered Fastening · `stanley-engineered-fastening-pop-rivet-selection-factors` | Guide | snippet only | low 0.4 | proprietary, not read | Inserts and fasteners, Sheet metal and laser |  |
| [Protocase Tech Tips](https://www.protocase.com/resources/tech-tips) · Protocase · `protocase-tech-tips` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Protolabs Design for Sheet Metal Fabrication Toolkit](https://protolabs.com/resources/design-for-sheet-metal-fabrication-toolkit) · Protolabs · `protolabs-design-for-sheet-metal-fabrication-toolkit` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Sheet metal bending design guidelines (PCBWay)](https://www.pcbway.com/blog/Sheet_Metal/Sheet_Metal_Bending_Design_Guidelines_cbefb6cf.html) · PCBWay · `pcbway-sheet-metal-bending-design-guidelines-pcbway` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Sheet Metal Design Basics, Mfgrobots precision enclosure bending and hole placement](https://www.mfgrobots.com/Article/mfg/it/54223.html) · Mfgrobots · `mfgrobots-sheet-metal-design-basics-mfgrobots-precision` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Sheet Metal Fabrication Design Guide](https://geomiq.com/sheet-metal-design-guide/) · Geomiq · `geomiq-sheet-metal-fabrication-design-guide` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Sheet Metal Laser Cutting Tolerances: Complete Guide](https://fabcon.com/articles/?p=544) · Fabcon · `fabcon-sheet-metal-laser-cutting-tolerances-complete-guide` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Step By Step Guide To Sheet Metal Bending](https://sendcutsend.com/blog/step-by-step-guide-to-sheet-metal-bending/) · SendCutSend · `sendcutsend-step-by-step-guide-to-sheet-metal-bending` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Waterjet cutting design guidelines](https://sendcutsend.com/?p=68759) · SendCutSend · `sendcutsend-waterjet-cutting-design-guidelines` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |
| [Xometry tolerances of machined and sheet metal parts](https://community.xometry.com/kb/articles/728-tolerances-of-machined-and-sheet-metal-parts) · Xometry · `xometry-tolerances-of-machined-and-sheet-metal-parts` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser, General DFM |  |
| [YouCanNotUnfold](https://github.com/alexneufeld/YouCanNotUnfold) · alexneufeld (GitHub) · `alexneufeld-youcannotunfold` | Guide | snippet only | low 0.4 | proprietary, not read | Sheet metal and laser |  |