# Design process: references

34 records: 1 read source that the rules and checks may cite, and 33 records catalogued from the Reference Map, not yet read. Requirements and the dossier that holds them, integrity gates and section reviews, through to release.

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/design-process.json. All areas: [references](../references.md).

## Coverage

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

- **Tolerance stack-up (worst case, RSS)** (Missing): No loop-sum helper: worst-case and RSS over a named direction, Cpk, tolerance-class defaults; src/cadagent/review/dossier/stackup.py does not exist. Drafted issue, never posted: "Implement tolerance stack-up helper (worst case and RSS)".
- **Cost drivers and process break-even** (Missing): No cost model: setup vs unit cost, tooling amortisation, FDM-vs-MJF-vs-CNC-vs-moulding break-even quantity, cost multipliers (tight tolerance, deep pocket). Drafted issue, never posted: "Add process cost estimator and break-even helper".

## Records

| Record | Kind | Evidence | Confidence | Licence | Process | Role |
|---|---|---|---|---|---|---|
| [Jawstec: Why Heat-Set Insert Specifications Need Scrutiny](https://www.jawstec.com/?p=76921) · Jawstec · `jawstec-why-heat-set-insert-specifications-need-scrutiny` | Guide | read | low 0.4 | proprietary, not read | Inserts and fasteners, General DFM |  |
| [3D Printing vs Injection Molding Breakeven (Xometry)](https://xometry.com/blog/3d-printing-vs-injection-molding-breakeven) · Xometry · `xometry-3d-printing-vs-injection-molding-breakeven-xometry` | Guide | snippet only | low 0.4 | proprietary, not read | Moulding and casting, General DFM |  |
| [5 Easy Ways to Reduce 3D Printing Costs (Xometry)](https://www.xometry.com/resources/3d-printing/5-easy-ways-to-reduce-3d-printing-costs/) · Xometry · `xometry-5-easy-ways-to-reduce-3d-printing-costs-xometry` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Ashby materials selection method (CVUT course PDF)](https://users.fs.cvut.cz/libor.benes/vyuka/engineeringmaterials/ASHBY%20METHOD%20_%20SM_2.1.pdf) · CTU Prague course notes · `ctu-prague-course-notes-ashby-materials-selection-method` | Paper or thesis | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [ASME Y14.5-2018 dimensioning and tolerancing](https://store.sfs.fi/en/asme-y145-2018) · SFS standards store · `sfs-standards-store-asme-y14-5-2018-dimensioning-and` | Standard | snippet only | low 0.4 | proprietary, not read | General DFM, CNC machining |  |
| [Bearing shaft and housing tolerance (NSK Technical Insight)](https://nsk.com/content/dam/nsk/eu/en_gb/documents/P_TI-0001_EN.pdf) · NSK · `nsk-bearing-shaft-and-housing-tolerance-nsk-technical` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Boothroyd Dewhurst DFMA presentation (Dewhurst, DFMA forum 2019)](https://www.dfma.com/forum/2019pdf/dewhurstpres.pdf) · Boothroyd Dewhurst Inc. · `boothroyd-dewhurst-inc-boothroyd-dewhurst-dfma-presentation` | Paper or thesis | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [cq\_gears](https://github.com/meadiode/cq_gears) · meadiode (GitHub) · `meadiode-cq-gears` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Design Tips for SLS 3D Printing wall thickness (Sinterit)](https://www.sinterit.com/3d-printing-guide/design-for-3d-printing/wall-thickness-3d-print/) · Sinterit · `sinterit-design-tips-for-sls-3d-printing-wall-thickness` | Guide | snippet only | low 0.4 | proprietary, not read | 3D printing, General DFM |  |
| [dfm-check](https://github.com/artprinting3d-web/dfm-check) · artprinting3d-web (GitHub) · `artprinting3d-web-dfm-check` | Guide | snippet only | low 0.4 | proprietary, not read | 3D printing, PCB and electronics, General DFM |  |
| [DFMA explained (Wevolver)](https://www.wevolver.com/article/dfma-design-for-manufacturing-and-assembly-explained) · Wevolver · `wevolver-dfma-explained-wevolver` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [DuPont General Design Principles for Engineering Polymers (mirror)](https://academic.sun.ac.za/mad/catalogs/dfmguidelines/dupontgeneraldesignprinciples.pdf) · DuPont (Stellenbosch-hosted copy) · `dupont-general-design-principles-for-engineering-polymers` | Guide | snippet only | low 0.4 | proprietary, not read | Moulding and casting, General DFM |  |
| [freecad.gears](https://github.com/looooo/freecad.gears) · looooo (GitHub) · `looooo-freecad-gears` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Fundamentals of GD&T ASME Y14.5-2018 Foundational Level](https://saemobilus.sae.org/content/ET2150/) · SAE International · `sae-international-fundamentals-of-gd-and-t-asme-y14-5-2018` | Standard | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Geometric dimensioning and tolerancing (Wikipedia)](https://en.wikipedia.org/wiki/Geometric_dimensioning_and_tolerancing) · Wikipedia · `wikipedia-geometric-dimensioning-and-tolerancing-wikipedia` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Hardox plasma/cutting guide (SSAB)](https://www.ssab.com/-/media/90c540b6d47f4c05b256929d4d1821d6.ashx) · SSAB · `ssab-hardox-plasma-cutting-guide-ssab` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | General DFM |  |
| [IEC 62133-2 safety of portable sealed lithium cells](https://www.batterydesign.net/legislation-rules-and-regulations/iec-62133-2/) · batterydesign.net · `batterydesign-net-iec-62133-2-safety-of-portable-sealed` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [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 286 limits and fits: H7/g6 (Machining Doctor)](https://www.machiningdoctor.com/?p=11834) · Machining Doctor · `machining-doctor-iso-286-limits-and-fits-h7-g6-machining` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | CNC machining, General DFM |  |
| [ISO/ASTM 52900:2021 additive manufacturing vocabulary](https://scc-ccn.ca/standardsdb/standards/8167516) · SCC (Standards Council of Canada) listing · `scc-iso-astm-52900-2021-additive-manufacturing-vocabulary` | Standard | snippet only | low 0.4 | proprietary, not read | 3D printing, General DFM |  |
| [MatWeb Nylon 6 carbon fiber filled group](https://www.matweb.com/Search/MaterialGroupSearch.aspx?GroupID=17) · MatWeb · `matweb-nylon-6-carbon-fiber-filled-group` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | 3D printing, General DFM |  |
| [Minimum Wall Thickness for 3D Printing (Formlabs blog)](https://formlabs.com/eu/blog/minimum-wall-thickness-3d-printing/) · Formlabs · `formlabs-minimum-wall-thickness-for-3d-printing-formlabs` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM, 3D printing |  |
| [Protolabs: 3D Printing Cost](https://www.protolabs.com/resources/design-tips/3d-printing-cost/) · Protolabs · `protolabs-3d-printing-cost` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Protolabs: 6 Ways to Cut Costs with Industrial 3D Printing](https://www.protolabs.com/resources/design-tips/cutting-costs-with-industrial-3d-printing/) · Protolabs · `protolabs-6-ways-to-cut-costs-with-industrial-3d-printing` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM, 3D printing |  |
| [Protolabs: 7 Mistakes to Avoid When Designing 3D Printed Parts](https://protolabs.com/resources/design-tips/7-mistakes-to-avoid-when-designing-3d-printed-parts) · Protolabs · `protolabs-7-mistakes-to-avoid-when-designing-3d-printed` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Protolabs: Understanding 3D Printing Tolerances](https://www.protolabs.com/resources/design-tips/3d-printing-tolerances/) · Protolabs · `protolabs-understanding-3d-printing-tolerances` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM, 3D printing |  |
| [Race to 1,000 Parts: 3D Printing vs. Injection Molding](https://formlabs.com/global/blog/race-to-1000-parts-3d-printing-injection-molding/) · Formlabs · `formlabs-race-to-1-000-parts-3d-printing-vs-injection` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | Moulding and casting, General DFM |  |
| [Scholz: Tolerance stack-up analysis (Boeing review, UW copy)](https://faculty.washington.edu/fscholz/DATAFILES498B2008/TOLSTACK.pdf) · University of Washington (F. Scholz, Boeing) · `university-of-washington-scholz-tolerance-stack-up-analysis` | Paper or thesis | snippet only (authors' claim) | low 0.4 | proprietary, not read | General DFM |  |
| [Shaft and housing fits (NSK Technical Report 3)](https://nsk.com/kr/services/technicalreport/03fitting.html) · NSK · `nsk-shaft-and-housing-fits-nsk-technical-report-3` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | General DFM |  |
| [Shaft and housing fits (SKF catalog excerpt)](https://cdn.skfmediahub.skf.com/api/public/0941f795342272f4/pdf_preview_medium/0941f795342272f4_pdf_preview_medium.pdf) · SKF · `skf-shaft-and-housing-fits-skf-catalog-excerpt` | Guide | snippet only (authors' claim) | low 0.4 | proprietary, not read | General DFM |  |
| [Tol-Ninja](https://github.com/slehmann1/Tol-Ninja) · slehmann1 (GitHub) · `slehmann1-tol-ninja` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [Tolerance stack-up analysis: worst case vs RSS (Wevolver)](https://www.wevolver.com/article/tolerance-stack-up-analysis-worst-case-vs-rss-methods) · Wevolver · `wevolver-tolerance-stack-up-analysis-worst-case-vs-rss` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM |  |
| [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 |  |
| [Xometry: injection molding vs 3D printing break-even](https://www.xometry.com/resources/3d-printing/3d-printing-vs-injection-molding-breakeven/) · Xometry · `xometry-injection-molding-vs-3d-printing-break-even` | Guide | snippet only | low 0.4 | proprietary, not read | General DFM, Moulding and casting, 3D printing |  |