Tolerance-grademachinery drawings,ready for the shop floor.
A vetted library of engineering drawings for the hardware that keeps daily life running safely — carburetors, manifolds, brackets, housings, guards and exhaust components. GD&T-annotated, BOM-stamped, and traceable back to an ISO or ANSI standard a safety engineer can audit.
- Drawings
- 8,400+
- CAD formats
- 100+
- Standards
- 14 mapped
Filter the library
Search by family, regulation, or tolerance class.
You won't find a forum mesh on Tolerdraft. Every catalog entry is either a complete manufacturing package or, on rare exceptions, an explicitly marked draft awaiting review.
What ships in the box
Where general CAD marketplaces stop, we start a manufacturing package.
Generic libraries settle for surface meshes. For safety-critical machinery hardware that's not enough — a guard bracket has to satisfy a clause of a named standard, and a bracket that doesn't is a bench failure waiting to happen. Tolerdraft treats every drawing as documentation, not artwork.
Tolerance-grade drawings
GD&T-annotated orthographic projections with stated tolerance classes, datums and surface finishes — not screenshots from a forum thread.
Manufacturing package
BOMs, stock material specs, fastener callouts and finish instructions packaged alongside every drawing so a machinist can start a part immediately.
Standards traceable
Each part carries an audit-traceable card back to the applicable ISO or ANSI standard — ISO 13849, 14119, 13850, the ANSI B11 series, OSHA machine-guarding.
Drop into your toolchain
Certified exports in 100+ CAD formats including STEP, IGES, Parasolid, and native SolidWorks, Inventor and Fusion files for direct import.
Traceability
Every drawing carries a stamped card.
The card is what makes the difference between a part you can put on the bench and a part a safety engineer can audit. Each one names the applicable clause, the GD&T datum references an inspector will check, and the revision history it shipped under.
GRD-148-A — Guard Bracket
Reviewed against the clauses above and stamped for procurement. Re-stamp on any drawing revision — the part's revision and the card's revision move together.
How a part reaches the catalog
- 01
Supplier drafts a part in the target family.
Carburetor, manifold, bracket, housing, guard, exhaust component.
- 02
Tolerance, datum and finish declared in the title block.
A drawing that ships without these is a draft, not a part.
- 03
Mapped to an applicable ISO / ANSI / OSHA clause.
No mapping → reviewer sends it back. No exception.
- 04
IP provenance declared on submission.
Encumbered designs are flagged or rejected, never republished as-is.
- 05
Reviewed at the relevant tier, then published with a stamped card.
Starter for lower-risk components. Premium for safety-critical parts.
Drop into your toolchain
Certified exports in 100+ CAD formats.
STEP and IGES cover most handoffs; Parasolid keeps parametric fidelity for the kernels; native packages carry feature trees. Pick what fits your team. We don't pick for you.
Supplier publishing
Two tiers. Same stamped card.
Modeled on the catalog-reach economics used by TraceParts and 3Dfindit — Starter for catalog reach, Premium for the safety-critical parts that justify human review.
- GD&T title-block completeness check
- Format & unit-system validation
- IP provenance declaration required
- Standard-mapping field (optional)
- Standard exports (STEP, IGES, parasolid)
- All Starter checks, plus
- Manual clause mapping by a reviewer
- Datum-to-feature verification
- Surface-finish and material conformance
- Native CAD exports (SOLIDWORKS, Inventor, Fusion)
- Priority placement on the catalog
IP & sourcing notes
Fair-practice sourcing — declared, not assumed.
Encumbered designs are flagged or rejected.
If a submitted drawing traces back to an encumbered OEM patent, we reject the submission or carry sourcing notes that require the buyer to confirm their own license path. We do not republish OEM drawings as-is.
Reverse-engineered aftermarket parts require provenance.
A aftermarket safety upgrade on a customer retrofit has a documented chain of who assembled it and against which clause. Suppliers declare that chain on submission; buyers see it on the package.
Questions
Things buyers and suppliers ask before publishing or downloading.
Don't see yours? Email tolerdraft@polsia.app.
Ready to publish or buy
Put drawings on the bench,
not screenshots on a USB stick.
We're onboarding suppliers and accepting pilot buyers. Emailtolerdraft@polsia.app