Haptal

The CAD is done. Now the drawing.

Haptal builds software for mechanical engineers. Our first product, Anvil, takes a finished 3D model and gives you the drawing, the tolerances, the DFM check and the BOM.

Works from a STEP file. Any CAD.

ANVIL · PCD ADAPTER · A3 Production drawing of a PCD adapter made by Anvil: three views, hole callouts, tolerances, numbered notes and a title block

Made by Anvil from a STEP file. Not a mockup.

Third-angleISO 2768ISO 286ASME Y14.5DXF · PDF · SVGRuns on NVIDIA Nemotron
First product

Anvil.

Upload a STEP. Get back what the shop actually needs.

ANVIL

Drawing

Third-angle views, hole callouts, datums and frames, numbered notes. Exported as DXF into your title block.

Close-up of an Anvil drawing: 9X ⌀5 THRU, ⌀30 THRU, 3X ⌀4.2 on a ⌀50 bolt circle
ANVIL

GD&T

ISO 2768 defaults, ISO 286 fits, and a check of what each process can hold. Your stated tolerances always win.

⌀6 hole ISO 2768-mK routine CNC milling beyond FDM printing beyond injection moulding ⌀5 H7 → +0.012 / 0 ISO 286
ANVIL

DFM

Thin walls, deep holes, tight corners, unreachable features. Every flag names the feature and the fix.

HIGH R0.25 internal corner, cutter minimum is R0.5 (4 corners) MED Hole 4.8:1 deep, peck drill LOW 16 sharp edges, add edge break
ANVIL

Cost

CNC, turning, sheet metal, printing, moulding, casting. Ranked at your quantity, with the crossover.

1. CNC milling ~$50–340 / part 2. Die casting ~$164–372 / part crossover CNC under ~1,000 units, moulding above indicative, not a quote
ANVIL

BOM

Make or buy, per line. Bought parts link to McMaster, Misumi, Digi-Key, Thorlabs and others.

1 Nylon-insert locknut BUY 94945A205 · McMaster-Carr 2 6061-T6 bracket, 100 off MAKE CNC · drawing attached 3 M5 SHCS ×4 BUY 3 suppliers, links
The rule

If the kernel didn't measure it, Anvil doesn't say it.

Every number on the sheet comes from the geometry engine. The AI writes around those numbers and is checked against them. A sentence that can't be verified doesn't ship.

01

Measured, not read off a picture

Faces, holes, walls and fits come from the solid model.

02

Standards, not vibes

ISO 2768, ISO 286, ASME Y14.5. Cited where they apply.

03

You stay in charge

Stated tolerances are kept. Suggested ones are marked draft.

04

It's your drawing

DXF out. Open it, edit it, release it.

How it works

Minutes, not a week.

01

Upload.

A STEP file from any CAD. Tell it the quantity and material if you like.

02

Anvil measures.

Every face, hole, wall and fit. Then it checks them against the standards.

03

Read the sheet.

Drawing, GD&T, DFM, cost and BOM. All on one page.

04

Finish in your CAD.

Open the DXF, make your edits, release.

Real output

Real sheets. Not mockups.

Straight out of Anvil, from real parts.

Who it's for

Teams that ship parts.

Robotics

New brackets, mounts and housings every week. Each one needs a drawing before the shop will touch it.

Hardware startups

Small teams, no drafter. Engineers should be designing, not filling in title blocks.

Machine shops

Customers send a STEP and nothing else. Now you can quote it properly.

In development

Ask Anvil.

Questions about your part, answered from its measured data. If the answer isn't in the data, it says so.

Can this run on a 3-axis mill?
Mostly. Four internal corners are R0.25 and the smallest cutter in the shop profile is R0.5. Open those to R0.6 or add a relief and it's a routine job.dfm.findings[2] · geometry.corners · tools.min_radius
Tightest tolerance on the sheet?
⌀5 H7, +0.012 / 0, on the pilot bore. It's the only feature you stated. Everything else is ISO 2768-mK.tolerances.stated[0] · ISO 286-1
Get started

Run it on your parts.

Send us a STEP file. We'll run it and walk you through the sheet.