Describe the part you need

Plain words in, a real parametric CAD model out. Built and checked in a sandbox, then yours to tune with sliders and download as STL or STEP.

One free part, no account needed. Sign up for 4 more.

How it works

  1. 1

    Describe

    Type what you need in plain words. If something is unclear, you get a short question with a recommended answer.

  2. 2

    Check

    The part is built and tested against its own checklist: fits, clearances, wall thickness, one solid body.

  3. 3

    Tune and export

    Move the sliders to adjust dimensions, then download STL or STEP.

Pricing

One credit is one part. Sliders, questions and retries are free.

Free

Try it.

$0

  • 4 credits at signup
  • Preview only

Hobby

A few parts a month.

$15 per month

  • 25 credits per month
  • STL export

Maker

Parts every week.

$49 per month

  • 80 credits per month
  • STL and STEP export

Pro

Parts every day.

$119 per month

  • 250 credits per month
  • STL and STEP export
Top-up
25 extra credits, no subscription.
$15

Questions

What does Type Parts make?
A parametric CAD model of the part you describe. You type the part in plain words, the model is built and tested in a sandbox, and you get a 3D preview with sliders for its dimensions. Download it as STL for 3D printing or STEP for your CAD software.
Is there a free plan?
Yes. One part is free with no account, and signing up gives 4 more credits. The free plan previews only: STL export starts on Hobby and STEP export on Maker.
What is a credit?
One credit is one part. Moving the sliders, answering a clarifying question and retrying a failed build are free. A change asked for in chat costs 1 credit. If the builder cannot make the part, or the result is not what you asked for, the credit is refunded.
What is a parametric model?
A model whose dimensions are named parameters rather than fixed numbers. A gear's tooth count, module and bore stay adjustable after the build: move a slider and the part rebuilds and is checked again, so one description gives you a whole family of parts.
What gets checked?
Each part carries its own checklist: fits, clearances, wall thickness and one solid body. Every build runs it and shows what passed and what failed before you download anything.
STL or STEP?
STL is a mesh and goes straight into a slicer for 3D printing. STEP is the exact geometry and opens in Fusion 360, FreeCAD, SolidWorks or Onshape for further work. Assemblies export as a zip of STL files or as one STEP file.