Free online CAD part generator

Describe a simple part. Download the model and the drawing.

Plates, blocks, spacers, washers, flanges and gears. Type what you need or pick a part, change the dimensions, and download an STL for printing, a STEP for your CAD, a DXF for laser cutting and a dimensioned PDF drawing for the machine shop.

STL, STEP, DXF, PDF & SVGFully dimensioned drawingsAI reads your descriptionFree, no account

1 · Describe or pick mm

Try: "M3 spacer 12mm long", "flange 90mm, 6 M6 holes, 25 bore", or edit the current part: "make it 2mm thicker".

2 · Adjust —

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drag to orbit · scroll to zoom
Loading 3D viewer…
Bounding box (mm)—
Volume—
Est. mass—
Material—

Part generators

Each one is fully parametric, with its own page and tips.

Three steps, generated in seconds

01 / DESCRIBE

Say what you need

Write it like you'd tell a machinist ("120x80x6 plate, M5 holes 10mm from the edges") or pick a part type.

02 / ADJUST

Change dimensions

Every size, hole count and thickness is editable. The model and drawing update instantly.

03 / DOWNLOAD

Take it anywhere

STL for your slicer, STEP for your CAD, DXF for the laser cutter, PDF drawing for the workshop.

FAQ

Is it really free?

Yes. Generating and downloading parts is free. No account needed.

Are the drawings to scale?

Yes. The PDF is A3 landscape, drawn at a standard scale (shown in the title block), first-angle projection with dimensions in millimetres.

What is the DXF for?

It's the flat plan profile at 1:1 in millimetres, with outline, hidden and centre lines on separate layers. Ideal for laser cutting, waterjet or as a CNC sketch.

Can I get STEP files?

Yes. Click STEP to download a solid model that opens in Fusion, SolidWorks, Onshape, FreeCAD and most other CAD tools. The CAD engine loads the first time you use it, which can take a few seconds.

What happens to what I type?

Your description is sent to our server and an AI service to work out the part, and is not stored. The model, drawing and files are generated in your browser.

Can you make the part for me?

Not yet, but it's coming soon. You'll be able to order your part 3D printed or machined, straight from the generator.

Need it made? Coming soon.

Soon you'll be able to order any part you generate, 3D printed or machined, without leaving Partform.

Coming soon