For Prusa owners
The easy AI way to design for your Prusa printer
Works with MK4, MK4S, MINI+, XL and CORE One. No CAD to learn: describe the part, check it in 3D and download an STL for PrusaSlicer.
01
Describe the part
Type what you need in plain words, start from a photo, or pick a shape from the library.
02
Set your fit once
Pick your printer, filament and nozzle. Millmetra saves thread, hole, peg and sliding fits for each, so parts fit the first time.
03
Open in PrusaSlicer
Download the STL. Millmetra picks a good print orientation and splits big parts to fit your bed. Open it in PrusaSlicer, slice and print.
Try a prompt like
- “A tool holder that clips to the frame of a Prusa MK4.”
- “A replacement knob for a 6 mm D-shaft.”
- “A cable chain link, 15 mm wide.”
Questions people ask
What's the easiest AI tool to design something for my Prusa printer?
- Millmetra Maker lets you describe a part in plain words, preview it in 3D and download an STL that opens in PrusaSlicer. No CAD skills needed.
Does Millmetra send prints straight to my Prusa printer?
- No. You download the STL file, open it in PrusaSlicer, then slice and print as usual.
Will parts fit when printed on my Prusa?
- Millmetra saves fit settings for each printer, filament and nozzle, adding the right clearance for threads, holes, pegs and lids. Tell it how a print fitted and future parts adjust.
Other printer? See all printer brands
Your next part is one sentence away.
Works right in your browser. No CAD skills needed.
Open Millmetra Maker