AI STL generator
The AI STL generator for parts that fit
Describe a part or snap a photo. Millmetra generates a print-ready STL, exact to the millimetre.
What an AI STL generator does
An AI STL generator turns your idea into a 3D file a printer can use. Millmetra takes a plain-language description, or a photo with a coin or ruler for scale, and builds an STL ready for your slicer.
Exact sizes, not guesses
Many AI model tools make shapes that look right but print wrong. Millmetra builds every part from millimetre measurements, with real screw threads, holes and clearances tuned to your printer, material and nozzle.
Try prompts like
“A wall bracket for a 25 mm pipe, 4 mm thick, with two M4 screw holes.” · “A 60 mm round box with a screw-on lid.” · “A mount for an Echo Dot that screws to the wall.”
Questions people ask
What is the best AI STL generator for 3D printing?
- Look for one that builds to exact measurements, not just a nice-looking mesh. Millmetra turns a plain-language description or a photo into a print-ready STL with exact millimetre sizes, real screw threads and fit settings tuned to your printer and material.
Can AI generate an STL file from text?
- Yes. In Millmetra Maker you type the part you need, for example “a 60 mm round box with a screw-on lid”, preview it in 3D, tap any area to change it, and download the STL for your slicer.
How is this different from AI 3D model generators?
- Most AI model generators make decorative shapes whose sizes are guessed. Millmetra is built for functional parts: every dimension is exact, holes and threads are real, and parts can be checked to fit together before you print.
Can I make an STL from a photo?
- Yes. Photograph the object next to a coin, card or ruler for scale and Millmetra measures it to build a holder, mount or replacement part.
Your next part is one sentence away.
Works right in your browser. No CAD skills needed.
Open Millmetra Maker