An AI assistant that works inside your own CAD program
Milli Cad is a small panel that stays on top of your screen. Give it a drawing, a photo or a sketch with sizes, tell it what you need, and it reads, builds and checks the part in FreeCAD, F3D CAD, KiCad or SLDPRT CAD on your PC, inside one job folder you choose.
Download for WindowsSee how it worksWhat it does
Reads drawings properly
Renders the PDF, measures the drawn lines against the printed dimensions, reads the title block, and asks when a size is missing instead of guessing.
Builds in your CAD program
Writes and runs the scripts that create the part, the sheet, the assembly or the circuit board, then checks the result and fixes its own mistakes.
Checks before you cut
Reports sizes, mass, clearances and design-rule results in plain words with tick boxes, so you can confirm before anything is printed, cut or ordered.
Knows the traps
It carries a knowledge pack of real workshop lessons: profile tables, scan scales, thread and hole rules, sheet-metal bends, PCB routing habits.
Stays in its lane
It can only read and write inside the job folder you pick, and it asks before it runs a script or program. You can switch the asking off per chat.
Your files stay with you
Your drawings never leave your PC except for the parts the AI must read to do the job. The server keeps no chats and no files.
Download
One file, no installer, no admin rights. Download it, double-click it, create your account. New accounts start with a small free credit.
Download MilliCad.exeFirst-run guide
| Version | 0.2.0 (12 November 2026) |
| Works on | Windows 10 and 11, 64-bit |
| Size | 45 MB (44 808 826 bytes) |
| SHA-256 | 70347259d6920b10d23ee8877945c6efa8f57029e08c3ef1ec5de749162afaca |
Windows may show "Windows protected your PC" the first time, because the program is new and not yet code-signed. Click More info, then Run anyway. The first-run guide walks you through that, the account and your first job. All versions are on the releases page.
How it works
- Download the panel. One small program, MilliCad.exe, from the download section. No install wizard, no admin rights. Create an account with your e-mail.
- Pick your CAD program and a job folder. Milli Cad checks which programs it can find on your PC and tells you where to get the free ones.
- Add your drawing and say what you need. Click + Add or drop the files on the panel. Then: "build this bracket", "check this board", "give me a cut list".
- Allow, answer, confirm. Yellow cards ask before a script runs, green cards ask you the questions only you can answer. The result lands in your job folder and in your CAD program.
Pricing: prepaid credit, no subscription
You buy credit by card and each answer uses a little of it, depending on how much the AI had to read and write. The amount is shown after every answer, and the balance always sits at the top of the panel. New accounts start with a small free credit so you can try it first.
| Credit pack | Price | Roughly |
|---|---|---|
| Starter | R100 | a handful of parts read and built from drawings |
| Workshop | R250 | a week of regular use for one person |
| Studio | R500 | larger assemblies and boards, longer sessions |
| Shop | R1000 | a small team or a busy month |
Prices in South African rand, excluding VAT. Card payments are handled by Paystack. Unused credit can be refunded within 14 days of purchase; see the terms. The usage figures are indications: a short question costs under one rand, a complex assembly built and checked from a multi-sheet drawing can cost tens of rand.
Privacy and safety
What leaves your PC
What you type, the files Milli Cad reads for the job, and the results of the scripts it runs, sent to the AI provider through our server so the AI can answer. Under the business terms we use, the AI provider does not train on it.
What the server keeps
Your e-mail address, your credit balance and usage, token counts per answer, and payment references. Not your chats, not your drawings, not your files.
Your CAD licence
FreeCAD and KiCad are free. F3D CAD (.f3d) and SLDPRT CAD (.sldprt) need your own licence. Milli Cad never installs, unlocks or activates a paid CAD program.
A tool, not an engineer
The AI can be wrong. Milli Cad shows its work and asks for confirmation, and you check every size before you cut, print or order.
Contact
Milli Cad is in its first release. If something does not work, if your CAD program is missing, or if you want us to watch your first job with you, send an e-mail with your CAD program and what you build.