I'm Petr — a mechanical engineer with 10+ years in medical devices and expedition vehicles. I started InterPetr to offer product design, DFM, and custom AI tools for engineering teams.

The Design Review tool is a free, open tool I built because I got tired of catching the same drawing mistakes at 2 AM. It runs Claude against your engineering drawings and STEP files, checks DFM, GD&T, tolerances, and standards, and gives you a structured report in seconds. No sign-up, no paywall — your files stay in your browser.

Building and hosting these tools costs time and money. If you've gotten value from them, a coffee goes a long way toward keeping them free and funding the next one. Thanks for the support.