Tools and toys for people who care how things are made.
I'm Justin Gray — software developer, former NASA aerospace engineer, and machinist. I build vibe coding support kits for people who code with AI, software for the manufacuturing industry, fidget toys for people who appreciate precise machining. Which one are you here for?
Everything I'm working on

Vibe Code Starter Kit
For Sale -- A kit to help you vibe code like me!

Fusion Add-in Vibe Code Kit
Build html based Fusion add-ins that use the Fusion apis

Fidget Piston
Pneumatic, fun to play with, and makes a super satisfying pop.

SwissEdit
Free web based code editor for multi-channel (swiss) CNC machines

Photo Gallery
A gallery of machining and shop shots.
My Track Record
- Developed Toolpath's machining AI algorithms
- Aeropropulsive design for next-generation aircraft with NASA's OpenMDAO
- Wrote open-source jet engine design software: pyCycle
- Biked up Mt. Mitchell (11,258 ft of climb)
What I read (and why you should too)
These are the books that shaped how I think about precision, software, and making things
- Foundations of Mechanical Accuracy: IYKYN
- Gingery Series on Building Your Own Machines: A bit dated. Today I think we'd do epoxy granite instead of cast aluminum, but still a fascinating zombie apocalypse / rebuild society planning guide.
- The best numerical optimization textbook: Very mathy, but if you want to really understand how to do it, this is the place to start.
- Suits: Speaking of Research — R&D in the 1950's and 1960's: Hear someone talk about holding one of the first ever man-made diamonds in his own hands. This book is very hard to find, but you can read about Dr. Chauncy Suits online









