Real engineering standards, made simple. Design mechanical parts that actually work — verify them against the same methods professionals use, then export print-ready files. No engineering degree required.
Each tool turns a hard engineering calculation into a few sliders and a download button. Members get access to every tool — current and future.
Polymer spur gear designer — VDI 2736 based. Design, verify and export printable gears.
Quieter, higher-load gears with helix-angle control and axial-thrust estimates. Next on the bench.
Size shafts for torque, bending and fatigue — with keyways, fillets and a safety-factor check.
Enter what you know — load, speed, size, material. Plain inputs with clear explanations, no jargon you don't need.
The tool runs the real engineering checks (stress, safety factor, temperature) and tells you if your part will hold.
Download a clean STL for your 3D printer and a PDF engineering report documenting every result.
A short walkthrough of the Spur Gear Designer — from first slider to printed gear.
Walkthrough coming soon
One membership unlocks the full toolbox — and everything we build next. Sign in with your Patreon account to launch any tool.
Sign in & launch →