PipeFit – Browser-based parametric pipe connector generator

Generate pipe adapter STLs in seconds without opening CAD for half an hour.

Problem

Connecting two pipes of slightly different sizes should be trivial, but every time it means opening CAD and spending more minutes tweaking connectors and tapers than the task deserves. The maker of this tool kept opening CAD and finally built the browser tool he wanted: specify diameters, lengths, and bends, then export STL/3MF.

Solution

A pure browser-based parametric modeling tool where users input pipe diameters, lengths, and bend angles, see a live 3D preview of the connector and taper transitions, and export STL or 3MF files ready for 3D printing. No CAD install, no signup required.

Users

Mechanical engineers, hardware makers, 3D printing hobbyists, small repair and fabrication teams.

MVP

Parameter form + live 3D preview; support straight, bent, and reducing connectors; STL/3MF export; preset pipe diameter library; all processing local, no model uploads.

Revenue

Free base tier plus paid one-off or subscription for advanced export formats or batch generation; team plan for shared preset libraries.

Why now

Browser CAD capabilities (WebGL/WASM) are mature enough that an indie developer can build a razor-thin pipe connector generator without a full CAD ecosystem.