Tools for framebuilders
Generate printable cope templates for tube joints. Round, elliptical, tapered, offset — with 1:1 scale PDF export. Preset bicycle joints or enter your own dimensions.
Open geometry sketchpad. Explore and compare bicycle geometry interactively.
A complete parametric bicycle frame design tool. Geometry, tubing, fit, clearance, miter templates, workshop drawings — built for how framebuilders actually work.