TeleSAPR

TeleSAPR is a free parametric 2D/3D CAD program written in Go. Draw constraint-driven sketches, then build solids with extrude, revolve, sweep, loft, fillet (including rolling-ball), chamfer, shell, draft, mirror, patterns, wrapped sketches and screw threads. Edges are picked and saved by name, so they survive upstream changes. Parameters and expressions drive dimensions and features. Assemblies of linked parts support configurations, mates and mass properties.

Models can be scripted in Go, and an AI model can draw in the open document through MCP. It imports SolveSpace .slvs files and STEP, and exports STEP, STL, 3MF, glTF, SVG and DXF. It comes as a window and as a command-line tool (telesapr-cli).

It began as a port of SolveSpace and is now a separate project with its own .tlspr text format. It is experimental: it may have bugs and may break your files or scripts. It is built and tested on Linux, with Windows and macOS packages also provided. GPL-3.0 or later.