by: jreinhardt; status: Work In Progress
The aim of BOLTS (acronym for: BOLTS is a Open Library for Technical Specifications) is to build a free and open-source standard parts library for CAD applications. It does so by providing a common database that can be utilized by different CAD applications.
There is also a development blog.
by: mkeeter; status: Working
"kokopelli is an open-source tool for computer-aided design and manufacturing (CAD/CAM).
It uses Python as a hardware description language for solid models. A set of core libraries define common shapes and transforms, but users are free to extend their designs with their own definitions."
by: Gyronictonic; status: Working
"3DPrintMi combines the minimalistic, open frame style of the Printrbot/Wallace with the fixed Y Gantry system of the Mendel. The printed parts are designed to be produced rapidly, efficiently and assembled easily. A primary goal for this printer was to incorporate the maximum number of printed parts, thus enabling self replication. Built from the ground up, this RepRap requires very little tooling and does not need specially made parts (e.g. lasercut pieces) for it to function."...
by: Nicholas Seward; status: Working
"Simpson is a experimental grounded delta robot 3D printer prototype."