| 1 | 20,868 | 19,306 | geometry | Geometric primitives and algorithms for Ruby |
| 2 | 51,734 | 69,612 | engineering | Tools for Mad Engineers and those who want to be |
| 3 | 53,806 | 69,612 | jsgf | A parser and DSL for JSGF files |
| 4 | 61,694 | 69,612 | dxf | Read and write DXF files using Ruby |
| 5 | 63,066 | 35,076 | audio | Access all of your audio devices from the comfort of Ruby |
| 6 | 93,377 | 69,612 | stl | Read and write STL files |
| 7 | 93,403 | 69,612 | fasteners | Models for Nuts, Bolts, and Screws |
| 8 | 99,874 | 69,612 | eaglecad | Everything you need to bend Eagle CAD projects to your will |
| 9 | 104,605 | 69,612 | gerber | Tools for working with Gerber and Extended Gerber files |
| 10 | 117,619 | 69,612 | optical | The home of all ruby optics |
| 11 | 117,960 | 69,612 | clips | The C Language Integrated Production System (CLIPS), but in Ruby |
| 12 | 124,100 | 69,612 | canvas | Fingerpainting in Ruby, without the fingers, or the paint |
| 13 | 142,151 | 69,612 | fritzing | Read and write Fritzing sketches |
| 14 | 142,506 | 69,612 | manufacturing | Tools for generating manufacturing drawings and related files |
| 15 | 156,752 | 69,612 | speech | Adventures in the Land of Speech Recognition |
xmisao