EVO-3D1
By Evolution3D
Free
It's free to download
Videos
Images
Documentation
Technical
PLA Filament printed at .3
2 motors (edited 11-03-2016 had the wrong motor listed.. sorry about that.. the one I listed will still work it just won't last long.. use the one below)
https://www.pololu.com/product/611
8 zip ties
1 rubber band
4AA Batteries
1 plastic AA battery holder
https://www.pololu.com/product/1154
Free