I really liked thejim's solution (http://www.thingiverse.com/thing:40101), but i figured i could lasercut a very similar solution and keep the printrbot jr. looking more consistent. Here are the files. I was able to use the lasercutter at the Baltimore Hackerspace. I also recut all of my wood panels, minus the extruder, in acrylic because it looks cool.
| PrintrbotJr_Y_belt_tensioner_for_lasercutting.3dm | 97.4KB | |
| PrintrbotJr_Y_belt_tensioner_for_lasercutting.dxf | 39.1KB |
