Semi-Auto Rubber Band Gun Plates for 120x120 build platforms
by MacGyver, published
Liked the original but had to slice it up to fit on my TOM's 120x120 build area.
Just like the original use 1/4" dowels for assembly. Also prepare to sand the parts to make them fit well.
The dowels I uploaded are just smaller than 1/4" but if you drill out the holes to 1/4" they fit snug. Drill out the other holes to 17/64" and everything should fit together.
If you have problems with the ratchet wheel try printing out this derivative http://www.thingiverse.com/thing:39464
I just used superglue to attach the barrel. It was fairly flat and only required a little sanding.