Printrbot Jr J-Head Platform

When my Ubis hot end died I replaced it with a cheap, Chinese V6 knock off and converted to a Bowden extruder at the same time. The J-Head adapter I've been using works OK, but I wanted something better. This will replace the entire extruder platform on my Jr. As an added bonus, once it's done there will be less wood to warp.

And yes, I realize that there are probably not many people left still using a Printrbot Jr.

V1 turned out to not fit my hot end correctly. v2 was a really tight fit.