by RetireeJay » 2018-Sep-Tue-10-Sep
I never knew Printrbot made a CoreXY printer! But evidently they did. No one on this forum has ever discussed the Model 3 before. But there's a person going by the Thingiverse handle of "ururk" who has one, and he/she designed some improvement parts that are posted there; maybe you can find a way to get in touch with that person and see if they can point you to resources for building and commissioning the printer.
https://www.thingiverse.com/thing:2772473
Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
"My next printer is..." Prusa i3 MK3, upgraded to MK3S