Well the horse is back up and running. The freshly printed parts are to replace the extruder tension block to eliminate the old fan holder. They came out perfect and snapped together just fine.
Story:
I had swapped the kevlar line out for the GT2 belt. I had already extended the X-axis using these parts:
As luck would have it, someone posted a remix to support GT2 belts with these parts:
Lessons learned:
The face plate print that holds the pulley has to be spot on, no over extrusion, etc. cause the tolerances are tight when inserting into the Simple’s frame. Fortunately I got this right cause it’d be a nightmare to have to go back and reassemble to print again.
Don’t be like me and install the plate to only then realize the pulley and bearings can’t be installed. Place them on the mounting plate before installing into the PB frame.
Thread the belt through before installing the plate as well. What a PIA to feed through otherwise.
Use left over 5mm screws from bed extension job to hold down the bearings.
I had to drill a new hole in the metal brace to hold the end brackets because the new parts have holes that are slightly off from the original parts.
Sand about 1/16" off the inside edge of the lower print bed cause it’ll otherwise rub against the pulley.
Question for everyone- what should the tension be like for the belt? I originally had it pulled pretty tight but now it I’ve loosened it a little so that it’ll have some minor deflection.
