Topic: Solidoodle 4 CoreXY rebuild (completed)
Just completed my first print after a total rebuild of my printer, I've been working with the design some nights a week the last couple of months. Quite happy with the results so far, very fast, much less vibrations and noise and great print quality (well, on the first part that is, which is a cooling duct for the filament fan).
It's an unusal CoreXY design in that it uses some extra idlers to get the motors and belts in the back, so they don't block the door in front. This probably adds some extra drag to the belts, but it can reliably do 300 mm/s at 0.8A per stepper, so it doesn't seem to be a problem.
The new bed is kind of a stand-alone mod, and a lot more rigid than the orignal.I've also added a MeanWell 30A 15V PSU, which heats up the bed much quicker than the old 12V ATX PSU.
The design uses a bowden extruder, going direct extrusion kind of defeats the purpose of going corexy, which is to reduce the moving mass.
E3D v6, bowden feeding, airtripper extruder, mk8 gear.
LM8UU X & Y carriages. GT2 belts and pulleys, bearings on all axles.