Prusa I3 - Y-Carriage Reworked

thingiverse

Through testing I've found that much of the jerk wobble in printing with higher accelerations comes from the acrylic y-carriage vibrating when the y axis movement changes directions. I had an idea that because the bearings were places so far from the bed level screw holes it gave the carriage the ability to vibrate up and down. I designed a new y-carriage where bearings were places as close to the bed level holes making it nearly impossible for the bed to vibrate up and down on sudden movement changes. Also made use of four bearings instead of three. This way all four corners of the bed is as stable as can be. Additionally the bed height is 8mm with the screw holes being very tight fit to M2 screws. With this addition the screws are very tightly fixed in the carriage. NOTE: The RadialBearingHolder file is for creating your own bearings using 623ZZ radial bearings. I use this setup and it has worked wonders for my system in terms of printing fast, precise and with high acceleration. Print Settings Printer Brand: RepRap Printer: PLA Supports: Yes Resolution: 0.3mm Infill: 10% Notes: Print however you like. Because it has to provide stability I've printed it with 4 perimeters.