Ender 3 NG Simplified Top Rear CoreXY/Motion

First off: Shout out to the creators of the Ender 3 NG. Thank you for creating this conversion and providing the BOM and printed parts. Info on E3NG project: https://rh3d.xyz/ What is this: The goal of this rework was to simplify the design. I had trouble with my belts rubbing on things and wasn't able to see what was going on inside. This design allows us to see and inspect all pulleys involved. This rework replaces 3 parts with 1 for each rear corner. This replaces : frame_top_rear_A_right_bottom frame_top_rear_A_right_middle frame_top_rear_A_right_top frame_top_rear_B_left_bottom, frame_top_rear_B_left_middle, frame_top_rear_B_left_top This is for an Ender 3 conversion. Might work for other conversions!