The file 'OW XR MagHandle, Print In Place 3D Printer Model' is (step,stl) file type, size is 2.3MB.
Print in place top-half, DIY Mag Handle.
For left rail, with the motor cable going forward. (Right side wire harness interferes)
Use these magnets: https://www.amazon.com/VSKIZ-Refrigerator-Neodymium-Muti-use-Whiteboard/dp/B0C697TTK4/ref=sr_1_3?crid=3QQ9MGI5J2LP&keywords=10mm+x+3mm+neodymium+magnets&qid=1702426901&sprefix=10mm+x+3m%2Caps%2C147&sr=8-3