Linear Sander

thingiverse

This project involves creating a "brush" for the Trinitylabs Aluminatus' aluminum top plates, using 3/8" rod on main rails and 5/8" rod on vertical sliders. Sketchup files are provided for modifications; the printed 3/8" bushing is similar to LM12UU dimensions. The bushing design was derived from Triffid Hunter's printed LM8UU, while other designs come from Google Sketchup. Future plans include automation and an updated X-car setup with sanding block spring tensioning. To assemble, print four Y brackets, one X-car, two Y-cars, a plunger, plunger bottom, and two clamps. Use 3/8" stainless rod for main rails, square the frame, and secure with screws. Adjust printed bushings if needed, print parts with bushings in PLA. For vertical adjustment, use 5/16" or 8mm rod with M3x10 socket head screws for clamping. Wood screws hold down brackets, and the setup works well with Scotchbrite pads or belt sander belts over pads.