Orca Slicer split the file into objects, all parts now lay flat on the bed. Test print in PLA, slow speed. Threads are too tight. I used M10 x 1.5 tap to clean out the hole in the small bar, M6 x 1.0 tap to clean out the hole in the treaded handle. The foot screwing into the bottom of the handle should be a ball joint. The angle is too large/too much movement in the bar.