USM Haller cable mounts
thingiverse
These mounts screw directly to the USM ball connector using M8x6, or slightly longer, fine pitch (!) screws. Note that regular M8 thread will not work (really, I tried). Since this type of screw is very tough to find, I'm including a printable low-profile screw version rendered with the excellent Nut Job library (https://www.thingiverse.com/thing:193647) by Mike Mattala (thank you so much). This screw will require a size 4 Allen key. The cross, "T" and corner pieces need to be printed flat, but don't require supports (unless your printer or material performs particularly poorly with overhangs). Shown test pieces were printed in PLA, but black PETG is probably best (especially for printed screws).
With this file you will be able to print USM Haller cable mounts with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on USM Haller cable mounts.