LM8UU bearing holder

Yet another bearing holder for an LM8UU linear ball bearing.
Prints vertically to avoid the laminar separation common in this type of holder. These should be pretty rugged with 4mm side walls, dual 3mm machine screw mounts and dual 3mm machine screw clamps.

Use it stand-alone or incorperate it into your carriage design.

20 September - Added a one-screw version, identical except only one machine screw to secure the LM8UU.