e*thirteen XCX Race Crank Arm Bumper Protector e*13 e thirteen ethirteen

A custom fit crank arm protector/bumper for e*thirteen XCX Race carbon cranks.

I had tried a few, including one for another e*thirteen crank that, even with some creative scaling, just didn't fit right. So, I broke out the calipers.

I printed in TPU at .2 layer height with 3 walls and 10% gyroid infill using tree supports. Intended to be a snug slip fit when printed from TPU. May need to be scaled up slightly for rigid filaments.

Exact fit model: For best fit, print in “exclusive” mode (Cura) or equivalent; otherwise, you may need to adjust horizontal expansion and/or scaling slightly.