Bike crankarm end protector (fits White Industries R30) 3D Print Model

Summary
Protective cap for end of bicycle crankarm, to prevent damage from rocks, curbs, etc. This cap fits the White Industries R30 crankarm (http://www.whiteind.com/r30) – it may also fit the G30 & M30, but I haven’t confirmed that the arm thickness is identical.
Print Settings
Printer Brand:
Printrbot
Printer:
Printrbot Simple Metal
Rafts:
No
Supports:
No
Resolution:
0.2 mm layers
Infill:
solid
Notes:
Printed on heated bed at 50C, in black PLA.