Use as an experiment. Strongly recommend buying metal ones ;)
After doing some tests. The original ones did break on the "lips" going to do test for the ones called "Thicker Lips" (Removed the old files)
I recommend either the 16 teeth or the 24 teeth ones for testing
So the thicker lips wont fit for example the default Y or X axis on an Anet A8. However it will fit on some X axis belt tensioners and maybe on some Y Axis modifications for belt tensioner.
Consider this still experimental and for testing purposes, not a direct replacement of any part.
September 2 2017 - Added different variations. Hopefully the file names explain which is which. Ask in the comments if not sure.
NOTICE!!! Be aware of supports when printing this. Specially when printing the bigger lips versions.
So I saw this around Thingiverse, but a user asked for a version of this idea with some walls to the sides. I guess this should work, and at the same time help making the piece stronger.
If you want to give it a try, please do so, and comment/share what you think.
Photos and feedback always welcome.
NOTE: All versions have a lip of 1.08mm
MODELS OPTIMIZED TO PRINT WITH 0,12mm Layer height