I have used my MPCNC about a dozen times or so in light usage over 3 months. (I am estimating around 20 hours run time) I went to do some adjustments (having trouble squaring large cuts) and noticed that the roller block is cracked at the single bearing point. This is v1 of the part purchased on this site. Any thoughts as to why this would happen? I checked my other blocks and they look OK. I definitely did not over tighten the bolt.
Also, will this cause problems as I continue to use the machine? I do not have access to a 3D printer so printing a replacement is not an option.