Hi,
Been using my MPCNC with no problem. But yesterday I noticed that my X axis belts went slack. So I tightened them again. But now I have noticed that the belt has become deformed. Do I have the incorrect belt, and if not. What type of GT2 belt should I be getting?
Looks like it’s one with a steel core, they don’t work well for a CNC and break after a while. Use rubber only and you are good.
Your picture could be used as an example for the instructions as well why you shouldn’t use belts with a steel core. 
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Thanks for the info. I will order some rubber belts instead.
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You are welcome. 
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