X Axis Belt Tensioner
thingiverse
My old belt tensioner that I used to have fit just a little too loose in the slot so I made this one and it fits snugly in my Anet A8. I printed mine out on the side which required supports, but you can try it just the way it is. Let me know if I need to tweak something for you. I should also mention that this was used with the cap from X-axis Belt Tensioner (long remix). https://www.thingiverse.com/thing:1999669
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