Vevor rotary attachment adjustable plate
thingiverse
The Vevor rotary attachment is pretty well-built and offers a lot of adjustments, but the unit I have did not have the front and rear wheels aligned properly. This causes the object to rotate off axis and affects the laser engraving. This plate allows for a few mm of adjustment to alignment the front and back wheels to fix the issue. This might not affect all units, I got mine from Amazon: https://www.amazon.com/gp/product/B09G2D53S2/ref=ewc_pr_img_1?smid=A2LENQIUQD99WB&psc=1 For the money, it's a good unit. Not as nice as the Rotoboss, but it's about 90% less expensive. :)
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