How much play should there be in the bed?
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My bed can wiggle pretty significantly around the X and Y axes. It's not side-to-side or front-to-back wiggling (the belts and tension are fine), but wiggling around the X axis and wiggling around the Y axis. It appears to be play between the center rails and the bearing wheels. It doesn't seem to negatively affect the print overall, but if the layer height is a bit low, and the tip drags, the whole bed wiggles around quite noticeably. Maybe this is just some play for safety's sake (or to allow for some margin of error when self-leveling?), I don't know, but I'm curious how much it should be wiggling.
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Dear @carmicp, well noted. I will transfer this to our engineer. Thank you.
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I suspect this is not uncommon. My hotbed AND print head were loose on the rails and needed adjustment.
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Dear @jim_s,
The hotbed board shakes, it is recommended that you tighten the eccentric nut under the hotbed board
https://www.youtube.com/watch?v=CjW03X5oDxk