If you know why this happens pls help. model Ender 3.
this post was submitted on 26 Sep 2026
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I have a digital dial indicator with a printed mount that just hooks onto my printhead.
thats the exact one I have.
it's helpful in debugging issues like this and attempting to identify if the issues are with your printbed or your gantry.
if the issue is with your printbed surface, the dial will change greatly at seemingly random places across your printbed.
if the issue is your gantry, it will consistently change regardless of where its at on the bed in the y position. the x position will likely result in slop because thats the direction of travel for the gantry.
if you see problems on the y position travel, it's likely an issue with your printbed track/travel. tension your belts or tighten any collars.
it can even help debug some z travel issues if you can get creative.
highly recommend getting one.