Ender 3 Profile Filler
thingiverse
Alu profile filler to prevent debris falling into it. 141.4 mm for the front left side. 93mm for the back left side if needed. 30 mm and 41 mm is compatible with cable chain holder: https://www.thingiverse.com/thing:2920060 Here the filler will keep the chain holder from sliding. The fit is a tight pressure fit. I was able to press the filler into place without any sanding or disassembly.
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