Ender 3 Y axis linear guide upgrade
thingiverse
This is an upgrade of the Y-axis to Ender 3. I used a MGN15H 300mm linear guide for greater bed stability. https://www.aliexpress.com/item/32806622073.html?spm=a2g0s.9042311.0.0.45374c4d7UTpir To drilling holes for MGN block I used own Drill template. The stepper motor holder and belt tensioner are designed to keep the belt in line with the plate. Stepper motor holder is made of ABS for temperature resistance. The belt tensioner is made of PLA. The guide rollers are made of two parts (PLA) and a bearing of the original wheels is inserted inside. These parts are glued together. I used 1 steel guide pulley from the original belt tensioner including two plastic spacers. The belt must be longer, the original belt cannot be used. The limit switch holder remained original.
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