Ender 3 _ spool bearings including steel balls
thingiverse
The bearing featuring 9 balls 8mm wide from erasable felt cartridges is engineered to prevent excessive wire pull on the spool and eliminate saccades when the spool slides along the Ender 3 spool beam. These balls roll directly onto the spool holder beam. If this information has been valuable, consider donating what you deem it's worth through my paypal.me account. This will help offset the time invested in design.
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