Ultimaker feeder upgrade
by am001, published
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Under "MADE ONE" there is a photo of a broken bearing (obvious) and the broken plastic center (if you look carefully)
Prnted well enough for me. The outer wall of the roller is only 0.5 mm thich, so it is very easy to crush the bearing by overtightening the screw. It is a delicate balance. Also, the plastic center for the bearing can break.
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This is a fully printable upgrade of all 3 parts of the assembly, whilst keeping faithful to the Ultimaker original, using the outer shape taken from the lasercut drawings published.
You will need a 6mm ID, 10mm OD, 3mm wide bearing, this cost me Â£1.99 on eBay.
This thing really works. It reduced the friction considerably, meaning less pressure needed, less teethmarking of the filament, less jamming of the deformed filament in the bowden, less grinding the filament (none in fact since I fitted it) and much better, quieter retraction performance.
Modelled in Siemens NX8, printed 0.1 slice, 100% fill using Cura. No support needed.
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