Anet A8 solid Z coupler

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A simple printed replacement for the flexible Z couplers that come stock on the Anet A8. They may or may not increase print quality depending on how bad the original couplers were on your printer, and how straight your Z lead screws are.

They have a 5mm hole for the stepper shaft with a flat and a 8mm hole for the leadscrew. There is a 1mm section removed from the center of the cylinder so you can apply tension. It is best to use nylock nuts to prevent them coming loose.

I used 4x M3x10mm bolts for each and 4x M3 nuts (I didn't have enough nylock so mixed some normal M3 nuts with the nylock)

Printed at 25% cubic infill. Shouldn't need supports.