Anet A8 Toothed Idler Pulley for 8mm bearings
by tednv, published
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So the original design was a problem for me because the original bearings had a skirt sticking out that made the width about 2.5mm wider than original width. I did get it to fit into the holder, but the fit was very tight and the pulley had way too much drag and bed was hard to move. I did not have any 10mm bearings, but I did have a bunch of 8mm bearings from old broken brushless motors, and these are fairly cheap and common for anyone that's into RC or drones. So I made a slight modification to the original to allow for using 8mm bearings and for me this worked out perfectly. The original design would be better if you have a pair of 10mm bearings available, but if you have some old brushless motors or order a bunch of 8mm bearings this will work for you
Like with any small part, be sure to print with a skirt so that the nozzle is primed when it starts printing the part. The first few prototypes I had to do some sanding, so I adjusted bearing opening so bearings should go in without sanding. You may need to trim slightly the hole at the first and second layer with xacto knife, extrusion at those usually isn't as accurate. I printed with PLA
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Anet A8 Toothed Idler Pulley for 8mm bearings by tednv is licensed under the Creative Commons - Attribution - Non-Commercial - Share Alike license.
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