Hey all,

So, long story short not as long...

I have a prusa i2. I got tired of using the printed 'bearing guide' for my idler pulleys... as they would always crack and break.

I converted to using the bearings themselves, with 2 large washers on either side, to keep the belt on. This works somewhat ok... but I'm wanting to make it better.

I've been trying to find nice/metal 8mm bore idler pulleys to no avail. It seems everything is geared towards i3(?), with things being 3mm bore, 5mm(?) bore... but nothing 8.

I am currently using a T2.5 belt... I would even be open to switching to GT2, but with no 8mm bore idler pulleys of any kind... this wouldn't help.

Would appreciate all thoughts. Thanks!

Stacked F608zz bearings make nice 8mm bore idler pulleys that are 11 mm wide and will accommodate belts up to 10 mm wide. The diameter is 22 mm where the belt rides on the pulley.

Edited 1 time(s). Last edit at 11/24/2017 04:04PM by the_digital_dentist.

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Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

Thank you so much, that is exactly what I was hoping for! Just ordered some