Self centering idler bearing for Y-axis belt. by Peter_I 3d model
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Self centering idler bearing for Y-axis belt. by Peter_I

Self centering idler bearing for Y-axis belt. by Peter_I

by Thingiverse
Last crawled date: 3 years, 1 month ago
I did not like trying to make the belt run absolutely straight on the Y-idler. Using little pieces of paper on a steel printer just seemed wrong!
This made me think of old fashioned "crowned pullies".
They are "crowned", higher in the middle, and that makes the belt stay centered.
For a nice description, look here:http://woodgears.ca/bandsaw/crowned_pulleys.html
I belt sanded the bearing, to make a "crowned bearing" to use as an idler.
You have to be careful, but once it us done right, it works like a charm.

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