Anet A8 upgraded Y-axis tensioner arms for toothed idler

by jbrandonferg, published

Anet A8 upgraded Y-axis tensioner arms for toothed idler by jbrandonferg Feb 22, 2017
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I modified these tensioner arms to work with aluminum toothed idler pulleys. The ones I used can be found here: https://www.amazon.com/gp/product/B01BTTER04/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

I used the 3mm 20 toothed ones.

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For those who are having trouble with all these types of brackets getting them to not break in tightening down the 3M screws I found a pretty good solution...Build your own as spec'd but do not extrude out the NUT whole or the Screw Guide instead dimension and extrude just the screw holes to 2.72mm diameter leaving the rest solid as well as the length needed, which works very well for the standard 3M screws in use. and as long as needed. I would suggest though 100% infill with these if printing with PLA. It will then have the hold yet give for the screws. Worked for me.

The stl files seem to be broken in Slic3r

I have only ever opened it in Cura. Can you open the original in Slic3r and see if you still have the problem?

Where can I find the other parts for this tensioner? Thanks!