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Remixed Y axis belt tightener for A8, A6

by Radem, published

Remixed Y axis belt tightener for A8, A6 by Radem Sep 6, 2016
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Rhino

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Summary

Simhopp's belt tensioner was a little short for my belt and the idler pulley was lower than the original. So I modified it. I also made it two pieces so it could be installed without taking the frame brace off. I reused the two original bolts and nuts, but you still need a bolt for tightening.

Update: 10/10/16 Minor dimensional changes to make things go together easier.

Print Settings

Printer Brand:

RepRap

Printer:

Anet A8

Rafts:

No

Supports:

No

Resolution:

.2

Infill:

40


Notes:

;Basic settings: Layer height: 0.2 Walls: 1.6 Fill: 40
;Print time: 54 minutes
;Filament used: 3.145m 9.0g
;Filament cost: 0.18 / 914.36

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Sorry I'm a noob and just got my printer about 2 weeks ago. What does this do, how do you install it, and does it improve print quality?

Fits well in my Anet a6.
I wanted to change switch to a toothed gear, which doesn't fit will now because it's slightly wider than the original wheel.

looking at my spares for the Anet a8 , the hex inset doesn't match any of my nuts, they are to small

It does not fit well in anet a6

Maybe it's just me, but I ended up clipped off the piece of plastic that is directly under the belt, the end of the filet. It was causing some belt friction, but otherwise this is definitely the best solution for people who have this exact printer.

What kind of bolt do I need for tightening?
Can this be used with the regular belt or do I need a fiberglass belt?

I used a M4x25 bolt and nut. And for the belt I used the same stock belt, but I do loosen the tensioner after I'm done printing.

Can u post a photo looking down from above as I was wondering what is holding the two parts together. I'm assuming there are some M3 nuts and bolts involved. Also are you using anything to avoid the adjuster screw pressing too hard into the Acrylic frame.

OK, thanks for the update and photos

I've been thinking of adding a small cap for the end of the bolt, but have not done it yet.

What is that larger piece underneath of it? Looks like some kind of stiffener and I would like to try it out myself. Thanks

Frame brace for Anet A8
by Simhopp

Thanks for the info. I printed your tensioner and unfortunately for me it's just a "tad" too small for my frame. I might be able to trim off enough to make it fit without loosing structural integrity [the "legs" are about 3/4 a mil too close to each other to fit in the holes on the frame] I'm also having an issue finding a bearing that has a small enough ID that will be snug on the m3 screw and yet a big enough OD to match the stock bearing,

Anyway thanks for this :) and the info.

Hello Can this be used for the Anet A6?

What size screw and nut did you use for the tensioner screw?

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