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Prusa i3 Y axis belt holder

by kennethjiang, published

Prusa i3 Y axis belt holder by kennethjiang Jul 12, 2016
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Summary

This Y axis belt holder is for a specific Prusa i3 variant - ANet A8.

The original Y belt holder was laser-cut acrylic, which presented 2 problems:

  1. It held the Y belt at a level higher than pulleys at both ends, which resulted in excessive vibration when the plates is near the minimum of maximum of Y axis.

  2. It felt pretty brittle. I wasn't too sure how much I could tighten it. As the result, I was unable to tighten the Y belt tensioner sufficiently.

This design solves both problems.

You need to duplicate it in your slicer as you will need 2 sets.

It's designed to print without support. Please make sure you break it into individual parts, and rotate the parts appropriately.

The design is available at OnShape here so that anyone can customize it to their own size/need.

Print Settings

Printer Brand:

RepRap

Printer:

Prusa i3

Rafts:

Doesn't Matter

Supports:

No

Resolution:

0.2

Infill:

50%

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strange way to stack them, I would prefer them all flat

How do you make it individual parts in cura ?

I know this is an old post, but seeing as the creator of the part did not reply... When you open the file in Cura just rotate it so both parts are standing on their sides, then print. No need to split things, just make 2 sets.

Sorry somehow I missed the original question.

In Cura you can also do right-click the part and select 'split part'.

I forgot about that. That works well also, but I printed them on their side and it worked perfectly and solved the belt height issue. I find that on the A6 the belt could stand to be lowered a bit more though. I may remix this, but since it is a pain to install I will leave it as is for now.

Thank you for the spacers, they work very well.

EDIT: I forgot to mention that for the Anet A6 the screw holes are far too small, but that is nothing that a drill could not solve :-)

You are right that the holes are too small. It was one of my early designs when I didn't know I that holes would come out smaller than designed.

Just uploaded the revised version. Thanks again for pointing this out!

Great, thank you.

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