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Prusa i3 x axis belt holder

by kennethjiang, published

Prusa i3 x axis belt holder by kennethjiang Jul 11, 2016
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Summary

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

This inexpensive variant is in general solid out of the box, with only a few problems. A weak X axis belt holder is one of them. This prevents you from tensioning X belt enough.

My design is inspired by this thing: http://www.thingiverse.com/thing:926794

The design is available at OnShape here so that you can customize it to your specific size/need.

Print Settings

Printer Brand:

RepRap

Printer:

Prusa i3

Rafts:

Doesn't Matter

Supports:

Doesn't Matter

Resolution:

0.2

Infill:

20%

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Doesn't fit for my Anet A8 (May 2017, Gearbest). The holes for the screws are not in place, like 4mm away

I've tried this twice and every time the teardrop shapes just break off, letting the belt come loose. It's also pretty hard to get a tight fit with the odd way you have to loop the belt around. Not a fan of this design.

The same thing happened to me. I upped the resolution and fill and slowed down the print and it came out better.

i had the same thing happen.

Mar 31, 2017 - Modified Mar 31, 2017

It appears this has the same mounting setup as the Hictop Prusa i3 3DP-11. Printing it now and I will let you know if it works, so you can add it to details.

I'm sharing my feedback about this part. I've printed it in PLA, but when I had print in ABS the heat produce by the hotbed made the x belt stofen !
be carefulabout the material ;)

Feb 25, 2017 - Modified Feb 25, 2017

The mounting holes were a little off on the one I printed, - but most likely due to my particular print settings and such. I'm talking maybe .2mm off, so that's easily my fault.

I printed in PETG, and to be honest, it "snapped" right into place, and it's not going anywhere, anytime soon. I'm planning to leave in place without screwing into place.

I had to sand it down because of the belt didn't ride above the print smoothly. So, again - most likely due to the way I printed it.

Hey, This design is perfect but unfortunately did not fit my Anet A8. The screw holes are about an 1/8 inch too high to screw into the extruder motor bracket. It may fit other A8s but not mine which was purchased in november 2016 from gearbest. Thanks again for the great design though. I may try a remix

Looks like you made a remix that works for you! Liked and collected it!

Jan 19, 2017 - Modified Jan 19, 2017

Kennethjiang thank you for this! What length M3 bolts do I need to get to secure this to the carriage?

20mm. I think they came in the kit but I'm not 100% sure.

Thank you very much!

Igrek2000... I'm getting ready to print on for my A8, what about this print makes it not compatible. Sounds like others have used it ok.

I may be a little dim, but I cannot tell from the pictures how to actually use this to tighten the belt when it is getting loose. Can someone please explain?

This is just belt holder. If you want X axis tensioner, check this out: http://www.thingiverse.com/thing:1669312

Prusa i3 X axis belt tensioner

Perfect! Didn't even mount the stock way. I printed this on another printer and put it on my A8

Fits perfect on my A8
A lot easyer to (un)mount the belt.

!!! Not for Anet A8 !!!

Hmmm, my 3d printer is an Anet A8 and it fits my model perfectly. Not sure why it didn't work for you. I just added a link to OnShape design. If you want you can customize it based on your printer model.

Probably, they use a little bit different linear bearing shape in new models...

Thanks
i made one and it's perfect
i must take picture for the "I Made One"

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