Remixed Y axis belt tightener for A8, A6

by Radem, published

Remixed Y axis belt tightener for A8, A6 by Radem Sep 6, 2016
27 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


Design Tools


Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

55455Views 10698Downloads Found in 3D Printer Parts


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:



Anet A8










;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

More from 3D Printer Parts

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

Treatstock is an online platform that offers decentralized manufacturing services such as 3D printing and CNC machining for clients all over the world. We offer free and instant access to comparati...

App Info Launch App

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App

Nice design, works great. Made one out of PLA and it broke so I was lucky I had a spare. Keep at least one spare part around for sudden breaks.

Easy to print, fits perfect ;) Thanks.

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?

If you can't see what it does by looking at it, you dont need/want it.

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?