MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now


Anet A8 X Axis Tensioner

by Luke_O May 3, 2017
Download All Files

Thing Apps Enabled

Please Login to Comment

Fantastic! Thank you very much. Quick print out using PLA+, 10 minutes to fit and works like a bomb. Substantial improvement in print quality. Now both belts (did a Y tensioner as well) have good solid tension :-)

One of the first upgrades I printed for my Anet A8, significant improvement!

worked like a charm! all fits together snug no play in any of it m3 nut fit perfect what tolerences did you put in your design? thanks:)

Love this design, it’s the best I’ve seen yet. Will print soon. Thanks!

Really cool design, but very fragile...
I might try to redesign it so it's stronger.

Printed and tested this morning : Fucking PERFECT !

Awesome I can't wait to install I'm not able to use the other tensioner available because I built an enclose that doesn't give room to add these external tensioners I would have to modify the enclosure and I really don't want to, I'm glad I found your design wich sits in the inside, hope it works thank you :)

Thanks ! This works nice. It was easy to install with some space m3 screws and no need for a longer belt like with the other ones.

I mounted it last night and it works flawlessy. I've printed it in PLA with 4 perimeters and 100% infill in about 20 minutes, so it's a really fast print but it works really well. My printing quality did get a lot better. Thank for the model!

Used this for months, and then it failed last night during an overnight print - the X belt totally came loose. Led to a complete mess of filament everywhere, and a nearly ruined hotend and power supply. If you're going to use this I strongly recommend not printing it in PLA, and if you do print it, print a minimum of 3 walls with plenty of infill. Not a bad model at all, but save yourself the hours of cleanup I just had to do and don't skimp on the plastic with this one.

This is exactly the kind of tensioner I expected to find when first looking it up, but only found those weird ones that extended out the size. Very happy to find it! Had to do a bit of sanding and filing to get the grooves to fit but that probably says more about my printer than the model itself. Only other thing is, the belt just barely fits between the bearing block and the tensioner. Not sure why, if I have a different extruder bracket layot or something, but I think it makes a bit of a noise when moving. Not terrible, but may wear down the belt (I have the GT2 fiberglass belt and extra of it, so if it somehow does it won't be too bad). But I'm wondering if anyone else has had this issue? I was able to file down the side that hits the belt and make it a bit better but its still there a bit.

Been using this for a few weeks now. Perfect. Simple and works great.

Really nice design man. Keep it simple! Works great. Only thing that might make it better would be a dovetail, but really, it doesn't need it. The tension keeps it inline.

Perfect. I will make it tomorrow. I had seen many prototypes, but this is simple and seems to be really effective. I love it.

Comments deleted.

What a great idea!! especially for people who don't want to spend out more on parts etc.. now printing mine and will install soon

Pretty good so far. Improved a lot print cuality

improved my printing quality a lot. thanks!

a t -grove for the slider would be pretty nice.

I didn't feel there was enough room for a t-groove on the slider side without really shifting things around. If you would like I will load the models and you can modify? Let me know.

super easy to print, great design! :D

Looks good. My x Axis rods extend out 1.5cm on the right side so none of the other tensioners will work. I'll give yours a try.

Thank you for the simplicity! Much needed!

FINALLY. I have been looking all over for a tensioner that did not require any extra screws or getting a new band.THIS DISEIGHN IS AMAZING TY SO MUCH

Not exactly sure what you are asking but yes, its still works. I've been running with it for the last few months and I've had to tighten it once. Couldn't tell you if it was from belt stretch or or the bolt loosening, either way I'm happy with the outcome.

Looks neat, much better than the original fixtures. Does it come loose over time due to vibrations?

I've only had it on my machine for about 10hrs of printing and haven't had any noticeable relaxation from the tensioner screw backing out. This could always be fixed with nut that has a nylon insert. I think I've seen those at my local hardware store.