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Adjustable Belt Tensioner/Tightener and Belt Tie (Tevo Tarantula)

by supasorn, published

Adjustable Belt Tensioner/Tightener and Belt Tie (Tevo Tarantula) by supasorn Sep 20, 2016
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Summary

A simple, adjustable belt tensioner + a belt tie to replace the cable tie.
The tensioner requires an M3 screw. The screw hole is tight-fit and should provide more than enough tension to hold the screw. Designed to be printed at 100% scale.

Use higher wall line count (shells) & high infill for maximum strength.

The calibration cube in 3rd photo was printed @0.1mm layer height with properly tensioned belts and a Dual Z mod https://www.thingiverse.com/thing:2163949

sketchup/fusion360 file is attached in case adjustment is needed.

Update 3/11/17 : New hole, added fillet.
Update 10/23/16 : increased thickness for screw holder and legs.

Print Settings

Rafts:

No

Supports:

No

Resolution:

0.2

Infill:

50%

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This work really good on my Anycubic I3 Mega ultrabase. Printed the standard one but used the shortest screw that would get the job done to clear the extruder shuttle.

Used on both the x-axis and y-axis belts and effectively eliminated my current issue with zits from overshooting in places.

Great simple design.

Fits perfectly for my Anycubic i3 Mega on Y belt. Works great!

Well done. Big 2.8 works well with Flashforge creator pro.

Hi,

Works fine with the new Anet A6 ?

Love this thing. I was surprised how simple it was to remove the spring tensioner and install this one. Took me less than 10 minutes, keeps the belt nice and tight, and completely fixed my Y axis shifting problems. Thanks for making it!

Will this work for the y belt too?

Yes. Just tilt it when screwing.

this also works perfectly with the Anet A8, just make sure you put it on the lower part of the belt close to the extruder like this:

https://i.imgur.com/524nnF7.jpg

Thank You. It Works perfectly. Very stable

what is the difference between the sizes? what size does the TT use? It has "big 2.7mm" or "big 2.8mm"

Where can this be mounted on the Anet A8 belts without crashing into stuff??

mount it close to the extruder assembly on the left lower belt like this:

https://i.imgur.com/524nnF7.jpg

use one of the shorter screws so it doesn't rub against the metal bar for the X axis

there are many belt tensioners designed specifically for the a8. I would use those, they work perfectly for mine.

Thanks for the file. Worked great on my Anet A8. I initially put the belt on far too loose but this did the job great!

Absolutely love this thing. Super quick no-fuss fix for belt play, prints immediately got better after installing.

This was the first "real" part I made on my tarantula. Perfect. Great simple and effective.

Like the belt tie. Helps to hold the belt in place and if you want, you can add a zip tie for stability. have you ever had these work their way off a belt?

Thanks! They have never come off. So far so good!

Amazing, simple, quick to print design that works just as well as anything more fancy. Thank you!

Worked great. Thank you

Comments deleted.

can you tell me how this actually tensions?

The screw when tightened pushes down the middle block against the belt, tightening the belt that it's on.

Best belt tensioner available!

It works great! Thanks :D

Printed in ABS on a FlashForge Creator Pro. Hole was the perfect size for a M3 screw. Printed two for the Y-Axis (one each side). While my previous prints were great, they are now fantastic.

Hole was a bit too big, but otherwise, fantastic design! I ended up using a couple of nuts since it wouldn't self tap. Thanks a lot for the part

could not deal with that:
perhaps it is impossible to move so far itself, but if i put the x-axis to the right the part would collide to the z-nut-acryl or the screw head of it.
on my printer the belt is very near to the screw.
or would need to mount the nut under the 2040 profile instead on top, than there were no problem.

Really neat design. Works very well with some modification. I downsized the screw hole to 2.50 mm diameter and tapped it post print. The threads would strip out as soon as I tried tightening it with the original setup.

Works perfectly! Thank you for this amazing simple design.

Fantastic! I was thinking about designing this exact thing in Fusion when I said to myself, "Self. Let's see if somebody beat me to it." And there you were. So great of you to upload the Fusion file as well. Thanks so much!

Very nice minimalist design. I didn't use the clip, just put the adjuster inline on both the X and Y belts. Super easy and works great. Thanks for this thing...

Thank you Ronx!

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