Shorter belts using a belt tensioner

by peddiparth, published

Shorter belts using a belt tensioner by peddiparth Dec 22, 2012


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You do not need the full size of belts for your 3D printer X & Y axis. Use a the zip tie belt tensioner to substitute the other half of belt with something you pulled from an old printer or scanner.


Ensure that the belt tensioner does not cross the Idlers on either side of your axis.
The trick to finding the right length of belt is to fold the belt at the axis mount point, and adjust the length if it is not right for your printer's axis.
I paired MXL belts I pulled from two old HP scanners to other belts from other scanners/printers for my X and Y axis on my Prusa i2.
I think this system will work for most 3D printer designs.

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hahhahah... if i show you my 3 hours at the drawing board .. then this simple solution.. THANKS!!

Simple yet so useful. Awesome man just saved me a lot of time

Simple! Sometimes the best ideas are ahead of us!

Simple and Brilliant! :-)

I have had my printer for about a year now. I designed and built it myself and until now have never found a solution printed or otherwise to tension my belts reliably. I thought I could call myself an engineer until I saw this and wondered why and the hell I never thought about it. Thank you sir. You have improved my 3D printer by at least 100%.

Thanks for the compliments.

Simple and easy. I like this solution!