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Belt Tension Gauge for PRUSA  

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Antimix
(@antimix)
Honorable Member
Belt Tension Gauge for PRUSA

Hello,

I built this Belt Tension Gauge for Voron.

On the site there are the standard values for Voron and NEMA motors. There is also a video on how to assemble here.

I purchased also the kit with the metal parts and wire to be sure they were the correct parts. It seems well done, works well, and the measurements are consistent during the time.

I measured the tension on my MK4 and MK3.5 that were tuned with the App PRUSA Acustic belt tuner.

On the MK4    I have: -> X = 2.5   Y = 2.35
On the MK3.5 I have: -> X = 2.6   Y = 2.5

- Is there anyone else that built this gauge and measured the values for a PRUSA printer ?

Ideally a brand new PRUSA assembled would be a good candidate for measuring the belt tension.

Regards

 

Posted : 03/09/2024 11:03 pm
3 people liked
Diem
 Diem
(@diem)
Illustrious Member

Most of us use:

https://www.prusaprinters.org/prints/46639-tension-meter-for-the-gt2-belts-of-i3-mk3s-or-prus

Despite the name it also works for Mk4

It MUST be printed in Prusament PETG or the spring tension will be wrong.

Cheerio,

Posted : 04/09/2024 6:20 am
Antimix
(@antimix)
Honorable Member
Topic starter answered:
RE: Belt Tension Gauge for PRUSA

Hi, yes I know it and I used it before. 😉 

But I wanted to have a more precise measurement, for this reason I built the new device.

Best Regards.

 

Posted : 04/09/2024 11:27 am
1 people liked
James D
(@james-d-2)
Member
RE: Belt Tension Gauge for PRUSA

Hi, I use you belt tensioner for my Voron, and I just tested my new XL out of the box and I got the following, which seems to be inline with other Prusa's

X: 2.5
Y: 2.5

Posted : 21/12/2024 6:52 pm
1 people liked
PF Makes
(@pf-makes)
Member
RE: Belt Tension Gauge for PRUSA

Thank you for sharing this data  with the community!  If I can get a few more measurement samples from the community the XL (I don't own one unfortunately) I will get these values added to the Github and manual.  It is looking like 2.5 on the meter is a pretty solid starting point. 

Best regards, 

-PF

Posted : 06/03/2025 8:19 pm
Antimix
(@antimix)
Honorable Member
Topic starter answered:
RE: Belt Tension Gauge for PRUSA

I think it will be very important during the CORE One kit assembly.

Best Regards

Roberto

Posted : 07/03/2025 6:47 pm
Nicotina52
(@nicotina52)
Member
RE: Belt Tension Gauge for PRUSA

I'm also very interested in knowing the correct value to best set up my Core ONE kit.
I've tried using both the Prusa app and the Gates app, but I always get inconsistent values. This tool, on the other hand, is exceptional, so I’d really like to know what tension corresponds to the 85 Hz detected with this tension gauge.

Posted : 06/07/2025 7:08 pm
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