How to work out how much to tighten belt z axes

Been having trouble with depth being much to deep, as in more than 4 x the amount set.
This is a new issue , was working fine. Ive tried multiple attempts of basic things like letters and squares on timber using motion and easel both with the same problem.

Ive tightened the necessary nuts to ensure the machine is running as should. Ive tightened the belt but unsure how to work out how tight it needs to be , dont want to over do it!!

Ive changed the router bits, not sure why just running out of options

Any ideas appreciated

shapeoko 3 xxl btw !!!

Have you sent the machine configuration?

If that’s not it, please check the machine mechanically:

It is also important to be sure that the collet is correctly tightened, the endmill fits correctly and doesn’t slip, and the router is mounted securely in the mount, and that the mount doesn’t shift. Note than endmill pullout can happen gradually, especially when profiling against tall walls.[4]

Also feeds and speeds may be a consideration: https://docs.carbide3d.com/support/#tooling-support and see https://www.youtube.com/watch?v=S9bceJxpqG0 for concepts on this and https://www.precisebits.com/tutorials/calibrating_feeds_n_speeds.htm for a testing technique and see the series #MaterialMonday: #MaterialMonday on YouTube

Beyond that it’s usually a matter of Calibration and Squaring the Machine c.f., http://docs.carbide3d.com/shapeoko-faq/how-to-calibrate-the-machine-for-belt-stretch/

I wrote up some notes on belt tension for the Z-axis at: https://forum.shapeoko.com/viewtopic.php?f=37&t=6765&p=53075#p53075

Hi Will, Thanks for the reply.

When sending machine configuration what is the sparkfun code situ.?

Hi Will, i installed the updated motion program. it did the same thing regarding the depth . i made a basic hexagon outline through create and set it to 3mm depth and ended up stopping half way at about 6mm… It did come up with the error at the end 'grb system command was not recognised or supported ’ . dont know if this will help . its been a long day, not used to all this technology

Sparkfun Activation Code is to allow CM4 to be used with Stepoko machines.

Is this a new or old machine?

If it’s old, please power down and set the DIP switches to 8x micro-stepping.

If it’s new, please contact support@carbide3d.com

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6 months old. so i guess new

i have contacted carbide 3d . just eager for response. appreciate your help will

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