Z dimension not good

Hi ,
Yesterday I printed a calibration cube of 30x30x30 with ultrat filament
Then X and Y are very good “29.99mm” but z is 29.80mm. How can change this?

Thanks

@KarolinaZortrax no body is able to find a solution ?
Wall dimensions perfect, x and y perfect but z is too small of 0.15 to 0.20 mm.

Bed calibration is done and flow is checked !

Can I have some help from zortrax ?

Hello Frederic,

We are investigating your issue please send the zcodex file used.

Best Regards