I have something i have been breaking my brains over the last 2 weeks.

First of all, my printer works, i can print anything i want, pla, abs, flex. BUT...

There is something wrong and i don't find out what it is exactly. I calibrate my Z axis height in the beginning and i set it to 0.4 or 0.2 for calibration. Than i start printing. First layer goes perfect, good adhesion and so on. But than what happens is that ( layer height 0.2) the printer is like not moving up like it should, cause the layer at 0.4 is like not higher than 0.2, same for 0.6, at 0.8 it seems to move a little bit up and at 1 mm again it is higher, but when i take the measurement at 1 mm, i am barely 0.4 high. So after a print i mostly loose between 0.7 and 1 mm of height of the total height ( lets say 40mm ). This happens everytime. It is extremely annoying, cause my print is never the height it should be.

When i home all axis my Z axis is set at 0.8 and the amount of steps are still set at 1600.
(for bed height calibration i will bring Z axis down to 0.4 and than calibrate the bed )

Does anyone have an idea of what is going wrong here???

Thanks for any help.
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