Not printing on the bed

My delta printer don’t start to print on the plate.
The calibration works and is ok.
How can I set the startposition correct? It always start 0,8mm from the plate
I tried to change the value to 0 and then I save by selecting store settings.
But the next time I want to print, de nozzle starts again above the plate

Dear,

It seems that printer isn’t good calibrated.
Place the endstops at correct height. See picture below.

.
Calibrate again and store the settings.

Also check these topics: Calibration issues.
https://manuals.velleman.eu/article.php?id=789 These also help to solve the problem.
Check every step and adjust were needed.

If it not help, You can create a ticket https://customercare.velleman.eu/
So we can help you further.

Regards,
Velleman support