Geeetech

Hey,

i got an A20 from Geeetech and upgraded a BLTouch to it.
I followed the instructions to setting up the right nozzle height.
I adjusted the Z-Offset until a piece of paper (round about 0.1appvalley tutuapp tweakbox
mm thick) is slightly
scratching on the nozzle when Z = 0mm. Therefore my nozzle is 0.1mm away from the
heatbed. Now im slicing a STL with 0.15mm first layer height. Accordingly my nozzle now
should be 0.25mm away from the heatbed. Am i right?

My problem is, the first layer wont stick well enough on that height and my nozzle seems to just
lay down a line of PLA on my bed and pulling it around the heatbed.

Did i missing something? Do i need to adjust my z-offset, so my nozzle is touching my bed or do i
have to adjust my first layer height in Cura to near zero, so my nozzle is 0.1mm away from the bed
on the start of printing?

Greetings from Germany.

Thank you for asking the question. I also had the same problem. Hope someone can answer your question soon.

1v1 battle

here How I adjust the first layer problem:

1- try to print a line pattern in order to have enough time to adjust the z-offset
2- when printing a line, you can see the hot end far away from bed
3- in control setting try the z babystep ( I thing it's the right name ) in order to adjust the z-offset during the printing operation.

once you find the righ babystep Z, use this result in Z-offset BL touch menu.

It works for me, let me know.