Geeetech

Hi, William.
You can try to set it to different values.
Then import the stl file and click slice.
Compare them then you will mean what I am talking about.

William wrote: Tue Jul 23, 2019 9:15 am Thanks for your feedback.

Hi willliam, why not try it at first?
You can check the software fast and he just wants an answer.

Click LCD>Main menu>About
HW is under 2.0 then it is 12V, 2.1 or more is 24V.
cheers

A step by step video will helps a lot.

You can attach your configruation_adv.h file.
Then I will take a look when I have the spare times.

Hi,
You can copy it to your configuration.h file.
But I think the estep of the A20M should more than 430.

Hi,
You can use the multimeter to check it.
The normal thermistor resistance should be 80~120KΩ
I don't have A30 but I have the A10 printer(The heatbed wires should be the same) The blue and green lines are for the NTC thermistor.

Have you tried to contact the sales?
They should send you the replacement if it is under warranty

If you want to calibrate your estep.
Refer to this vid：
https://www.youtube.com/watch?v=X3A9Ir2SreI

My estep is 457

Maybe you can try to print this gcode for a test(It is based on the A10M but your printer can print it also)