Build plate wouldn't rise now doesn't know where it is

[Jubilieus]

Hi

So I was having an issue with my printer where the build platform would not rise correctly, sometimes in judders and starts otherwise simply not moving at all

I cleaned the mechanisms twice, the screw the platform moves up and disassembled the build plate and it's interior screws. I am confident it is not an issue with grease on the screw. 

Now a new issue has presented while I was attempting to troubleshoot and when the build platform lowers it does not realise it has reached the LCD screen and continues to try and lower, I have leveled the base and it has not helped. I'm unsure if I now have two issues one with the motor not being strong enough and also the sensor to detect z=0 also not functioning

Any advice is appreciated if anyone has had any similar issues

Thanks for any replies

[fromFDMtoSLA]

did you try to reset the machine parameters by printing the Elegoo gcode-file?

[Jubilieus]

did you try to reset the machine parameters by printing the Elegoo gcode-file?

I ran the Chipboard file that came on the memory stick like this

https://www.youtube.com/watch?v=UNThkkdx9DI
it had no effect
Is this what you meant or is there something else?

[fromFDMtoSLA]

yes, thats the file i mean - because there are some settings for the z-axis inside.

if the printer is new, contact Elegoo support,
otherwise you should check the cables of the z-motor and the z-endstop

[Jubilieus]

yes, thats the file i mean - because there are some settings for the z-axis inside.

if the printer is new, contact Elegoo support,
otherwise you should check the cables of the z-motor and the z-endstop

Ok thank you for the advice