Etruder positions itself about 8mm above the print bed

[robcowley]

I am totally new to all this so any help would be great i have just finsihed building my I3 pro X printer it all seems to work but when i try to print a object the extruder sits about 8mm above the print bed i leveled the bed and set the Z stop just paper thick above the bed?
HELP i am sick of it already lol

[William]

Hi,
I think you can check if the X axis left end and right end are staying a same height.

[robcowley]

they appear to be same height?
https://www.youtube.com/watch?v=rphXOdF ... e=youtu.be

[William]

I can only see the printing object didn't stick to the bed from your video...Are the two distance same?

QQ截图20160816113327.jpg (101.39 KiB) Viewed 9074 times

QQ截图20160816113301.jpg (108.29 KiB) Viewed 9074 times

And i think it's the abnormal anto home of Z axis caused it,you'd better observe Z endstop status when you auto home the printer:

QQ截图20160816113555.jpg (109.54 KiB) Viewed 9074 times

[robcowley]

Hi the print nozzle always seems to high above the bed ?
https://www.youtube.com/watch?v=Ux1qkp4zboA
i altered the levels on the Z axis so they are equal.
https://www.youtube.com/watch?v=Ux1qkp4zboA

Thanks for your help hope someone can see where i am going wrong.

[William]

Hi the print nozzle always seems to high above the bed ?
https://www.youtube.com/watch?v=Ux1qkp4zboA
i altered the levels on the Z axis so they are equal.
https://www.youtube.com/watch?v=Ux1qkp4zboA

Thanks for your help hope someone can see where i am going wrong.

Have you homed your Z axis before you level the heat bed?

[robcowley]

Hi I home it then switch the steppers off to level the bed is that correct?

[William]

Hi I home it then switch the steppers off to level the bed is that correct?

Yes,you're right.How did you operate it before?

[robcowley]

Hi that's how I have done all the time