Print always too tall.. Negative Z offset
Im running into issues where my print is always slightly taller then it should be.. I know what your thinking.. check your Steps per mm on your Z.. and i did
when i move Z it moves the right amount.
If i print something that is 10mm it will end up being 10.5, if i print something 100mm it will be 100.5
My extrusion multiplier is good.. other dimensions and holes are accurate.
My printer is inique in how it homes.. it has a negative Z offset of -1.5mm. when it homes the Nozzle is pushed up and triggers an endstop. this allows me to have no x,Y offset but means a negative value. I also use mesh Grid Compensation. Im wondering if having A negative Z offset and also using mesh grid is causing some bug. which is messing up the height.
Nozzle is pushed up and triggers an endstop.
But then it drops back down again when you lift the head again, right?
How have you measured the trigger height?
well the trigger height is my Z offset, it plunges 1.5mm, am i missing something?
Yes. The trigger height isn't going to be accurate because the nozzle position changes after it's triggered. It drops back down.
it triggers at the same height each time. what makes it not any more or less accurate then having the endstop below the nozzle
Danal last edited by
After calibrating via the unique endstop, G0 Z0 results in nozzle just touching the bed? Passes the paper test?
after homing running G0 Z0 its was loose.. i fit 4 sheets of paper. I will adjust by 0.2mm and try again