Simplify3D User Forum

Hello,

I have built a customized printer that is most similar to the makerbot replicator.
I use RAMPS1.4 and the newest repetier firmware.
I can move the printer manually and correctly with the Machine Control Panel.
When I press Home All then the Position Readout tells me:
x: 0.00
y: 170.00
z: 100.00
That means that y and z homing direction is max and x is min.
My Problem is the following:
When I want to print a part, the bed does not move up to the extruder and the extruder prints in the air. But the Position Readout for z is 0.18 wich would mean that the bed is 0.18mm under the extruder. In reality is in homing Position what means 199.00mm.
What is my mistake?

Thanks
Flo

Did you try going to: Tool > Options > Machine (tab) > Flip build table axis > check z-axis [radio button] ? That may do the trick... You can flip the other axes as well or add in an "origin offset".

iprinter wrote:Hello,

I have built a customized printer that is most similar to the makerbot replicator.
I use RAMPS1.4 and the newest repetier firmware.
I can move the printer manually and correctly with the Machine Control Panel.
When I press Home All then the Position Readout tells me:
x: 0.00
y: 170.00
z: 100.00
That means that y and z homing direction is max and x is min.
My Problem is the following:
When I want to print a part, the bed does not move up to the extruder and the extruder prints in the air. But the Position Readout for z is 0.18 wich would mean that the bed is 0.18mm under the extruder. In reality is in homing Position what means 199.00mm.
What is my mistake?

Thanks
Flo

I believe your firmware is set incorrectly and z motor is plugged in backwards as well. Your firmware is probably set to home in min z direction, but your endstop is at the max. If im thinking of it properly, your z motor is probably plugged in backwards as well. In your case, if the bed moves up to the extruder at a print and is supposed to move down during the print, when you jog the bed, it should be moving down when you hit Z+.