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I am attempting to print a 1.2kg part on the rostock max, and was trying to verify the home position on a test part. I let the printer get through the first layer, start the second, and hit pause. The printhead lifted, swung way off to the side, tapped 2 of the endstops. When i went back to un-pause, the printhead never lowered back to the part, and started to move and extrude plastic from its current location. Is this a known issue, should i re-install the firmware?

I split up the part into two separate gcode files for this reason. One ends (doesn't kill heaters) and homes, and then you change filament and continue by selecting the second file.

i mean, yeah, you can do that, but isn't the potential there to have the second print slightly off from the first after homing??

Well, I can attest to what Bot is saying.

An endstop I designed for my 3D printed cello was made in the manner which bot just described.

I made a "dual extrusion" model where in two separate files could be combined in a graphics program and it would be the "final" desired object.

I made a 200mm tall Cylinder, and then made a 10 mm cylinder file which rested exactly 200mm up on the Z axis.

When all was said and done, I had a part with 200mm tall of white pla filament, and at the tip, I had a 10mm puck of Black Ninjaflex.

Both pieces were two separate gcodes. I had the first gcode set to print 200mm tall, retract filament, home, and remain heated up.

The second gcode was set to begin printing 200mm up from the bed, and by then the filament had been manually changed out with the ninjaflex.

pics or it didn't happen.

The 3 Stooges said "if at first you don't succeed, keep on sucking until you do succeed!"

mhackney wrote:The 3 Stooges said "if at first you don't succeed, keep on sucking until you do succeed!"

Hah! same thing I tell my wife.. --> back to my cave