Easy way to raise extruder out of the way after printing?
Just starting to use the MK3S and wondering if there is an easy way to automatically raise the extruder off the bed for easier removal of the PEI sheet. I'm trying to avoid dragging the sheet across the bottom of the extruder. I've tried:
- Going through settings and manually moving the extruder up (about 4-5 steps)
- Adding post printing commands to the printer profile in cura to move the bed forward and up (does not seem to work all the time)
- Adding commands to the end of print in octoprint - somewhat dangerous I think, as I do not always want to move Z up 50 if it is near the top already
Any better suggestions?
RE: Easy way to raise extruder out of the way after printing?
What slicer are you using? Slic3rPE includes end gcode that will raise the extruder at the end of a print job. You can customize this to move the extruder wherever you like.
RE: Easy way to raise extruder out of the way after printing?
I'm using Cura - I'm just not sure it is smart enough to keep a final positioning command from smashing into the model or the upper limit of the z axis...
RE: Easy way to raise extruder out of the way after printing?
just push the knob in. it doesn't take too much work
I have a Prusa,therefore I research.
RE: Easy way to raise extruder out of the way after printing?
I'm using Cura - I'm just not sure it is smart enough to keep a final positioning command from smashing into the model or the upper limit of the z axis...
What Cura lacks is a way of doing any math in generated gcode, so you can do one of two things:
- Set the Z position to relative and tell it to "go up XX mm". This works, but if your print finishes near the top, you may grind the extruder agains the top position as it tries to go higher than it can.
- Keep the Z position absolute and tell it to go to a specific position. You have to be careful here, because if that position is lower than the top of your print, you can send the nozzle crashing into your just-completed masterpiece. You can tell it to go to maximum Z, but that can take a while and be a bit annoying, and you could conceivably bump a tall print.
I stick the following lines in my Cura end gcode. I haven't had any problems yet, but it isn't ideal.:
G1 Z{machine_height} ; raise Z to max
G0 X0 Y200 F10200; present bed
More Cura gcode notes here.
RE: Easy way to raise extruder out of the way after printing?
toaf - Thanks - I knew there was some easier way to move the Z - must have missed this somehow
bobstro - good recommendations on the gcode end lines - I also checked out your page - will be using the more extensive list starting and end code recommendations - Thanks