i want to auto pause 3d printer when power outage
i want to know g-code when pause, pause management
I used to want the same thing, until I realized that a power outage pretty much pauses the printer automatically, whether you want it or not!
But seriously, I realized there is a “Pause Printing” function in the manual menu on the printer itself. I thought, Great! Then I thought, Not So Great, as the extruder did indeed stop in its tracks and, still being hot, proceeded to melt a crater in the print where it stopped.
Any sort of USEFUL pause function would incorporate:
- a head lift, or better yet, lowering the print bed all the way because the need for a pause usually means needing access to the printhead (clogs, etc.)
- A BULLETPROOF memory of last printing location, which would survive all manner of menu-controlled axis and temperature changes needed to address the problem.
- A resume function that waited for the extruder to regain desired temperature before … y’know, resuming.
Still, the power-outage idea is interesting. Since there is a second or two of power in the supply after the mains are cut, this should be able to be sensed and made to trigger a stop print, lift head and save the status. When power came back, the first thing on the screen could be “RESUME PRINT? YES” with the scroll wheel to select NO if wanted and pressed to activate your choice. But this is the gearhead in me talking. The lazy in me is saying get a UPS for the printer.
What could be done at pause is a automatic vertical lift and a slow long retraction and then at restart go back. modifying/creating the commands for this in the firmware should not be to hard i think. Question is if there is something else that could be useful to be done in a procedure like this.
// Marlark
On the K8200 I use the pause on the computer to stop the print.
Manually (software) move the the head away from the project and change colors.
I have not tried this on the Vertex yet.