Resume in wrong position after power outage
MK3S/MMU2S - After power outage printer resumed in wrong place. Y and Z seemed to be correct; X was offset by ~+80mm. This was a ~15 hour run approx. 83% through.
Looking for:
- How to find the X/Y/Z coordinates where it should have restarted
- How to find where in the G-Code file it restarted
- How to seek to the proper coordinates and restart at that point
- How to fix the problem before it happens again.
THANK YOU for any help!
BC
BC
RE: Resume in wrong position after power outage
Power fail recovery when filament sensor is enabled is 50-50.
Measure the height of the partial part. That gives a clue of layer altitude, part features are additional clues to home in on layers. Use slicer to cut the model at that height. Print the missing half (it's a new part, starting on a clean bed), and glue it together with the unfinished portion.
Or, start the print again and make sure power doesn't drop.
Recovering a failed print is full of problems and road blocks. It's possible, but finding the exact layer height to restore to is a process all by itself. And if the printer has lost home, that is the current position of the extruder has been bumped or moved, it's nearly impossible. But if you have a second sheet like the one the part is on; you can use it to home the printer; put the sheet with the part back on, use the manual controls to move the nozzle so it touches the surface of the print, then read the height; that can tell you about where you need to clip the gcode. Then. clip the gcode but leave enough of the startup code to make the printer warm up, but no home or mesh level, and start printing at the height you found earlier. But it is a lot of work, and you will not like the results.
RE: Resume in wrong position after power outage
Hi Tim-M30 - Great rundown on options.
The extruder was not touched, so I am wondering if there is an issue with last position recording or retrieval.
Slicing and Dicing (and gluing) will be my best option on this one. Now all I need is power to finish the project - We are out for AWHILE.
Thank you very much!
BC
BC