Hi
Is there a way to be able to clear jammed filament and then go back 10 - 20 layers and restart the printjobb ?
After 23,5 h printing, ofcourse the filament jammed in the nozzle. And you can’t be sitting continously and watching the printer, so a way to take a few steps back and restart the printjobb would be most welcome.
Not that I know of.
If you don’t mind me asking, what are you printing
Theoretically it is possible but you have to know the exact place where your print stopped and make some g-code programming. Easier way is to cut your object where the print stopped (i.e. in netfabb), and then print the missing part. You can then glue the pieces together.
Like Raby said, it’s possible but it’s isn’t very easy…
Try to cut your object into little pieces. When you have a faulty print, only one part is gone in stead of the whole object.
Cheers,
Dylan
It’s only possible if you know the exact layer you are on. It’s not that complicated in terms of editing the gcode, I did it once when I had a power surge in the socket of the printer and it stopped dead on the print. Luckily it was doing infill at the time, so I made a note of the exact head position and lowered the head and cleaned things up a bit. I then looked for that head position in the recently executed gcode. I then basically started the print by deleting all the previously executed gcode, adding some of the start code to heat up the printer head as usual and pasted that at the head of the gcode that was still left to execute. In Repetier Host this quite easy, as you can preview what each line does. So I made sure when it restarted it started on an infill section, not on a perimeter line. It worked perfectly, you couldn’t see the join in the finished print, which was good as it was a 7 hour print.
But doing what you are suggesting is more complicated - removing layers might get messy, you only need a small error or piece of material left on a path for it to snag the head and possibly mess up your print by leaving a blob somewhere visible. And of course you’d have to be confident that you’d removed physical layers on your print to exactly the right point in your gcode…
It would be possible, but it would also be a lot of bother. Mind, I probably would attempt it if I’d nearly finished a 23 hour print, I mean you’ve got nothing to lose in that case!
I have got the printer back to working order after quite a few hours cleaning nozzle and replacing the piece of PTFE tuping in the printhead. Now again it’s prints with very good quality with white PLA, but I will wait to use the red until I have gotten a replacement nozzle at hand.