after crash detection, prints differently
So I (actually my friend, but whatever) put together my Prusa i3 mk3 a few weeks ago, and have printed many parts on it. I'm using Matter Hackers Pro PETG.
However, yesterday I had a bind in the spool (thanks Matter Hackers :\) which caused the crash detection to go off, stopping the print (which is great).
But now, when I run literally the exact same gcode file, the print output has changed! For some reason, now it continues to extrude runs across the center of the part rather than continuing around the edge.
I looked for people with similar issues but couldn't find any. The only way to fix it that I've found is a full reset, and then redoing the xyz calibration etc. from scratch...
Any ideas what's going on? If I missed any important info here, please let me know, happy to provide it.
Long-time 3d printer for small scale manufacturing applications, handheld devices etc... current owner of 2 Prusa i3 (mk2.5 and mk3). 😀 See more at http://our-sci.net
Re: after crash detection, prints differently
I don't see how the pathing could be altered in that way. looks like its still printing outer perimeters, are you absolutely certain that is a print move and not a travel?
Re: after crash detection, prints differently
did you rerun just the Z calibration? maybe the Z got off
I have a Prusa,therefore I research.
Re: after crash detection, prints differently
No, it's not a calibration issue @toaf because the print is otherwise pretty normal, and the location of the first layer is fine (not too high or low). It is definitely not stringing during travel @curtis.c2 - I could make a video to prove it but that's probably overkill. I've been running 3d printers for 5+ years, so I'm not a noob when it comes to what things should look like.
I literally just seems that the printer has now decided instead of running the outside perimeter line as it should, it's skipping an inside perimeter corner and that's causing this new line to appear.
I tried a different gcode file, which has only one instance of the object I'm trying to print on it, and was sliced a few days before the one I just tried. Same problem!
See image below - for what the slicer image looks like for this later and what should happen, and then a close up of what actually happened. It seems the head is moving to a different inside perimeter location instead of following the intended path... you can tell because the inside perimeter is missing on this corner.
I'm pretty confused as to how this would happen, clearly it's not changing the gcode. I'll post after this with the gcode link, can't do it too many images in this post.
Long-time 3d printer for small scale manufacturing applications, handheld devices etc... current owner of 2 Prusa i3 (mk2.5 and mk3). 😀 See more at http://our-sci.net
Re: after crash detection, prints differently
gcode posted here:
https://drive.google.com/file/d/1w9E-W5Tcvx_Oz2GJ6u2PJ97jNccMMtdB/view?usp=sharing
Long-time 3d printer for small scale manufacturing applications, handheld devices etc... current owner of 2 Prusa i3 (mk2.5 and mk3). 😀 See more at http://our-sci.net