27hour print, 3/4 spool ABS and failed thermistor Grrr
Posted: Fri Oct 17, 2014 8:48 pm
I came home today hoping to find a big print nearly finished, well it was but was printing nothing for most of the day today as it looks like I had a failed thermistor which had failsafes the heaters by the firmware, but it didn't stop printing, just turned off the heaters??
anyway it was about 90% through a 27hour print when it failed and has used about 3/4 of a spool of ABS, so as you can gather I don't want to restart it. It looks like it should be recoverable as the thermister must have failed at the end/start of the layer.
I have calculated what layer i need to start at, however the issue is now I've had to turn off my printer to reset the firmware after replacing it so I can't re-zero my Z Axis.
So I thought maybe I can set the Z axis 0 = top of my print, which is fine in theory, this then raises the second issue, how do I slice only a portion of my object so I can continue where I left off, easy simplify allows me to do this by specifying the height I can start printing at (which Ive worked out what layer number it is), so now is where my real problems lies, if I zero Z-axis to the top of my print, and I've got my slicer to only slice what I want to print, how do I make this start printing from Z-Axis 0 and not the true height cause if I start printing it will then want to lower my ZAxis to the correct height?
....well I don't have the answer just yet, but thought someone may know so am putting it out there while I research it a bit more.
Stephen...
anyway it was about 90% through a 27hour print when it failed and has used about 3/4 of a spool of ABS, so as you can gather I don't want to restart it. It looks like it should be recoverable as the thermister must have failed at the end/start of the layer.
I have calculated what layer i need to start at, however the issue is now I've had to turn off my printer to reset the firmware after replacing it so I can't re-zero my Z Axis.
So I thought maybe I can set the Z axis 0 = top of my print, which is fine in theory, this then raises the second issue, how do I slice only a portion of my object so I can continue where I left off, easy simplify allows me to do this by specifying the height I can start printing at (which Ive worked out what layer number it is), so now is where my real problems lies, if I zero Z-axis to the top of my print, and I've got my slicer to only slice what I want to print, how do I make this start printing from Z-Axis 0 and not the true height cause if I start printing it will then want to lower my ZAxis to the correct height?
....well I don't have the answer just yet, but thought someone may know so am putting it out there while I research it a bit more.
Stephen...