PINDA probe melting : disaster during ABS printing
Hello everyone!
I would like to share my daily terrible experience with the PINDA probe.
After a couple of successful ABS prints, I left the printer unattended and when I came back I found the PINDA probe stuck inside a block of ABS!
Probably, being the build surface uneven, and the mesh level calibration not so precise, the probe touched and was caught by the printed part...
What came after, led the PINDA probe to melt...and setting it free was a pain!
Have a look at the probe damage!
I wonder if it still works...I'll let you know on next days!
PS I recently lowered the probe because of inconsistent first layer calibration. I set it at 0,45 mm higher that the nozzle (double checked with a thickness gauge). A too low probe positioning leads to unwanted catching by printed parts, but setting it too high causes calibration problems and first layer inconsistency. I am quite confised at the moment, since I followed the manual thoroughly.
Re: PINDA probe melting : disaster during ABS printing
i seriously doubt it was anything to do with probe height or the build surface or the accurateness of the mesh bed leveling, but more than likely your ABS didnt have a good adhesion to the bed and a corner started to curl, and was caught by the probe while passing. One reason you always want to monitor , especially with ABS at least the first few layers (at least 5 IMHO)
Re: PINDA probe melting : disaster during ABS printing
erron is correct. The filament started printing in air instead of on the bed. Eventually wrapping around the hotend and eventually the pinda probe. Never ever, leave the house with a 3d printer running. Fire risk. I set up a networked steerable camera to monitor my prints amongst, often 3 different 3d printers running at the same time. I monitor whilst in my house. But in another room. I also have a 10 year spec fire alarm installed in my 3D printer room. I can run up to 6 different 3D printers and one time. I built some and paid for some ready built. I am no free rider who gets freeby printers like some , on youtube 🙂 ie 3D Printing Nerd, Makers Muse and others.
Nigel
Life is keeping interested and excited by knowledge and new things.
Re: PINDA probe melting : disaster during ABS printing
erron is correct. The filament started printing in air instead of on the bed. Eventually wrapping around the hotend and eventually the pinda probe. Never ever, leave the house with a 3d printer running. Fire risk. I set up a networked steerable camera to monitor my prints amongst, often 3 different 3d printers running at the same time. I monitor whilst in my house. But in another room. I also have a 10 year spec fire alarm installed in my 3D printer room. I can run up to 6 different 3D printers and one time. I built some and paid for some ready built. I am no free rider who gets freeby printers like some , on youtube 🙂 ie 3D Printing Nerd, Makers Muse and others.
You are right. Being aware of that I placed the printer in an isolated and protected enviroment, in the basement. It seems that for larger prints few layers are not enough, having waited as suggested.
Having an uneven surface let some zones detach easier, isn't it?
Re: PINDA probe melting : disaster during ABS printing
Wonder if it would be possible to setup a circuit to stop the print if pinda probe is hit by the 3D model. Maybe a z-stop switch could be used hooked into one of these:
Re: PINDA probe melting : disaster during ABS printing
I do not thing it would be a good idea, that would let the hot extruder uncooled and will damage the extruder body.
What could have help you in your situation is to use a protection for the PINDA, mine ( http://www.thingiverse.com/thing:1617374 ) or the PR one ( http://www.prusa3d.com/prusa-i3-printable-parts/ ).
I'm like Jon Snow, I know nothing.