Oh no! Pinda broke off
Hi all,
I recently had a flex print go wrong for unknown reasons. It wrinkled badly and caught the pinda probe (which is always worryingly near prints) and broke it off the base of the print head. The plastic of the filament holder plastic is sheared. It's not a case of a new probe. It's a case of needing a new plastic part of the filament carriage.
Does anyone know what I can do now? Can I get a replacement part printed and sent? I doubt PRUSA send out .STLs for the parts of their own printers. Can anyone help?
Thanks in advance, Rob.
RE: Oh no! Pinda broke off
There seem to be parts, but which would I need and how do I get instructions on replacing them?
https://www.prusa3d.com/product/extruder-body-mk3s/
https://www.prusa3d.com/product/extruder-cover-mk3s/
Regards, Rob.
RE: Oh no! Pinda broke off
Please consult Prusa's manual for e-axis-assembly or guide/how-to-replace-superpinda. If your PINDA itself is intact, you might skip some steps for the cable routing into the electronic box.
If you have a friend with a printer, ask whether he can print the part for you. Alternatively, you can buy mk3-s-plastic-parts, in your case the extruder-body from Prusa. In case of emergency, you can try to glue the broken part, followed by a first-layer-calibration in order to print the broken part out of PETG (see PETG, filament-material-guide).
Please search this forum for "pinda broken" or "replace MK3S extruder-body".
If you have no other 3d-printer available, you could print spare parts yourself, once you have repaired the extruder. Especially the fan-shroud is exposed. The latter is usually printed in ASA. Depending on urgency you could prepare yourself for at least a few cases and get a few spares like thermistors, nozzle, heatbreak, heatbed cable. Just in case.
RE: Oh no! Pinda broke off
Now that you need to reprint the extruder body, it would be a good idea to use ASA/ABS/PC instead of PETG. I've read reports in this forum of first layer calibration issues because the narrow part that holds the PINDA started to sag after some time printing filaments that need a bed temperature of 100C or more. In these cases, the offset of the PINDA relative to the nozzle changes progressively, requiring a recalibration of the Z-offset every now and then. Although this seems to be an unusual problem, because most people prints mainly PLA/PETG, an extruder body made from ASA or PC will save you from any future trouble in this regard.