New Pinda Quality Test? - Firmware v3.0.11
So, I see by the new firmware v3.0.11 that there is now a preheat cycle to calibrate with the Pinda. On one post about this, I saw mention of a new quality test being done on the pinda probes for all new units.
My new MK2S kit came with a Pinda that didn't work at all. My dealer, Voxel Factory, is shipping me a replacement unit, but their inventory is from before the new quality testing.
Is there something I can do to test the Pinda prior to rebuilding the printer with it?
I'd really hate to spend a couple hours doing the tear down and rebuild, only to find that the replacement Pinda isn't up to the new quality standards.
I have access to multimeter and oscilloscope, if that helps.
Re: New Pinda Quality Test? - Firmware v3.0.11
I have a feeling that my PINDA is faulty, as i cannot seem to get a good compromise for the height. When I lower it by a turn of the nut, you have to adjust the z-height to over -1.5 to the filament to touch the bed. If you then raise it by one turn, the extruder nozzle almost grinds the bed during calibration. It seems to be impossible to get it right. I am so frustrated with this printer, that I wish I had spent a little more and bought something more robust and reliable. The Prusa just isn't living up to the reviews, and the support is as flaky as the printer. I am close to sending it back and asking for a refund.
Re: New Pinda Quality Test? - Firmware v3.0.11
Hi Nicholas,
you can adjust the pinda in one sixth of a turn increments. you don't have to go a whole turn.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: New Pinda Quality Test? - Firmware v3.0.11
Thanks for the response. I am aware you can do 1/6 increments and have tried many time making small adjustments, but have yet to find a suitable height for the probe that works. I am fast coming to the conclusion that the pro.be is faulty. Nevertheless, I find the method of adjustment rather clumsy for such an important part of the initial setup. It seems that a small adjustment makes a huge difference, so why such a crude method of attachment and adjustment? Unless of course, my probe is dodgy and is not behaving as it should.
Nic
Re: New Pinda Quality Test? - Firmware v3.0.11
Replacement Pinda came. Tested before installing and it is working. Finished the install and still good. Have finished the self test, XYZ calibration, extruder calibration, PID calibration Bed PID calibration, Live Z calibration (the 75 x 75 mm square trick from the life Z thread works great!).
Have since printed three tree frogs. First two with the stock filament holder, and third with a Lego built unit on table behind the printer. While using the stock holder, I have to continue to assist the feed or it gets to a tug of war as the filament spool swings back and forth on the smaller holders.
The lego built one was four wheel set to roll on the outer rim of spool. It doesn't pull back but is a bit tighter for the pull strength. In the midst of building a ball bearing variant that should handle the weight better.
I also had some twists in the filament that caused a knot during the third print. This required intervention to save the print, however, even then there are a couple of places where the print is not as smooth as the first two.
I can suggest that when setting the height of Pinda, using a feeler gauge or other thin stock. I had squeezed the nylon tie end down to 0.7 mm thick and my Z height is -0.450, which is only 0.15 more than the 0.300 I would have expected for a perfect Pinda. I'd say well within the tolerance.