I went to home my printer after running a print and found that the Z sensor was not working (crashed the hot end into the bed). I ran M119 and it was not showing as triggered even though I had triggered it and could see the red indicator LED was lit on the sensor. To be sure though, I tested it out, and since I am lazy I googled to see if it was an NPN or PNP, and turns out it is NPN - and mine is dead - though it is strange the LED still indicates correctly (broken wire or connection maybe?). The pinout on these sensors is Black (output), Blue (ground), Brown (V in). I connected it up to my adjustable supply set for 12v, and connected the 10K Ohm pullup resistor between the black wire (output) and the 12V in, and when triggered, it never dropped the voltage on the output pin so seems to be dead.
No biggie though, these are cheap and it gives me a reason to swap it for an inductive probe. I bought the one linked in the how-to video by Nexi-Tech here (and also picked up a capacitive sensor just in case I decide to switch back.
https://www.nexi-tech.com/creality-cr10s-pro-autolevel-sensor-upgrade/
This did get me thinking about spare parts for the CR10S Pro, and how they are actually not easy to find beyond the basics. Fortunately there is always some other way to fix something on most of these printers, than just dropping a genuine spare part in, but it is often not as easy as just swapping like for like. But my search for the genuine spare did lead me to find this:
https://www.ebay.com/itm/Creality-CR-10S-PRO-3D-Printer-800mm-tall-Ribbon-Cable-Extended-MAX-Free-ship/283676658044
Which unfortunately I cannot find more info about over at opembuilds (despite what is in the listing). Looks like a simple mod as mods go, and could be really cool - but now that I have my enclosure for my printer it is not on the menu anytime soon. I think that kind of mod would also need to have some upgrades to the rigidity of the bed unless the speeds were slowed down quite a bit. Really cool upgrade though, maybe someday I will do it.
No biggie though, these are cheap and it gives me a reason to swap it for an inductive probe. I bought the one linked in the how-to video by Nexi-Tech here (and also picked up a capacitive sensor just in case I decide to switch back.
https://www.nexi-tech.com/creality-cr10s-pro-autolevel-sensor-upgrade/
This did get me thinking about spare parts for the CR10S Pro, and how they are actually not easy to find beyond the basics. Fortunately there is always some other way to fix something on most of these printers, than just dropping a genuine spare part in, but it is often not as easy as just swapping like for like. But my search for the genuine spare did lead me to find this:
https://www.ebay.com/itm/Creality-CR-10S-PRO-3D-Printer-800mm-tall-Ribbon-Cable-Extended-MAX-Free-ship/283676658044
Which unfortunately I cannot find more info about over at opembuilds (despite what is in the listing). Looks like a simple mod as mods go, and could be really cool - but now that I have my enclosure for my printer it is not on the menu anytime soon. I think that kind of mod would also need to have some upgrades to the rigidity of the bed unless the speeds were slowed down quite a bit. Really cool upgrade though, maybe someday I will do it.
Not triggered, 12V in and 11.93V on the meter which measures the black wire (output).
Triggered and no change to the voltage on the black wire. It should have dropped to almost zero volts since the NPN transistor inside the sensor would have closed the circuit to ground, but that did not happen.
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