Comment on [Troubleshooting] It's the clog guy again - temp readings are bad!
papalonian@lemmy.world 6 months agoOne thing you’re overlooking here is the connection between the hot end and the control board.
The Neptune 3 is a ghetto ass printer that doesn’t have a hotend control board. Haha. There are separate wires for the heat cartridge and thermistor that run all the way from the unit to the printers motherboard under the bed. Since I’ve swapped thermistors multiple times, I’ve more or less confirmed the connection is good.
Frankly I’m impressed you’ve managed to troubleshoot this far.
Me too! Haha. I would normally have long given up, but I’m DM’ing a DnD game, and not being able to print out minis, terrain, obstacles etc is actually having a larger-than-I’d-like effect on things.
Damage@feddit.it 6 months ago
Are you saying that the wire is all in one piece from the thermistor to the board, with no other connectors in-between? Meaning that replacing the thermistor also replaces the whole wire?
papalonian@lemmy.world 6 months ago
Precisely, I’ve seen a lot of printers have a control board on the hot end to which the heat cartridge and thermistor are connected, with a ribbon cable running from the hot end control board to the main motherboard.
My printer does not have this secondary control board. There is a 1.5m wire running from the thermistor all the way to the main motherboard, same as the heat cartridge. Replacing the unit means replacing the entire connection, from unit to motherboard
Damage@feddit.it 6 months ago
You could also have a thermistor with a connector on the wire near the toolhead, even if you don’t have a toolboard. Old E3D thermistors had only about 15cm of wire attached to them.
papalonian@lemmy.world 6 months ago
I’m not sure what you mean. Where does this 15cm of wire go to, if not a control board or simply a wire extension that runs to the main motherboard?