Comment on Biqu B1 - Not heating the hotend
UncleStewart@sh.itjust.works 3 months ago
- Power from PDU = OK
- Power to bed heater = OK
- Looks like power to the nozzle heater = same results as when checking volts directly on the hotend.
- Empty
#3 goes up to a board back on the printer. This board has multiple outlets, and one USB-C that goes up to the hotend.
UncleStewart@sh.itjust.works 3 months ago
Image
This is the board that has a USB-C on the outside for the hotend
UncleStewart@sh.itjust.works 3 months ago
Image
The outside view
papalonian@lemmy.world 3 months ago
So that little board is simply connecting all the cables from the main board into one cable (the USB C cable). If you’re getting nothing from the main board, either the board itself or the mosfet for the heater is dying.
Honestly, I don’t know how you’d go about testing board vs mosfet, if it were me I’d just replace the board, but somebody else might be able to tell you if there’s a better route to take
UncleStewart@sh.itjust.works 3 months ago
Yes, that little board connects many of the cables from the main board to one USB-C, the the black and the white connectors. The USB-C is the only one going to the hotend.
Anways, thank you, kind internet stranger, for trying to help me out with this. Looks like I’m gonna have to replace the mainboard.