![Rat Rig Community [Unofficial]](https://cdn.discordapp.com/icons/582187371529764864/08375bea6b5b9088b6d4cfc2b6e25fba.webp?size=48){kind=icon}
4028 fan on sht36 v1 toolboard not controllable
Hello, I read all the guide and all the other support threads on this topic, but I still cant figure it out.
Setup:
- Octopus 1.1
- SHT36 v1, connected via Canbus, not USB, heater and toolhead Fan works, so the toolhead should work
- Sanyo 12V 4028 fan connected with a step down converter (12V) to the 24V toolhead (dont want two extra wires running to the Octopus)
Problem:
The fan is always on 100%, also when Klipper has started up. It is not controllable from Mainsail.
Attached the wiring diagram. Not sure if the PC15 Pin on the toolboard is a standard GPIO I can use for PWM becuase of the other letter? But also tried PB1 and did not work as well.
I have a SuperPinda, so the PC15 and GND there is free to use.
Toolhead Config toolboard_fly36_GW.cfg (own toolhead config because of CAN):
printer.cfg
I also tried the
but did not understand how to change the PWM Pin, Klipper did not start up and showed errors.
Setup:
- Octopus 1.1
- SHT36 v1, connected via Canbus, not USB, heater and toolhead Fan works, so the toolhead should work
- Sanyo 12V 4028 fan connected with a step down converter (12V) to the 24V toolhead (dont want two extra wires running to the Octopus)
Problem:
The fan is always on 100%, also when Klipper has started up. It is not controllable from Mainsail.
Attached the wiring diagram. Not sure if the PC15 Pin on the toolboard is a standard GPIO I can use for PWM becuase of the other letter? But also tried PB1 and did not work as well.
I have a SuperPinda, so the PC15 and GND there is free to use.
Toolhead Config toolboard_fly36_GW.cfg (own toolhead config because of CAN):
[board_pins mellow-fly-sht-36]
mcu: toolboard
aliases:
[…]
# fans
** fan_part_cooling_pin=PC15,**
fan_toolhead_cooling_pin=PB11printer.cfg
[…]
[include toolboard_fly36_GW.cfg] #thats my custom toolhead config, but only changed to CAN and the Fan header
[…]
[fan]
pin: !toolboard:PC15 #(also tried *!fan_part_cooling_pin* here)
cycle_time: 0.00004I also tried the
[include RatOS/toolboard/4pin-partfan-25khz.cfg]but did not understand how to change the PWM Pin, Klipper did not start up and showed errors.
![Rat Rig Community [Unofficial] banner](https://cdn.discordapp.com/banners/582187371529764864/4ee3e42e227d6aac26f048a3e69d5924.webp?size=480)
The #1 unofficial Rat Rig Community on Discord!
14,070Members
Resources
Similar Threads
Was this page helpful?
![Rat Rig Community [Unofficial]](https://cdn.discordapp.com/icons/582187371529764864/08375bea6b5b9088b6d4cfc2b6e25fba.webp?size=16){kind=icon}