In the middle of testing all components with new build
MB: M8P v2
toolhead : stealthburner via canbus
breakout board: sb2209 [RP2040] with daughter board EBB sb0000 CAN v1.0
STD config file has hotend cooling configured and working
[heater_fan hotend_fan]
pin: RP01:gpio14
heater: extruder
heater_temp: 50.0
yet there no info for blower fan
i believe that blower fan is controlled with gpio13
but has only basic description on config file
[fan]
pin: RP01:gpio13
dont know if im right or wrong on pin
theres also generic fan that i cant find info for what part it controls
[fan_generic 4W_FAN0]
pin: RP01:gpio15
tachometer_pin: RP01:gpio12
tachometer_ppr: 1
After sone troubleshooting I was able to figure out the following
GPIO13 belongs to toolhead blower fan
4W_FANO is the port on SB0000 GPIO15 that controls and additional PMW fan for possible toolhead cooling
Now im able to start fan but it wont spin and in fact it just does a buzzing noise
[fan]
pin: RP01:gpio13
max_power: 1.0
kick_start_time: 0.25
hardware_pwm: false
cycle_time: 0.01
off_below: 0.05
Ive done the following
replaced/swaped SB0000 daughter board to rule out connection failure
I’ve swapped out fan making sure new crimps were getting signal tested with multimeter
i’ve made sure that on toolhead SB2209 jumper is set to 24v
cooling fan does work correctly
as a last resort i’ve swaped out fans to see if connections were set incorrectly but fan 5015 was not working
it could be falty fans..multiple.. ordering new ones hopefully that solves my issue
Replacing fan did not worked for me
when starting to test fan
one burned out
and two others just buzz and dont spin
jumper is set to 24v and all fans are 24v
any suggestions ?
was able to find root cause
extra extrusion on stealthburner face plate was hitting the corner of the fan blades and cause no rotation
cleared extrusion ran test and was able to get full function