Problem voltage print fan
Quote from EMERIC RENAUDIN on 2021-10-26, 21:50on my craftbot plus, I have my 3 heads fans not running fast enough at 100% of speed, I measured the voltage and there is 9V at 100% for 12V fans, is that right or not ? how to reset 12V? is this a firmware problem? or motherboard ? I tried the latest firmware but it doesn't change thanks for your Help, because my PLA print are less good than before
on my craftbot plus, I have my 3 heads fans not running fast enough at 100% of speed, I measured the voltage and there is 9V at 100% for 12V fans, is that right or not ? how to reset 12V? is this a firmware problem? or motherboard ? I tried the latest firmware but it doesn't change thanks for your Help, because my PLA print are less good than before
Quote from Giovanni Selvaggio on 2021-12-02, 07:53Can you check this?
M1006: Set limits s=1 Case / S=2 Head: H L S
There is a way in the stock firmware to modify the peek fan “aggressiveness”. The non-secret code is M1006S2, about M1000 tells this:
“- M1006: Set limits s=1 Case / S=2 Head: H L S”
The way it works is this: the firmware measures the head temperature, and if it is greater, than 80C, then it computes a value:
X = 50+TEMPERATURE/2
This in turn determines the duty cycle of the fan in 0-255 range:
DUTY = X*((H-L)/256)+L
These L and H values can be set with M1006 and the defaults are H=255, L=50.
Either you can solve the equation (smiley) or try different values for H, but anything over 255 will help you.
You can mess with L too, for example M1006S2LxHx sets the fan fixed at x.
You can modify your head fan cooling with the M1006 S2 code. The default is M1006 S2 L50 H255. Although it seems, like those are limited to 0-255 range, but in fact they are not. With higher H values you can speed up your fan, try M1006S2H300, M1006S2H350, etc.To spin the extruder fan faster, try this:
M1006 S2 H350 ; spin the extruder fan faster
Can you check this?
M1006: Set limits s=1 Case / S=2 Head: H L S
There is a way in the stock firmware to modify the peek fan “aggressiveness”. The non-secret code is M1006S2, about M1000 tells this:
“- M1006: Set limits s=1 Case / S=2 Head: H L S”
The way it works is this: the firmware measures the head temperature, and if it is greater, than 80C, then it computes a value:
X = 50+TEMPERATURE/2
This in turn determines the duty cycle of the fan in 0-255 range:
DUTY = X*((H-L)/256)+L
These L and H values can be set with M1006 and the defaults are H=255, L=50.
Either you can solve the equation (smiley) or try different values for H, but anything over 255 will help you.
You can mess with L too, for example M1006S2LxHx sets the fan fixed at x.
You can modify your head fan cooling with the M1006 S2 code. The default is M1006 S2 L50 H255. Although it seems, like those are limited to 0-255 range, but in fact they are not. With higher H values you can speed up your fan, try M1006S2H300, M1006S2H350, etc.
To spin the extruder fan faster, try this:
M1006 S2 H350 ; spin the extruder fan faster