change this in the extruder section
[extruder]
control: watermark
#control = pid
#pid_kp = 25.0
#pid_ki = 2.0
#pid_kd = 85.0
#Extruder not heating at expected
mild grail
lost wolf
you mean this part ?
mild grail
yes and change control: pid to control watermark and try again
lost wolf
Okay, thank you, I'll give it a try
Problem is still there
This time he got a run more but still breaking up the pid
mild grail
are the Extruder and Heat Bed Temperature are even
mild grail
yes
hushed star
Why on earth you would do a pid tune if you set it to watermark
Is your fan on when you do a pid tune? Do you use a silicone sock? Is your fan shroud maybe blowing so much air on the heater block that it cools down it.
lost wolf
The problem is that since I installed a Voron Afterburne, the PID at 230 gard only works with 25% component cooling. Strangely enough, the temperature drops just as quickly during PID tuning when the component fan is switched on as when the fan is switched off. Most of the time it switches the hotend back on after reaching 225, but then it drops to 216 when the fan is switched off as well as when it is switched on. Heating up again is just as quick as when the fan is switched on, but when the fan is switched on it stops again after 3 curves, which actually doesn't make any sense, since it covers exactly the same temperature curve in the same time when the fan is switched off.
lost wolf
Why on earth you would do a pid tune if you set it to watermark
I dont even know whats the difference between watermark and pid 🥲 sry
hushed star
watermark: is a on/off regulation
- below target temp - max_delta-> heater starts heating with 100%
- above target + max_delta-> heater is switched off
pid: is a real regulation loop
the pid_Kp/i/d factors define the characteristic of the regulation loop
They influence over/undershoot, settle time, slope of the heating curve ...
watermark was used on old 8bit uC where tjere was not enough power for the pid regulator calc
what I would do:
comment in the old values and remove all others !!!
- then run a pid calc at 200C -> does that work? if yes: save_config and do 2)
- run pid tune with 215C -> does that work? if yes: save_config and do 3)
- run pid tune with 230C
lost wolf
I ok will try that when I'm home again. Thank you for ur answer! 👌 I never tried that bevor.
lost wolf
so i got an update he made the 200C PID but 215 was to much and i broke down again. im now trying 205C PID. Perhaps it will work with smaller steps
ok 205C worked
dont get it to 215C just with 210C
lost wolf
thats with 215C
hushed star
That is really strange
What power has your heater?
Are you sure you have one for your voltage 12V vs 24V?
lost wolf
i think the problem isnt the part cooler. I think its my hotend cooler because i chance it. is there a possibility to set the fan speed a bit down ?
lost wolf
Are you sure you have one for your voltage 12V vs 24V?
I have got 24v
hushed star
Send your printer.cfg
lost wolf
hushed star
There is no hot end cooler defined in your cfg -> it is connected to a always on 24V pin -> you can not slow down it
Does the mcu board you use has a second fan port that can be regulated?
A hot end fan would look similar to ## Hotend Cooling Fan (24V Fan) [heater_fan hotend_fan] pin: TH:PA0 max_power: 1 fan_speed: 1 kick_start_time: 0 heater: extruder heater_temp: 50.0 and there you could slow down by setting fan_speed lower than 1
But not every fan “likes” that and if you set it to low it would stop completely
lost wolf
OK so i have got an creality V4.2.2 Board and it looks like it has an port for regulating a fan. But i have to buy another fan with another header to fit the header on the board right ?
