Heater extruder not heating at expected rate
Hi
I keep getting this message. it has come some times before but i just had to restart an everyting worked fine but now it keeps coming up all the time. i dont know where to start. everything is all new to me with klipper and so on. the heater is a revo voron e3d
133 Replies
Have you done a PID tune?
harsh-harlequin•2y ago
Do a PID Tune with the Nozzle 2-3mm above the Bed and Partfan on full blast
yes i have done that
even when i pid tune sometimes the message appears aswell
harsh-harlequin•2y ago
Which MoBo you are using?
dont know what mobo is
harsh-harlequin•2y ago
Motherboard
MCU
Whatever 😂
😆
could it be the bigtreetech octopus? as i said, its all new to me this, i didnt build it
harsh-harlequin•2y ago
Yeah that's what I meant
Then you have several Heater Connectors unused, you could try to use another
i will check
is it the thermistor connection?
harsh-harlequin•2y ago
harsh-harlequin•2y ago
Those are the Heater Connectors
thnkas, found them. so i can just take the connectors from HE 1 to HE 2 for example, and start it up enad try?
harsh-harlequin•2y ago
You have to overwrite the PIN in the Printer.cfg afterwards
we,, that someting i need some guidance with lol
harsh-harlequin•2y ago
Easy, at the bottom of your printer.cfg is a part named User Overwrites
There you just paste
For example for HE1
harsh-harlequin•2y ago
There you find the corresponding Pins
so for HE 2 its PB10?
its a little blurry lol
harsh-harlequin•2y ago
Yes
harsh-harlequin•2y ago
GitHub
BIGTREETECH-OCTOPUS-V1.0/BIGTREETECH Octopus - PIN.pdf at master · ...
This is Octopus open source material. Contribute to bigtreetech/BIGTREETECH-OCTOPUS-V1.0 development by creating an account on GitHub.
i will give it a try now
Do you have a sock? Which hotend and fan duct?
Ah I should read better
Does it heat at all?
yes it does
cant find the heater_pin
If it does heat it's probably correct
or should i just add it?
It just doesn't heat as fast as expected, due to wrong PID settings or cooling heating the heater too much
its been working before. and then it came a few times. then i just restarted firmare and it worked, now i get it alot
It looks like it might be struggling to overcome the fan cooling
It is quite slow to heat even at 100%
Photo of your ducts?
And which fan?
struggles with tha fan off aswell, when it starts to heat before it starts to print
That's strange, could be defect. Measure the heater resistance to see if it higher than expected
could you tell me how to measure it? please ignore my ignorance
Disconnect, use a multimeter
But a 4028 at 100% might be a bit much
it is, i only use 20% and 40% for bridges. but when i put the fan at 40% and do a pid i get the same result. but its not always. but now its been more than before
[verify_heater extruder]
max_error: 200
That will reduce the strictness of the verify
where do i find that?
Put it in printer.cfg
under this?
Yes
i changed heater pin aswell, shoud i add that also under that?
harsh-harlequin•2y ago
Yes
But why? It seemed to heat, just not fast enough
like this?
harsh-harlequin•2y ago
Just to check if the Mosfet or anything has a problem, faster to switch and check then to go through complete Troubleshooting with a newbie
Yes
If the MOSFET is not fully open, it will overheat quickly, so I wouldn't expect the MOSFET to half work
But fine as a test just in case
harsh-harlequin•2y ago
It is a 5 minute check to see if we have to go further into detail regarding the MCU or the Toolhead 🤷♂️
and how do i do that?
Did you change the pin and screw the heater in the different port?
Do you have a multimeter btw?
yes i have a multimeter
i put the heater pins in a different port
Measure the resistance of the heater when it is unplugged after testing this
should i make the pid first and then measure after?
Doesn't matter
But measure when cold
i get 0.01 when i measure it
then you should put your multimeter on Ohm
on the lowest range
14.9
great it's 40W and 24^2/40W is 14.4
I am surprised that the revo is only a 40W PTC!
compared to 105W for the CHC or rapido
the revo isnt a hf heater
and because it is a PTC, it's power will reduce when it gets hotter
so I can image that it struggles to keep up when it is hit by a 4028
yes, but i will tryi pid now nd see
the heater seems fine at least
thats at least one relief
fan doesnt seem to start now
i may have disconnected som cable by misstake. where does the fan cables connect?
harsh-harlequin•2y ago
Just like you see on the RatOS pictures, we just changed the Heater Pin nothing else
harsh-harlequin•2y ago
yes i know. im just thinking maybe i took some cable out by misstake. this is how it looks like
tha black one thats on HE 1 is from tha 2048 aswell as the others thats not connected
i feel like the red cable should be somewhere, the one that looks orange int the pic
fan]
pin: !fan_part_cooling_pin
cycle_time: 0.01
should it say that?
harsh-harlequin•2y ago
The red one goes to the + on HE1
but its a connector on that cable.. there was never anything in + on HE1
harsh-harlequin•2y ago
You are right, forgot the 4028 is probably 12V then it goes to the Pin in the Fan Header
like this?
harsh-harlequin•2y ago
so the left pin?
harsh-harlequin•2y ago
Yes
ok ill try it
still nothing when i turn it on i ratos
harsh-harlequin•2y ago
You still don't have the PWM Pin connected 😉
and thats..? 😂
harsh-harlequin•2y ago
https://os.ratrig.com/docs/guides/4028
It's all documented
Connecting a 4028 fan | RatOS
4028 server fans are becoming a popular option for part cooling because of their light weight and great pressure and flow rates. In this guide we'll go over how to connect one and use it for part cooling. 4-pin fans usually aren't used in 3d printers, and many boards only provide 2-pin ports, but fear not! There's always a way.
so it should sit next to the + that u showed me?
this should be it if im not to stupid?
or am i thinking wrong?
did you check your jumper positions?
aren't they all in the 5V position now?
really, just read that guide well
for a PWM fan, you want to use the alway on port with a jumper on 12V and let the PWM signal come from a different port with no jumper at all, or if that doesn't work with a 5V jumper
those to the left of my cables are jumpers if im not wrong?
yes
read carefully and understand it before you do things
wrong voltage can do a lot of damage
i didnt turn the printer on yet lol. having a hard time understand fully since english is not my first language
what do you have plugged into the first and second slot?
1- 2048
2- hotend fan
3- pwm(?) 2048
4- 2048
ok. so 1: 4028 12V
2: toolhead fan
3: PWM
4: 4028 GND
but you have all jumpers in the 5V position, so I assume that none of your fans are spinning
The green bars are the jumper positions
hotend fan is spinning when i heat the nozzle
I would go with:
It should be:
1: 12V
2: 24V or 12V, don't know which fan you have
3: no jumper (use internal pullup in the fan) or 5V
4: no jumper
if you use no jumpers, the leds on the board will not light up
so if you want leds, you should use the 5V position for PWM
but probably very slowly if you use 5V
thats relative, its been like that since i bought it.
and what i understand the pwm is sitting in the 5V now in the picture?
yes
so if i start the printer and turn up the 2048 it should spin
@miklschmidt it would be good to add an arrow or text on that page to say what the 5V, 12V and 24V positions are, instead of just showing the green jumper positions
it's still 4028 😉
well, did you correct your jumper positions?
i have not done anyting else than putting in the connectors on the board 😄
those jumpers select the voltage of each port
understand it and fix it, I have explained what they should be
wait... https://github.com/bigtreetech/BIGTREETECH-OCTOPUS-V1.0/raw/master/BIGTREETECH_Octopus_EN_updated_0719.pdf
page 16 says top slot is 5V position?
@miklschmidt is that image in the ratos instructions wrong for the PWM pin? I don't get it anymore. I don't have an octopus myself
yes, you had all the jumpers on 24V
so in this picture, what i understand, the top jumper is set to 12V and the 3 last ones are 24V?
which will damage the fan if you turn it on
GitHub
BIGTREETECH-OCTOPUS-V1.0/BIGTREETECH Octopus - PIN.pdf at master · ...
This is Octopus open source material. Contribute to bigtreetech/BIGTREETECH-OCTOPUS-V1.0 development by creating an account on GitHub.
well, that super strange as i have not even touch the jumpers, i just accidentally took out 2 cables
it doesn't ship with the correct jumpers, you have to do that yourself
i know, but i bout this machine already built, and ive printed with it for about 1 month
bought*
but the 4028 is new right?
no its not
the jumper settings are fine for 24V fans
which 4028 do you have?
the fan stoped work when i changed the hot end heater cabled, so i assumed i accidentally took out some cable for it without seeing it
i will give u a picture
And that should tell me what voltage it needs?🤣
😂
well now i can give u a surpise
What do you mean wrong? Positive terminal isn't used
it not a 4048 lol
guy i bought it from said it was. 4048
4028**
Thats a 12v fan
I know, but still safer to put the jumper on 12 or 5? I think there's a pull-up resistor through an led. The green indication that it should go on 24 is strange
the top connector is jumped to 12 right?
probably the pwm should go there?
It's the default. I guess i could just remove it.
I think there's a pull-up resistor through an ledTo 5v maybe, not to V_FAN. Will check the schematics (i'm pretty sure i did this before)
On the skr it's to vfan, but that doesn't have voltage select
Didn't check the schematic for octopus
Yes, wasn't the fan plugged into this one?
Use no jumper on PWM port
thats what i dont know
Well!
well thats chinese for me 😂
So to vfan, and a freewheeling diode for the reverse current
yep, wonder how i haven't killed any fans yet
Because 4k7
yeah but still kinda risky
I'll remove the jumper
I guess you're stuck with it on boards that don't have voltage selection though
(i've used 4-wire fans with quite a few of those too, so it's prolly fine, but still)
Must be, or your fan would be dead already
well, i have to cables i dont know where they should go i i dont think its dead
xenial-black•2y ago
I received this error as well.. did a PID test (PID_CALIBRATE HEATER=extruder TARGET=210) and if I use the fan at 100%, the test fails, tried again with fan at 25% and test fails.. tried again at 10%, tests fails.. the only time the PID test worked was with th fan off.. This is a new printer and the test cube printed just fine.. this error happened on another item I wanted to print..
Please make a new post