Hi, I swapped over from Afterburner to a Stealthburner finally yesterday. I noticed today when printing PLA it would stall out once the fan kicked in, as it blows a LOT more air. Having this isue now on a PID tune, and this is with 25% fan and also 0% fan. (part cooling). Any suggestions on a possible fault? Thermistor? Heater Cartridge?
Voron 2.4, Phaetus Dragon HF with stock heater & thermistor.
#"Heater Extruder not heating at expected rate"
1 messages · Page 1 of 1 (latest)
repeat your PID tune with the part cooling fan running at the rate it was struggling to keep up
did you swap the Heater cartridge or thermistor? if yes make sure you have the correct designations in your config. Also make sure your hotend is sitting in the correct spot and not too low.
not yet. The hotend is just standard i haven't modified it, just using it with the standard Dragon STLs for SB
I can't even get it to run a PID with the fan at 0%
so something I'm guessing has failed, going to try swap the heater first
are you using the same hotend/heater/thermistor as you did before?
sounds to me like either a weak/broken heater, or too much resistance in the wires going to the heater.
yeah exact same, didn't touch anything just moved everything from the Afterburner toolhead to the Stealthburner toolhead after putting the upgrade off the past 2 years lol
worth making sure you have no odd bits in your extruder temperature configs either, like a max_power of anything else but 1.0
make sure your connections are solid 😉
I just wrote in the voron_electronics section too and someone else mentioned that, but yep confimred it's at 1.0. I should just remove the . and make it run at 10 lol
it'll error out if you do that
another guy just mentioned that it's taking 5 mins to get to 240 so most likely underpowered heater cartridge.
I'll swap it out in the mornig and report back
Note: best to avoid cross posting
will do, just didn't know where to put it!
Electronics is probably best for this sort of thing
It tends to have a more specialized audience
ok great, thank you
could u solve your heating issue in #voron_electronics or are u still in need of help?
Hi,
Yes managed to solve it. I swapped it for another 40W heater cartridge from Trianglelab, it worked "better" but with no fan. Ultimately it seems as if my 4010 hotend fan is now funneled through the stealthburner, as opposed to having a lot of open space on the afterburner. So if anything, it was overcooling it.
I have since put a 50W heater cartridge on and had no issues with cooling fan on too.
awesome glad to hear 🙂
would be great if u could add the "solved" tag to this post so people know - thanks. 🙂
Have just done, thank you for that
Will provide some details in here in case someone else has an issue:
Think I got to the bottom of the 'Heater extruded not heating at expected rate.
The Afterburner cooling, is a much wider area. It doesn't stack the airflow through the heatbreak but around the entire unit. Look at the two entries here. in this pic highlighted in red.
So first of all I swapped the Heater cartridge to one from my old Ender 3 that I had lying around with maybe <10 hours on it, as moved to an E3D Trianglelab V6 setup on that unit, and had the leftover heater cartridge. Still heated up at the same rate, so decided to go back and put the Afterburner hotend back on, to see if that made a difference.
Anyway, these are the test results.
This is with 0% cooling fan on.
I ended up putting a different cartridge on, the Trianglelab 40W 6x20mm as I thought, surely the other heater cartridge couldn't be faulty, but I have it as a spare anyway so why not. It definitely improved, but still takes approx 3 mins to get to 240degrees on the Stealthburner, with HOTEND fan on at 100%.
Trying to PID tune at 0% cooling fan works now, however if i went to 25% cooling fan, it would fail. Decided to swapout the thermistor as well, from a Generic 3950 to a 104NT-4-R025F42G and update the printer.cfg file too.
Ran PID on both 0% and 25% fan and both work. So might just be a bit worn out both the heater and the thermistor. I'll get a graph up shortly
I did also notice the Afterburner cooling ducts are more around the nozzle, whereas the Stealthburner do point more towards the heat block. Height is all ok, just the angle of where it goes.
Also, the Stealthburner does have 2 small holes in the ducts which puts airflow from the hot end fan through the ports to reduce them I'm assuming from deforming with extreme heat from the hotend.
Guessing the extra airflow was cooling the hotend block too much and the 'older' 40W couldn't keep up.