Cooling at lower layers reducing hotend temp and triggering fault
Hi! I'm running EVA3 with a 4020 fan, BMG and V6 with Bondtech CHT nozzle, RRF, on my V-Core 500.
I can print at quite fast speeds with this (150mm/s), but I'm having a lot of problems on some models like a Benchy where the nozzle temp drops from 215 to 196 and then triggers a heater fault.
I have PID tuned it, but it doesn't seem like the heater can keep up. I have a silicon sock on but that's apparently not enough.
Is there anything I can do to fix this other than swap the hotend for something else? And if I did how would I know that wouldn't have the same issue?
9 Replies
harsh-harlequin•17mo ago
What wattage heater are you using on the hotend?
extended-salmon•17mo ago
It’s a stock V6, can you get higher wattage replacements?
harsh-harlequin•17mo ago
If it’s stock then likely a 40w heater. You can step up to a 50w heater.
extended-salmon•17mo ago
(I got whatever RatRig sent! 😂)
Oooh thank you, I will upgrade that and see if it helps, really didn’t want to replace the whole thing
harsh-harlequin•17mo ago
You can pull the heater cartridge out and check it before ordering just to be sure. Wattage should be on it
extended-salmon•17mo ago
Awesome, thank you!!! 🤗
ambitious-aqua•17mo ago
Depending on the cooling, more powerful heater won't help
A silicone sock or other insulation solves this usually, specially if you have a thermistor M3 screw version that hangs a bit outside of the block
Then lowering the fan speed obviously, or taping some kapton tape for "added" insulation has been effective for me
extended-salmon•17mo ago
I have a silicon sock on
so I seem to have the 30W heater, so I'll try and find a 50W alternative and see how that goes
if that doesn't help I will get dr frankenstien with kapton tape 🙂
thank you!
ambitious-aqua•17mo ago
Np, 20w extra will likely help a lot in this case 👍