Products > 3D printing
Temperature instability triggering thermal runaway protection.
Refrigerator:
--- Quote from: thm_w on October 07, 2021, 09:06:02 pm ---Use a silicone sock if not already. Basically no reason all printers should not have one on.
Could you tell when you pointed the fan if the heater FET came on 100%? Or whats it at for regular printing speeds.
--- End quote ---
I was too focused on pointing the fan right to pay attention to the duty cycle.
But i've since noticed that the heater is very sensitive to airflow so i might actually go and swap the heater cartridge to be sure.
Changing the settings around did help with stability but it's by no means perfect yet.
Refrigerator:
Swapped the heater from my old V5 and noticed almost no difference. I guess this is as good as it gets :-//
thm_w:
silicone sock?
Refrigerator:
--- Quote from: thm_w on October 13, 2021, 08:12:15 pm ---silicone sock?
--- End quote ---
I'll try to make one, i think it would be fun to do some molding with a 3d printed mold, much like Stephan from CNCkitchen did.
I don't have any two component silicone, but i know a secret to make RTV act like two component silicone and harden in like 30 minutes. :-+
Refrigerator:
Also since i ripped my old V5 hotend apart i had a spare thermistor so i glued it to the bottom of my heated bed and enabled heated bed PWM.
And after an autotune the temperature at 50oC is stable within less than +-0.5oC. :-+
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