Hi Dust,
I think I wasn't able to explain nicely the issue.
The issue is with the hotend. The heated bed behaves correctly, it gets powered on and off as expected without making noise.
The hotend gets powered on and off several times per second, and the relay will be noisy.
So the issue is with the hotend being powered on and off too much frequently, is there a way to avoid this?
BTW I just discovered there are SSR (solid state relay). They should be based on MOSFETs, so there shouldn't be noise at all when powering the circuit on and off, and they shouldn't suffer from powering on and off too frequently as there isn't a physical part which moves forward and backward.
Would you recommend that?
I think I wasn't able to explain nicely the issue.
The issue is with the hotend. The heated bed behaves correctly, it gets powered on and off as expected without making noise.
The hotend gets powered on and off several times per second, and the relay will be noisy.
So the issue is with the hotend being powered on and off too much frequently, is there a way to avoid this?
BTW I just discovered there are SSR (solid state relay). They should be based on MOSFETs, so there shouldn't be noise at all when powering the circuit on and off, and they shouldn't suffer from powering on and off too frequently as there isn't a physical part which moves forward and backward.
Would you recommend that?