Maybe after a while you wouldn't notice it, but I still think every 15 seconds hearing a click would get annoying. I guess it would also depend on how loud it is over normal (and unavoidable) sounds the printer makes such as steppers and fans.Quote
enif
If you go with the cheap 40A mechanical automotive relay (as I do), you can change the BED_CHECK_INTERVAL from the default 5000 to 15000. This reduces the clicking sound mentioned by cdru to max. once every 15 seconds, so it's no longer an issue (at least for me). But the temperature of the heated bed will still be kept to within a few degrees from the target value. In Marlin the BED_CHECK_INTERVAL is in Configuration_adv.h, in Sprinter it's in Configuration.h.
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Re: Rambo 1.1B 2 heated beds and 1 extruder?
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