Are any of. You guys with big silicone beds using solid state relays to power them. My ramps 1.4 board cant deal with the amps my qu-bd bed pulls. It starts for just a second and shuts down.
I ordered a 40 amp SSR from amazon to add into the circuit. Just curious if any of you had done this already.
Sounds like the right way to go; a mechanical relay would never handle the PWM switching.
I’m using one, and it works great.
Have any pics of your wiring setup
I’m using one for 110v silicone heater pad, works amazing.
are you guys running PID or Bang Bang in marlin?
@Joe_Spanier
Sorry, no pics, currently in a big overhaul/redesign of my extruder.
I’m using PID, no problems. Wiring is simple, just keep in mind that polarity is critical for the input side of the SSR.
I am using a MOSFET and bang bang. Works well for me.
@Wayne_Friedt you’ll get a quality improvement if you go PID vs Bang Bang. BB is seriously terrible.
@Joe_Spanier PID
@ThantiK Ya thats what i keep hearing. I have never been able to successfully load the firmware into my printerboard. After configuring the Confh.h file the generate the HEX file. That’s all OK. But when i go to flash the ARV dude says file name incorrect. I have changed the file names to match. I never got into it farther as BB was working. I think it may also be a HID bootloader thing. I should try a different bootloader. This why next i will use RAMPS and Arduino or some other flavor to get away from this type of flashing the firmware.
@Joe_Spanier got a link to the SSR and silicone heat pad you’re using? Thanks!
We replaced the MOSFET on ours with a bigger one. Helps to have real EEs working with ya. They can do all those tricksy electronic maths and stuff. 