Make your heated bed with resistors, which you can mount onto a aluminum plate.
Put two of these in series at 12V. You can power them off your RAMPS board.
We tested these and were able to get 50 degrees C in 5 minutes and 80 degrees C in 10 minutes.
Looking for a comparable product to the Heated bed resistor ( 4.7 Ohm )? Explore our selection of similar alternatives in place so that you always have a variety of options for any project. Feel free to reach out to us for advice on the alternatives.