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11-16-2014, 05:58 AM #10
Jim,
Go to your local Radio Shack (or equivalent). Buy a 5 Amp car horn relay and some 14AWG multi-strand wire. Go home (Straight home, dammit!)
Run the 14 AWG from your power supply to the heat bed via the relay. It is only the +ve wire that needs to be cut so that it is can have the relay connected into that path.
Use the 18 AWG wires to connect the other poles of the relay to the RAMPS board.
Now the RAMPs board will switch the relay on to allow free flow of current along thick wires from the PSU to the bed.
DO NOT - repeat - DO NOT fit a relay similarly between the RAMPS board and the extruder heater resistor unless you want to let the smoke out of the components on the RAMPS and Arduino boards.
Then go to your local bar and buy a beer for Old Man Emu.
Have a look at this: http://3dprintboard.com/showthread.p...formance/page2
OMELast edited by old man emu; 11-16-2014 at 06:07 AM.
Please explain to me how to...
05-17-2024, 12:15 PM in 3D Printer Parts, Filament & Materials