I'm building a heated bed, it will draw more current than ramps will allow, so I was wondering about the effect of putting either a pot or just a single resistor in series to raise the resistance so I can drive it off ramps. I'm looking at a seven switch, but it would be nice to use the bed now.
The question is;I'm using resistance to make heat, so will the pot or resistor get astoundingly hot? I could work a single series resistor into the heating loop, thereby using its heat, but I sort of prefer the pot idea so I can tune.
Thanks
Ian
Ps, also, how would I choose a suitable pot with a range of 0 to 2 ohms?
The question is;I'm using resistance to make heat, so will the pot or resistor get astoundingly hot? I could work a single series resistor into the heating loop, thereby using its heat, but I sort of prefer the pot idea so I can tune.
Thanks
Ian
Ps, also, how would I choose a suitable pot with a range of 0 to 2 ohms?