The LM317 chip of my 4 axis board is getting pretty hot. My motors are running at 2Amps, I have 3. One of them is at 1.5.
It gets hot quickly after startup, not sure if this is normal or not. It has not yet shut down, i believe this is the one with a thermal shutdown so if it has not gotten that hot, i suppose thats good.
Should i try to make some type of an elaborate heatsink or what?