More power
Sep. 5th, 2011 09:32 amI ordered two new power supplies for the 3D printer. The heated print bed is basically a big 1.2 ohm resistor. At 12 volts it draws 10 amps and so only puts out 120 watts, which isn't enough to get it up to the desired 110*C. The recommendation of the group is to run it at 24 volts at 15 amps or 360 watts; the guys that have switched to that power supply can hit 110 degrees in under 2 minutes.
I also went ahead and got a separate 12v/12a power supply of the same form factor so that I can just put them both in a box and not screw around with this hokey trying to use an ATX power supply for something it wasn't designed for.
While shopping for 24 volt power supplies it was apparent that there are a lot of people toying with CNC at home. And it's surprising how cheap really hefty power supplies are these days.
( G+ comments after the cut )
I also went ahead and got a separate 12v/12a power supply of the same form factor so that I can just put them both in a box and not screw around with this hokey trying to use an ATX power supply for something it wasn't designed for.
While shopping for 24 volt power supplies it was apparent that there are a lot of people toying with CNC at home. And it's surprising how cheap really hefty power supplies are these days.
( G+ comments after the cut )