Azteeg x3 Power Supply

Does anyone have a recommendation for a 12V power supply for the Azteeg x3 3D printer control board? I'm hoping to use the QU-BD Hot End with a heated build plate.

Azteeg x3 recommends a 12V, 20A supply but I don't want a PC power supply or an open frame supply. Is there an off the shelf laptop power supply I could use that's under $20? The Xbox power supply would work but it's too expensive. Is 20A a conservative number? Could it be 15A? 10A? I'm still looking too. Thanks!

[reprap.org]
above is link to info on this controller board.


you will want enough current to power steppers and heater. heater uses about 4amps at 20v depending on resistance. 5-5.6ohms. you will want at least 7amps for motors and heater, as well as powering the cpu logic. most laptop supplys are 18v-19.5v

if you need a heated bed then you will want a seperate 12v supply. best source is lcd tv's at least 10amps 12v. also lcd tv supply of at least 7amps if you want to power just reprap machine.

Edited 1 time(s). Last edit at 02/10/2013 08:31PM by jamesdanielv.