Hi guys, I have a few question to ask.
I finish the mechanicle part of a small version of the Phoenix,
a John C Kleinbauer design(thanks John) , cuttting area of just
7''x11'',I'll be using it to engrave and cut plastic. The stepper
motors are 60 oz in, 6 wires, 2.3v, 2.3a, 200 per rev, and I just
ordered the HobbyCNC Pro Chopper Driver Board Kits. I want to use a
450w atx 12v pc psu, the max output for the 12v is 20a.
First question. I saw a psu mod on the HobbyCNC page which consist of
connecting 2- 8 ohms 20w power resistor in parallel to the 5v lead which equals to 4 ohms, the problem is that I can't find any at that spec, would 1
25w 5ohm work ok? I tried it but seems to getting hot
Second question. So now I have the machine, pc, and soon the controlleur,psu, the sofware(TurboCNC) . What else would I need, hardware wise to get this thing going ?
I'm not looking for speed or power, just an introduction in the world
of hobby cnc
Thanks, Marc..