Xbox PSU RAMPS wiring November 03, 2014 03:29AM |
Registered: 9 years ago Posts: 99 |
Re: Xbox PSU RAMPS wiring November 03, 2014 07:10AM |
Admin Registered: 17 years ago Posts: 7,879 |
Re: Xbox PSU RAMPS wiring November 03, 2014 11:15AM |
Registered: 9 years ago Posts: 99 |
I am terribly unfamilar with electrical terms. Could you please elaborate?Quote
nophead
Yes you can just about run a full machine with a 10A heated bed. I have run a Mendel90 from one.
Mine has three 12V wires, but however many it has I would common them before splitting for the two RAMPs inputs for best load balancing in the cable.
Re: Xbox PSU RAMPS wiring November 03, 2014 12:04PM |
Admin Registered: 17 years ago Posts: 7,879 |
Re: Xbox PSU RAMPS wiring November 03, 2014 12:27PM |
Registered: 9 years ago Posts: 99 |
To clarify, solder the four 12v and four ground to each other. Then for each ground and 12v, solder two higher gauge wires and have one go to 11a and one to 5a. Is this correct?Quote
nophead
Say the XBOX cable has three or four 12V wires then connect them all together to make a star point and then follow that by a Y junction made with thick wire where each branch goes to one of the RAMPS inputs.
That ensures that regardless of the what split of current is on the two RAMPS inputs, all four XBOX wires will share the total current equally and give the smallest voltage drop possible. If you arbitrarily pick a split in the wires it will only be optimal if the RAMPS inputs take current in that exact ratio and since it varies massively depending on what the heaters are doing it will always be sub optimal. This is particularly relevant because the XBOX wires are long compared to say an ATX PSU.
Re: Xbox PSU RAMPS wiring November 03, 2014 12:39PM |
Admin Registered: 17 years ago Posts: 7,879 |