Here are a couple pictures of the power supply that I am building for my 9x20 CNC conversion.
I designed a power supply board to make building power supplies easier.
The first photo is a picture of the PS board. The second is the components mounted on an aluminum chassis that I formed at a friends shop.
My ps chassis has my PS board, an Antek toroid transformer 23V 400VA to provide power, a 35,000uf 80v filter capacitor, (2) Superior Electric SS2000MD4 drives, and a CandCNC mini-io breakout board. It outputs about 32V dc at around 16amps. Should be enough??
The power supply board has a full-wave bridge to rectify the AC, a surge limiter to keep input surge from doing bad things, a bleeder resistor, connections to the filter capacitor, and four fused outputs to the drives.
For the lathe I only installed two fuse holders and two drives. I plan to use 2 PacSci 253oz. steppers, one to drive the leadscrew, and one to drive the crossfeed.