I agree that regular printer steppers would be weak but I saw a BIG large format printer at the salvage yard and was thinking that it might contain useful steppers but gears would be useful in giving them an increase in ability to turn the shafts. Power supplies are easy, I have built several and there is always the electronics box at the local recycle center and thrift stores, there are always a good selection of power supplies in a variety of voltages and current outputs. I do like the suggestion to use printer steppers as a learning tool and will definitely do that. Right now I am in research and learn mode as well as collecting things that will be useful. Thank you for your input.