Recent content by NathanSM

I think I will try to find some actual resources that can help me study electromagnets and their construction. The main reason I was so confused is that I've got a literal pound of copper on that coil and I'n not even able to retain a two pound weight in the tube. Hopefully I can find some...

How do I construct a return path

That looks exactly like my unit. The aluminum tube is .125 inches thick. What do you think I could do to safely make this magnet a lot stronger? Different wire size, amperage, or materials?

I will try to test with different materials. I really am unsure why the magnet isn't getting strong. I don't think I wound it wrong, all the layers are wound clockwise. One thing that may affect it is that I am coiling around a 6 inch section of the tube, while the aluminum tube is 2 feet long.

The rod was more than half the diameter of the tube, filled most of it up. 1200 turns. the coil is six inches long, the rod was maybe a foot. I am not sure how powerful I am expecting it to be but I would hope 1200 of feet of 17AWG being powered by well over 30V would be at least more...

I wasn't measuring anything in an intellegent way. I had a thin steel rod in the tube that I was holding with my hand, while I increased the amperage

I recently posted about an air cored electromagnet I was designing. It currently uses 300' of 17 AWG magnet wire, coiled around a .5'' diameter tube. I purchased a DC to DC step up to test different voltages and currents. I noticed while using it that regardless of what current I supplied...

Im beginning to believe that since doubling the wire length did not affect strength, voltage drop is the issue. I may purchase DC-DC boost converter and try to run the circuit at a much higher voltage and see how this affects the strength.

How did you get .7 amps? I am rather confused, a lot have people said use thinner wire as my setup has too little turns/resistance. I double the amount of wire used instead. This still increases resistance and turns but I've got a weak magnet that is drawing 7 amps, and heating up.

Got not even a volt.

Currently I am having an issue I do not understand. When plug the 14V battery into a length of wire with 1.6 ohms of resistance I only read 7 amps.

Ill check those out, I will have to cut slots anyway for some sensors.

That shouldn't be too signifigant should it?

I did mean 6". I am not really farmiliar with saturation. Is this like a limit as to how fast I can make a ball bearing can go or with how much strenght it can be held within the field?

That is what I thought. Today I am doubling the length of wire on the coil, so hopefully that will help.