Zeusex's latest activity

We measure precisely the force needed to detach the metallic valve from the bracket. I know that this is not a real measurement of the...

Alright, some update. We ordered some symmetric brackets, which much tighter holes for the pin (core) and also, with pin diameter...

Symmetry is not a likely reason for magnetic differences. Open gaps in the magnetic path, are a more likely cause. What material is...

Brackets I have are from 1010, 1020 and SS430. 2mm thick. Laser cut blanks and then bent. I know that cold work on steels and stainless...

Yes same gauge (0.24mm), pure copper and enamelled. Core (pin) is from 1010, also tried 1020, SS430 and a random iron bolt I found. 1010...

Measured the amps on our coil, it is same as the reference, 0.45A. Tried the bolt, but the pin made of 1010 was more magnetic compared...

1010 is a mild steel too which is why we selected it.. I don't know what grade is the bolt I found, hopefully A36

That is not critical. Use the greatest available diameter unless the magnet is switched on and off very rapidly. Use an uncoated iron...

Thanks. Tomorrow I will try to replace the pin with a cheap iron bolt. How close the bolt diameter to be in relation to inner diameter...

You should try soft iron or mild steel for the pin, not stainless or high tensile steel. The more the pin material costs, the worse it...

Can there be a shorted turn in the coil and yet the overall resistance be as needed?

Alright. I used the same power supply for both magnets. This power supply can delivery upto 10A. We tried 1010 steel, SS430 and did not...

Bracket is not symmetric at both ends of bobbin. Can this cause magnetic field leak and make the magnet weaker by ten times?

DC 12V. Yes wire gauge is same (0.24mm). Reference consumes 0.45A. I haven't measured what our coil consumes yet. I can measure...

Hi Guys We are a bunch a mechanical engineers trying to build a simple electromagnet. Our design is based on a very similar magnet...