Making an as proper magnet as possible?

[Cadde]

Yeah, I've been looking around for a long time now and experimented but i can't seem to be able to make it work as it should.

I want a magnet (South and North pole) capable to lifting 12 kg of steel.
The magnets should repel when facing North - North and South - South and attach on N-S S-N
I have tried making separate collision groups for attraction and repulsion but no matter what i try i usually end up with a magnet that can't repel or can't attract to itself.

Beyond that, even when i am using Quadratic falloff the magnets seem to pull really hard so far away from them that they behave more like supermassive stars the moment i want them to be able to hold up that 12 kg steel box.
I'll take whatever help you can give, i know attraction isn't magnet physics but lacking the magnet physics in Algodoo means i have to try and make it work as best as possible.

Thanks for the help!

[Chronos]

Hmm, I really don't know. You could try playing around with the mass and density of the 'magnets'.

[Cadde]

Hmm, I really don't know. You could try playing around with the mass and density of the 'magnets'.

Yes, that's what I've been doing, making the "magnet" smaller makes it weaker. Upping the density makes it stronger.
The reverse ofc is true for upping the size and lowering the density. The problem is that they influence too large of an area around them and they cancel eachother out.

EDIT: And my last test did something i haven't mentioned yet. When they're attracting nicely in a stack of 5 they start rotating instead when turning off gravity... They shouldn't be rotating by themselves, otherwise we have a perceptual motion engine and that is impossible!