I used N52 rated magnets which are very strong. In the pic below it shows the actual hardware used for my builds. The magnets are that far apart or else they will fly toward each other. Each magnet is 10mm in diameter by 3mm high with an M3 sized hole. Pan head screws (countersunk M3s would work better) are M3 type mated to an M3 brass 5mm standoff since it is smaller than an M3 nut and fits in the plastic screw channels where a regular M3 nut would not. The other countersunk wood screw is a #4x1/2" size. The top screw bosses have to be cut down to allow for the magnets. The bottoms don't, but I do remove the lip from the edge using a nippers.
With all those 10mm N52 neodymium magnets holding the hull on, it only separates when I want it to. I do the same treatment to the turret. You can see from the turret bottom pic how the brass standoff is used as a nut. Since they are countersunk magnets you need to buy a north and a south type for them to stick together:
https://jc-magnetics.com/Magnet-N52-...scription=true
With all those 10mm N52 neodymium magnets holding the hull on, it only separates when I want it to. I do the same treatment to the turret. You can see from the turret bottom pic how the brass standoff is used as a nut. Since they are countersunk magnets you need to buy a north and a south type for them to stick together:
https://jc-magnetics.com/Magnet-N52-...scription=true
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