Hello Don

I sure agree that Jim Stanton model is a superb achievement.

Concerning the magnets, the gap needed in terms of distance of attraction depends quite obviously on the size and strength of the magnets and the amount of attraction needed or desired.

The best method I have found is to experiment before using any binder (glue / cement).
Some thin cardboard typically 0.005" to 0.010" thick and layers of paper typically 0.002" to 0.005" thick can be cut to initially occupy the space that the binder will occupy and help determine the gap appropriate for the specific application.

In one use I actually left the cardboard and paper in place and saturated them with diluted epoxy.
There should be some epoxy underneath and around the periphery in orde not to rely on the adhesion of the top surface only.

One magnet alone can be used attracting to a piece of magnetic metal like tin can or screw head.
Two magnets can be used in the proper polarities for attraction. This may need a longer gap.

Ya ___it all makes sense ___doesn't it ?

Remember that magnets are easier to separate sliding away than pulling straight out.
Provision for separation has to be figured out. A small tab or tiny screw head that can be grabbed with fingers is appropriate.

Zor

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