sd_matt wrote:If I understand things correctly you have a single wire going into each magnet, it winds many times, and then leaves (back to the flange).
Yes. It doesn't have to return through the same support. Minimum 3 supports per coil for structural stability, but more likely 4 per coil to keep everything symmetrical and allow more cooling system connections for continuous operation. Could use only two supports as conduits or use all four with a bifilar winding. Think superconductor surrounded by coolant layers in nested pipes (LHe, LN, H20). Unless diamond RTS pans out.
sd_matt wrote:Could or is each coil a single circuit?
They can be separate circuits if the per-coil supports are used, and I think they are in WB-7.1+. Independent control of coil current and coil case potential is then possible (either for perfecting the overall field symmetry or for intentionally weakening one or more coil fields, but the latter is probably way downstream). The default nubs configuration with only one coil anchored wires coils in series and would be extremely difficult to cool.
sd_matt wrote:Is it a single wire winding many times through each magnet?
Yes. Unless you go bifilar.
sd_matt wrote:Could you strengthen the field surrounding the supports by adding extra windings through the supports, lets say, alternating between the windings going just through the coil and then going through the coil and supports?
Ie. You have a coil with a wire that loops fifty times ( just throwing numbers ) through the coil itself and about five times through the supports.
The supports are insulated and are not as big a draw for electrons (which are fewer outside the magrid anyway) compared to the metallic, positively charged nubs. Not necessary.