Gregory's Server@skobkin yea i similarly thought using electromagnets should work.. you would need a grid of them smaller than the pieces for the motion to be smooth, but im not sure why people use other approaches.
|
16 comments
 @skobkin if you dont mind jerky movement that might work... in practice id imagine it would be harder than it seems (or else it would have been done) @skobkin well there are chessboards that move pieces though.. a few models.. the reason i think it may be harder to do is becasue why would they build all these fancy robots inside the board that use magnets to move it.. surely the first thing they tried was a grid of coils.. surely, at least before designing a hoard of robots inside the damn thing.  @freemo @skobkin im not so sure of that.. i mean wire isnt that expensive, and those robots need to communicate nad have processing power... id imagine the coils would be cheaper, at the very least affordable.. just taling about some chunks of iron and a bunch of wire. @skobkin yea this is one of those things we would have to test.. im not even sure how much power youd really need. @freemo But... Moving pieces are still fun! @skobkin usually electromagnets using thin wire wth many turns @freemo Yeah, it's more efficient, but minimally sufficient thickness of the wire is still a thing to determine. Also a subject for modeling and calculation... All this sounds like a very interesting engineering project. @skobkin very doable without much advanced EE... but still a tehcnical challenge. Sure, would be fun. @freemo @skobkin being done with a small ball: https://incoherency.co.uk/blog/stories/electromagnet-grid.html @freemo |
@freemo
Yeah. We already have Qi chargers which utilize coil grids to charge multiple devices at once almost in any position. It most likely is just about scaling this and using more power 🤔
I personally also wouldn't mind if the pieces move in one quick slide from one position to another. I think it's possible to implement with only 64 coils (or even less). If we need to move a piece to an adjacent position, we can power up target coil with high voltage and other coils nearby with lower so only the piece which is not being held back would move 🤔
Using pulse modulation in combination with real-time position computation can also allow more smooth movements with reduced number of coils...
Looks like we just invented a magic chess board 🤣
@freemo
Yeah. We already have Qi chargers which utilize coil grids to charge multiple devices at once almost in any position. It most likely is just about scaling this and using more power 🤔
I personally also wouldn't mind if the pieces move in one quick slide from one position to another. I think it's possible to implement with only 64 coils (or even less). If we need to move a piece to an adjacent position, we can power up target coil with high voltage and other coils nearby with lower so only...