I need a solid stand for the speakers bass to perform at it's best, so I set to on a mould for a cast concrete plinth.
The base board is melamine faced chip board, I sat the speaker on the
board and drew round it with an indelible pen. The guide lines for the
wood shuttering were drawn parallel to this with a slight increase in
overall dimensions to allow for 12mm chamfered top edges. The face
contacting the board will be the top one of the plinth, the centres for
the threaded inserts are marked out and the circle in the centre will
have a disc stuck to it, creating a pocket for the spirit bubble to sit
in.
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