Screw Thread Tutorial

1 Draw the shape of the thread you need
2 Draw the helix curve and orient shape properly
3 Rail revolve and cap (Cyan)
4 Boolean subtract the railrevolve solid from a cylinder (Blue) (note that the thread diameter is slightly bigger than the cylinder's)
5 Boolean subtract from a bigger cylinder (Magenta) the threaded male rod. - Pascal
Rhino Newsgroup

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