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Codex Atlanticus, folio 984v

Threading and Tapping machine

On folio 984v of the Codex Atlanticus, Leonardo drew a system whereby a screw could be copied semi-automatically from a single model.

The operator had to place a blade alongside the screw being produced while the carriage was rising, imparting the desired rotation and speed of movement.

On the same folio he also draws a machine for threading nuts.

Altre macchine