Hub marking. Drawing, description

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Hub marking. Tips for a modeller

Modeling

It is known that most propellers of ships and ships are three-bladed, and therefore, when reproducing them on a copy model, it is necessary to accurately mark three holes on the propeller hub, placing their centers strictly in 120 ° increments. Of course, if only one screw is required, it is not too difficult to do this, but there are many ...

In a word, I propose a simple device with which it is easy to mark any hub. It is a steel triangular frame, in the walls of which there are three threaded holes. A hardened steel screw with a sharpened end like a core is wrapped in each. It is enough to insert the shaft or the hub of the screw between them and evenly tighten the screws - and clear depressions will appear on the workpiece. It remains to drill holes on them.

Hub marking

Author: S.Savlyukov

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