Plaster Turning

 

Freshly mixed plaster of Paris hardens within a few minutes and during that time it is possible to model it into regular shapes by pouring and turning. This is useful for producing cylindrical or spherical items without the use of a lathe.

Horizontal method

A horizontal spindle on which has been securely fastened some anchoring material (such as cloth or bandage) is laid in two vee-shaped stocks. A shaped metal profile is then fixed in a suitable position (angled so that wet plaster will run back from its edge) and the plaster is poured onto the spindle while it is slowly rotated. As the wet plaster builds up it is scraped away by the profile, producing a smooth and uniform item. This method is useful for making master items ...

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