plain turning การใช้

Competitions are held annually for ornamental turning, plain turning, making equipment, displays at meetings, contributions to the bulletin and for advancing the knowledge of the art.
Plain turning is work executed on a lathe where a transverse section through any part of the work comprises a plain circle . "'Ornamental turning "', also called Complex turning, is executed on a lathe with attachments which convert that plain circular section to variants of outline; these range from a simple series of cuts taken at intervals around the work ( so producing grooves or bumps on the surface ) to non-circular movements whereby the whole of the circular shape is removed to give a completely different form.