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Forming a Mortis/Recess or Tenon/Spigot
There are two main types of technique used to hold a workpiece onto the chuck:
Tenon (Spigot) and Mortis (Recess).
In either case, to form a dovetail in the mortis/recess or on a tenon/spigot, the
workpiece must be securely mounted on the lathe with a woodworm screw (Or
equivalent such as a faceplate or between centres).
Note: There are two main types of technique used to hold a workpiece onto the
chuck: Mortis/Recess and Tenon/Spigot.
In either case the forming of a proper dovetail will ensure that the jaws will perform
to their maximum ability.
Note:
The procedures below show the general formation and uses of both the
mortis/recess and tenon/spigot. However, it is up to the user’s experience to
determine the ideal size of the recess and spigot size based on the jaws they are using.
Safety Concerns when turning
IT IS RECOMMENDED TO USE THE TAILSTOCK FOR ADDITIONAL SUPPORT
WHENEVER POSSIBLE. BY NOT CHUCKING UP YOUR PIECE PROPERLY, YOU RISK
YOUR PIECE DISLODGING FROM THE CHUCK
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