Activity 9 – 24351 (v2) Demonstrate knowledge of and use specified fixed machinery in the construction of BCATS projects

Student name:

Preparing stock for between centre turning

Find centres by marking diagonals at both ends.

Cut down diagonal lines to a depth of approximately 3mm to support the spurs of the spur centre.

Remove corners by planing where possible.

What advantage is gained by removing the corners?

Preparing lathe for turning

Remove the spur centre from lathe and tap into the end of the timber using a mallet.

Why should the centre be removed from the lathe before fitting it to the stock?

What could happen if the centre was driven into the stock while it is still mounted on the lathe?

Why should a steel hammer never be used to drive the centre in?

Position work on lathe and adjust tailstock to fit

What does a high-pitched squealing noise coming from the tailstock indicate and how can it be stopped?

Check operating speeds are correctly set for the size of stock

Set tool-rest in position approximately 5mm away from work and lock in place

What will tend to happen if it is set with a large gap between the tool rest and the work?

Rotate work by hand to ensure that it clears the tool rest

What can happen if the tool rest is not properly locked in place?