The document provides instructions for a lesson on using a metal lathe. It outlines the learning aims of drilling a hole, filing work, and turning down material on the lathe using measurement scales. It lists health and safety rules that must be followed when using the lathe, such as wearing goggles and ensuring only one person uses the machine at a time. It describes the process of facing off material by moving the tool directly along the face at an angle and keeping the speed fairly fast. It explains that turning down involves using a wedge-shaped tool to remove material by moving the tool along the work sideways using the carriage slide.

1. Spinner Project – Lesson 9 R.Winter 2009

2. Learning Aims: To have drilled your 5mm hole in the hexagon To have finished filing your work and stamping the numbers To know how to ‘turn down’ a piece of material on the metal lathe and how to use the measurement scales to do this accurately.

3. Health and Safety rules Goggles MUST be worn at all time Safety guard down before cutting Long hair tied back Jewellery, watches, loose clothing removed NEVER leave the chuck key in the machine Always ensure the work is clamped properly and the tool is clamped and centralised on the work Only take SMALL cuts at a time (les than 1mm) STRICTLY 1 person at a time to use the machine

4. Facing Off The tool is moved directly along the face of the material at a slight angle (different angle to turning The Tool must be centered first of all The speed should be kept fairly fast, but suitable for the material – about 1800rpm for steel

5. Turning Down The tool is profiled to look like a wedge shape with the cutting point being located as shown on the picture. The tool is moved along the using the carriage slide and travels sideways along the work removing material The tools can have either a radiu end, or a pointed cutting end. The tool is the same as used for facing off, but the angle is different. Direction of travel of tool Material being turned