To Design and Manufacture a Wooden Pattern for a given Casting

Learning Objectives:

LO1- To understand the purpose and function of patterns in casting - role of patterns in creating mould cavities and their impact on the final casting process.

LO2- To identify and use the appropriate tools for pattern making - Recognize various measuring, cutting, and clamping tools and demonstrate their correct usage in pattern making.

LO3- To understand pattern allowances to ensure accurate casting – Calculating and incorporate different allowances (shrinkage, machining, draft, etc.) to compensate for dimensional changes in the final cast.

Material Required:

Teak wood of 70 x 70 x 70 mm³

Equipment and tools required:

1. Hack Saw
   
2. Jack Plane
   
3. Steel Rule
   
4. Wood Working Lathe
   
5. Drill bit
   
6. Boring Tool
   
7. Vernier Callipers
   
8. Emery Paper