To make a cross half lap joint
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The document summarizes an experiment to make a cross half lap joint using teak wood. It lists the materials, tools, steps of the procedure which include planning, marking, sawing, chiseling and finishing. Precautions are mentioned such as keeping the wood free of moisture and carefully chiseling. The result is that the cross half lap joint was made successfully.
To make a cross half lap joint
- 1. Experiment No# 05 Objective: To make a cross half lap joint. MATERIALS REQUIRED: Teak wood (30mm*150mm*50mm) TOOLS AND EQUIPMENT USED: 1. Steel rule 2. Try square 3. Marking Gauge 4. Rip saw 5. Tenon saw 6. Mortise chisel 7. Mallet 8. Jack plane 9. Wood rasp file OPERATIONSTO BE CARRIED OUT: 1. Planning 2. Marking 3. Sawing 4. Chiseling 5. Finishing
- 2. PROCEDURE: 1. The wooden pieces are made into two halves and are checked for dimensions. 2. One side of pieces is planned with jack planeand for strraightness. 3. An adajacent side is planned and checked for squareness with a try square. 4. Marking guage is set and lines are marked at 40-50 mm to make the thickness and width according to given figure. 5. The excess material is planned to correct size. 6. Using tenon saw, the portions to be removed are cut in both the pieces 7. The excess material in X is chiseled with mortise chisel. 8. The excess material in Y in chiseled to suit X 9. The end of both the pieces is chiseled to exact lengths. PRECAUTIONS: 1. Reaper should be free from moisture 2. Marking is done with out parallax error 3. Care should be taken while chiseling 4. Matching of x and y pieces should be tight. RESULT: The cross half lap joint is made success fully.