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the Technology Interface/Spring 2008 Klein III. MODEL MAKING Once the design for the model had been produced, material was selected and prepared for the lathe turning process. Poplar wood was selected due to its closed grain structure and ease of machining characteristics. [3] Wood was selected that was free of defects such as knots and checks and pieces were cut to be assembled to produce the model. As indicated in Figure 2, paper was glued between the two center boards to create a weak glue joint to enable the model to be split in half after it is produced. [4] The pieces were arranged, glued and clamped for 24 hrs to assure excellent curing of the glue. Wood turning on a lathe can create high forces which can break the laminate apart and possibly cause injury to the lathe operator so it is imperative the the glue joints be properly clamped and have sufficient time to cure. Once the laminate has cured overnight, the clamps were removed and the laminate was roughly cut to size on a band saw as indicated in Figures 3 & 4. The ends were then marked for the centering process to mount the laminate on the lathe between a live center and dead center. The laminate was turned to the desired design using traditional wood turning techniques and was continuously checked to verify the shape conformed to the drawings. (Figures 5 & 6) Page 3PDF Image | 12 mil Reinforced Polyethylene
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