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[quote]QUOTE: <i>Originally posted by ereimer</i> <br /><br /> ...I was thinking of just glueing a 4"x4" piece of 1/4" plywood to the bottom of the foam then screwing a tortoise to that . could probably go with a smaller piece of plywood if space is tight , or a larger piece if 2 tortoises are close to each other . i'd love to hear pro and con arguements about this before i start construction (maybe this summer)[/quote] <br /> <br />Con (well, more con than pro) <br /> For the base for my roundhouse and turntable I used a 4' X 4' X 1/4" outdoor plywood under a 4' X 4' x 2" extruded foam. <br /> As soon as I applied the glue to the plywood, it warped, a lot. I used all the heavy weights I could find, on top of another sheet of plywood, on top of the foam (just to protect the foam from dents). <br /> After the glue set, It came out somewhat flat, but not perfectaly flat as I wanted. The warping did give me a bit of trouble with fitting the rear walls to the base of the roundhouse. But consider that the roundhouse spans across the whole 4 x 4 section and I shoot for perfection (however, I often miss the bulls eye). Maybe a sag or bow of 1/16" - 1/8" won't be a problem for you though. <br /> <br />[img]http://img.villagephotos.com/p/2006-2/1148725/ROUNDHOUSE9r.jpg[/img] <br /> <br /> <br />
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