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#11
08-07-2012, 11:36 PM
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Okay, I might be talking out the wrong orifice here but this is more ancient history than modern science.
The key is to use wooden wedges and wait. Why? Wood will expand and contract relentlessly with changes in humidity. The Romans, Greeks, and even us Polacks (I think) used this method to quarry rock. Goggle it if you don't believe me. One thing, a wide metal thingy, like a putty knife blade between the wood and the lower unit case will spread the load and keep the wood from just compressing. Wood, moisture, wet, dry, rinse repeat. 
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