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65lbs.jpgI was able to squeeze the bathroom scales to ~65 lbs.160 viewsI don't think this was anything like an accurate measure of maximum clamping pressure, because the cam will only flex the spring arm to a hair short of 3/8" from rest. That went to the 65 lb. mark, but If I could get another purchase I think it would go more-not that you need much more to hold a tight glue joint until it sets.Tom11
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ClampParts.jpgStock for cam clamp187 viewsAll hard maple, bar is 2 1/4" x 28", uprights are 2" wide by 9 1/4" long. All stock is 13/16" thick, making laminated uprights 1 5/8" across when finished.Tom11
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HalfMortise.jpgCutting mortise in upright161 viewsHalf the mortise is cut in each piece before lamination. Router plane is excellent for making sure mortises are correct and snug. 1 1/4" left below bar on both uprights, help keep assembly level and stable when using the clamp. Tom11
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MortiseCut.jpgMortise in fixed upright160 viewsThe upright pieces are twice as thick as the bar, with half the mortise cut in each side before gluing up. This fixed end is made snug and well glued.Tom11
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CamLeverSlot.jpgLever mortise layout150 viewsShowing where the slot will be cut for the cam lever, with business end 1/2" from inside edge, from which the spring face will be cut, to be pushed by cam lever.Tom11
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ClampDone.jpgCam Clamp finished172 viewsFinish is Minwax "golden oak" followed with a wipe of "English chestnut," giving a color similar to the unfinished maple of my work bench made in 1995. Inside dimensions are 6" reach, by 23 3/4" width of clamping capacity.Tom11
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CamClamping.jpgCam Clamp at work160 viewsThe pivot hole in the lever is ~ 3/16" off center, 9 o'clock when at rest. Raising it gives a max of c. 3/8" clamping action.Tom11
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