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Thread: Sliding dovetail in slab table
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18th October 2004, 01:16 PM #1Senior Member
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Sliding dovetail in slab table
I have been having real problems with a large Redgum slab table top that was very unstable. It had kept moving and cupping even in a fairly stable environment in my workshop.
In despair I was going to cut it up and give up on this project. I was very lucky and dropped by Woodborers workshop to learn more about sharpening pane blades and mentioned my problem with the slab.
He is a mine of information, he suggested a sliding dovetail, yippee.
Cut the slot on the underside of the slab with a router, cored out the slot with a spiral bit and cut the sides with an 8 degree dovetail bit.
Cut the ironbark dovetail with the table saw set to the same angle. The sliding dovetail fits snuggly into the slot, waxed to prevent binding.
I can't see how the slab can move again. It can still expand and contract with humidity changes but is prevented from cupping be the sliding dovetail.
Thanks again Woodborer.
Suresh
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18th October 2004 01:16 PM # ADSGoogle Adsense Advertisement
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21st October 2004, 11:37 AM #2Senior Member
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- Apr 2004
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- United States
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Good idea, I'm going to have to remember that for the next time something like that comes up. Thanks for the tip.
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21st October 2004, 11:58 AM #3
Suresh,
thanks for your kind comments but I didn't invent them but merely introduced you to them. I am glad it worked it OK for you - glad to be of assistance.
hcbph, you can drop in any day too - you would be most welcome. Sliding dovetails do work a treat and they are not all that difficult to make.- Wood Borer