Post by 1dave on Jul 22, 2015 15:33:32 GMT -5
Basically 3 points of contact, the base wood and the two vertical walls ?
Do you set the rock in with a flat spot facing down ?
And the down force of the blade plants the rock on the wood base ?
I suppose you have to stop the blade after the rock is cut to avoid blade hitting the wood...
I suppose you could make a horseshoe bracket behind the jig to allow the blade to proceed deeper past the rock and depend on the auto-cutoff. or do you just
set the auto-cut off when the bade is close to the wood back wall ?
Too many questions. You have a tub full of proof that it works.
ah, you just posted the sphere in the saddle. So friction of saddle is greater than down force of blade even for a smooth sphere, hmmm.
tub full of proof:
P.S. Not arguing, just asking questions Dave.
LOL! If it didn't work my normal placid demeanor would have destroyed it.
Yep, If it worked for the Kid, I thought it would work for me. Cutting, polishing, and selling eggs was his livelihood. He didn't have time for messing around adjusting clamps.
Three points of contact + the down force of the blade acts as a locking continually tightening point. I even cut one only 1/2" in diameter! Three points held it! Rattle each egg a tad to make sure it is setting secure and you are good to go.
On the trim saw the jig is back-stopped by the end of the table. On the slab saw the auto-cutoff has to be set to stop at the end of the cut in the jig or you will have to build a new jig for each cut. Once set, just toss in egg after egg.
It gives amazing control. I can rotate most eggs any way I want and turn on the saw.
Even odd shapes can be turned to a position where they set secure, but perhaps not to the cut you desire.
I hope you make one and give it a bit of a go.