Have a yellow pine 1x12 with a bit of a cup that I want to shoot the end of. What are the tips or tricks to help me accomplish this task?
here’s the board…
DAC11A35-952A-4793-9C40-4624617F58DC.jpg
Have a yellow pine 1x12 with a bit of a cup that I want to shoot the end of. What are the tips or tricks to help me accomplish this task?
here’s the board…
DAC11A35-952A-4793-9C40-4624617F58DC.jpg
Why do you want to shoot the end of a cupped board? Seems like a waste of effort.
Rip the board down the centre, flatten each half, joint and glue together. Then shoot the end.
Regards from Perth
Derek
It’s thin and flexible enough as is that I don’t think that’s necessary. The joinery should keep the cup at bay and I don’t want it to get too thin. Ripping and rejoining seems a lot more work than finding a way to hold it straight while I square the end but maybe I’m thinking wrong.
I don't see a problem. Put it on the shooting board with the cup facing down and have at it, as normal.
John
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)
The way the grain arc's over in that board, it's going to be arguing with something at every atmospheric change. At some point, it will probably crack if it can't otherwise move. I try not to get in arguments with boards. There are reasons it's called Woodworking, and not just building stuff.
Tony, dovetailing may hold the ends flat, but the cup will add extra tension to the joinery. Further, it will remain cupped away from the case sides. I would rip, flatten and rejoin so that the board is as flat as can be.
Regards from Perth
Derek
Nothing teaches so well as going ahead with your plans and seeing how the wood laughs at you over the years.
A board like this will have its way with any joinery you choose.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)
This may be a case of perfect being the enemy of good. If the end result is not going to be a problem you could just clamp it to the shooting board and move on.
Another thing to consider is if it might flatten itself a little with more acclimatization. It may have been left with uneven exposure, laid flat on the floor or bench or another board. A day's sunshine on the convex side might do the trick.
Cup ended up not being a problem. The huge tear out and loose knot in the middle ended up being why I didn’t use it.