tall wall nut bowl - Woodworking Talk - Woodworkers Forum
 
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post #1 of 10 Old 11-21-2011, 02:05 PM Thread Starter
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tall wall nut bowl

hey all turned my first bit of wall nut the other day and am experienced quite a few issues with this one. The major one though is that I keep getting tear outs even after I sharpen my tools. The tools are cutting just fine but I continue to get tear outs. The strange thing is they only happen on certain sections on opposite sides of whatever it is Im turning. The lathe is a central machinery 12X36. Im thinking it might be that the head stock is wobbling causing some cuts to be dead on and some to just rip. Anyone ever had this issue before? Had to spend hours sanding this son of a gun and when it was finished realized that the bowl is actually more oval than round.When you look at the piece as it i spinning you can also tell it isnt rotating true. Any thoughts on whats causing and how to fix this?Anyway... with no further blather here some pretty purple
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post #2 of 10 Old 11-21-2011, 02:43 PM
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Every new turner experiences this. It has a lot to do with presentation of the tool and direction of cut. Depth of cut and tool shrpness are also issues. As to the oval shape, was it green wood or dry? Heat from sanding could have caused some of the warpage.

That bowl was perfect right up until that last cut...
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post #3 of 10 Old 11-21-2011, 02:48 PM
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Hey Bond,
That's a VERY common occurance...
It happens on the end grain, where you are pulling the fibers, instead of shearing them...
Do a search on "tear out", there is a pant-load of info on reducing it...
If you can totally eliminate it, please share with the rest of us, 'cause I, for one, would LOVE to never see it again!

Otherwise, great lookin' bowl!

p

...ever notice how "I'm sorry" and "I apologize" mean the same thing, unless you are at a funeral..?
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post #4 of 10 Old 11-21-2011, 03:00 PM
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What they said.

Your lathe might have a wobble, but it doesn't need one in order to get tearout, and some pieces of wood seem to get it much worse than other pieces.

I find that (once the piece is balanced) cranking the speed up can sometimes reduce the amount of tearout.

I really like the shape of your bowl -- I've never tried an "out-flowing" profile, might have to give that a shot.

Please visit my website, Fruit of the Lathe
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post #5 of 10 Old 11-21-2011, 03:03 PM
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same here on the tearout.
i cant turn one that deep without having trouble with by tools wanting to grab on me
Nice bowl
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post #6 of 10 Old 11-21-2011, 05:25 PM
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Nice bowl, sometimes wood not as dry as we think it is. Some forms more prone to oval than ones with wider diameter.
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post #7 of 10 Old 11-21-2011, 06:47 PM Thread Starter
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WOW!!! so went and took a look to see if I couldnt fix something and lo the bolts holding the headstock were waaay off. After a bit of tightening I finally got to experience something closer to what you all must feel while turning. WOOD EVERYWHERE! and it seems to have eliminated the problem. I thought I liked turning before but this was just a blast. Thanks for the help and encouragement all
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post #8 of 10 Old 11-21-2011, 06:55 PM
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Quote:
Originally Posted by bond3737 View Post
WOOD EVERYWHERE!
Now you're talking!

Glad you got that taken care of -- if the bolts had just carried on getting looser there would come a point where things got very dangerous.

Please visit my website, Fruit of the Lathe
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post #9 of 10 Old 11-21-2011, 08:27 PM Thread Starter
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lol I thought the same thing as I was tightening the bolts. Death by walnut is not something I want on my tombstone
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post #10 of 10 Old 11-21-2011, 08:28 PM
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Nice looking piece. Glad you got your lathe figured out.

John
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