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20th June 2015, 03:49 PM #1SENIOR MEMBER
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Bowl jaw alternatives for finishing bottoms
Hi folks,
Just turned and finished the top half of a bowl, and went to reverse it onto my bowl jaws only to discover while the bowl has respectable clearance over the bed of the lathe, the jaws project far enough past the bowl that it can't turn.
Are there good alternative techniques for cleaning up the bottom of a bowl? The finish on the top half came up pretty nicely, so I am not really keen to try gluing it up if I can avoid it.
I pretty much just need to get rid of a waste block glued to the bottom, finalise the shape, and then sand and finish.
Cheers,
Danny
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20th June 2015 03:49 PM # ADSGoogle Adsense Advertisement
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20th June 2015, 04:07 PM #2SENIOR MEMBER
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- Brisbane, Qld
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Leading contender from research so far is to make a donut chuck!
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20th June 2015, 04:53 PM #3GOLD MEMBER
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Use a jamb chuck
Mount a disc a bit bigger than your bowl on your chuck , true it up if necessary . Mount your bowl on this with the tailstock in the centre of the tennon and turn away as much of the tennon as you can, then saw off the nub .Mount a Jacobs chuck on the headstock with a sanding cone and sand through the grits while just holding the bowl in your hands
Ted
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20th June 2015, 05:33 PM #4
See message #8 here: https://www.woodworkforums.com/f8/reverse-mounting-bowls-161476
Cheers,
JoeOf course truth is stranger than fiction.
Fiction has to make sense. - Mark Twain
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20th June 2015, 06:39 PM #5SENIOR MEMBER
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- Dec 2011
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- Buderim qld
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Making a donut chuck
http://youtu.be/t-10dXclT_4
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20th June 2015, 08:01 PM #6SENIOR MEMBER
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A jamb chuck seems to have done the trick without taking much time. Now just need to sort out the nub from the tailstock.
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21st June 2015, 01:16 AM #7GOLD MEMBER
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- Sep 2008
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- North Carolina, USA
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- 2,327
I use a face plate jam chuck with tail center to keep the bowl in place, turn off the bottom, sand, take faceplate and bowl off lathe and pare off the nub with a bench chisel, carefully hand sand or use a small drill mounted disk, finish sand and finish.
So much timber, so little time.
Paul
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21st June 2015, 09:42 AM #8SENIOR MEMBER
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- Jun 2003
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- Brisbane, Qld
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So the finish on the very bottom isn't as nice as the bits finished on the lathe, but I'm still happy with how it came out - thanks for the pointers everyone!
I think I'm going to call it a transatlantic bowl - american cherry and english sycamore.
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21st June 2015, 11:33 AM #9
Looks good...
JimSometimes in the daily challenges that life gives us, we miss what is really important...
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22nd June 2015, 09:33 PM #10
Next time finish the foot when you turn it the first time.
Will require a range of jaws.Stay sharp and stay safe!
Neil
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