LumberJocks

Segmented Bowl

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Project by TheDane posted 03-10-2013 04:12 PM 2191 views 6 times favorited 12 comments Add to Favorites Watch

I have been struggling with getting the alignment of rings in segmented bowls. Being a fraction of an inch off on a ring … especially the bottom rings … can ruin a bowl, wasting wood, glue, and a lot of time.

One of the turners in my local club gave me a tip that really paid off.

He suggested super-gluing four little blocks around each ring to aid in alignment.

With the last/top ring flat on the bench, stack the next to the last ring on it, and center with a combination square.

Next, use CA/super glue to glue 4 little scraps of wood (I cut 1/4” plywood into squares) around the ring (being careful not to super glue the rings themselves together). The plywood squares are used to repeat the alignment when the glue goes on.

Place another ring on top of the stack and repeat. When all rings have been prepped, use a Sharpie to put a witness mark on the rings, then unstack and start gluing. I have a simple jig (a piece of plywood with a hole that fits the back of a face plate and 2 clamps) that I use to put clamping pressure on the stack. I let the glued up stack cure overnight.

When you are turning, the plywood squares will come flying off when you hit them with the gouge, but, so what? You have you face mask on (don’t you?)!

This particular bowl has 85 pieces … a solid maple disk in the bottom, and 7 rings (oak and maple) with 12 segments to a ring. It is 9 1/2” in diameter, and 2 1/4” high. The walls are 1/8” thick, so this bowl doesn’t weigh very much. I glued the bottom disk directly to a waste block that is in turn screwed onto a face plate.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"





12 comments so far

View Monte Pittman's profile

Monte Pittman

14119 posts in 989 days


#1 posted 03-10-2013 04:54 PM

Thanks for the pictures. As a non lathe person I always wondered how it was done.

-- Mother Nature created it, I just assemble it.

View branch's profile

branch

905 posts in 1806 days


#2 posted 03-10-2013 06:56 PM

hi very nice bowl like it i use hot glue to hold the wedges in places and the knock of very easily before turning
branch

View Joe Lyddon's profile

Joe Lyddon

7710 posts in 2704 days


#3 posted 03-10-2013 07:40 PM

COOL work, Gerry!

That looks SO intricate… I can see how one could waste a little wood getting things ‘just right’.
Looks like you’ve figured it out!
Good for you!

One slight slip on that lathe & I’ll bet you have Fire Wood too… LOL

Thank you.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View MonteCristo's profile

MonteCristo

2097 posts in 840 days


#4 posted 03-10-2013 08:28 PM

Good tip on how to keep the layers in line ! Thanks !

-- Dwight - "Free legal advice available - contact Dewey, Cheetam & Howe""

View b2rtch's profile

b2rtch

4323 posts in 1700 days


#5 posted 03-11-2013 12:40 AM

This is a very nice bowl Gerry, congratulations.
Thank you for the tips but I do not turn

-- Bert

View CalgaryGeoff's profile

CalgaryGeoff

937 posts in 1133 days


#6 posted 03-11-2013 08:22 AM

I like this piece, fantastic work. Im enjoying your posts.

-- If you believe you can or can not do a thing, you are correct.

View Bluepine38's profile

Bluepine38

2876 posts in 1737 days


#7 posted 03-11-2013 01:51 PM

Very nice looking bowl, I see that you use your tail stock as an extra brace to keep the bowl fastened to
the waste block until you have it rounded off. Took me one ruined bowl to pick up that trick.

-- As ever, Gus-the 75 yr young apprentice carpenter

View helluvawreck's profile

helluvawreck

15772 posts in 1518 days


#8 posted 03-11-2013 01:54 PM

It’s a beautiful bowl, Gerry. Nice work. I’m hoping to be able to do something like that one day.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View TheDane's profile

TheDane

3769 posts in 2314 days


#9 posted 03-11-2013 02:10 PM

Bluepine38—I use the tail stock as often as I can.

I think the fixing metod I use is pretty solid (glue the bottom of the blank directly to a waste block that is screwed to a faceplate), but I like the extra support.

The live center that came with my lathe is somewhere in drawer, having been replaced by one (from Delta) that has replaceable components (standard cup, 60-degree point, and one with a 1” diameter foot on it).

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View JJones98042's profile

JJones98042

225 posts in 904 days


#10 posted 03-11-2013 03:34 PM

Very nice bowl and great tips! Thanks.

-- "Keep thy airspeed up, lest the earth come from below and smite thee." - William Kershner

View Tim Scoville's profile

Tim Scoville

97 posts in 1987 days


#11 posted 03-11-2013 07:19 PM

Very nice job on this one. Nice and thin walls.

-- Tim S, WA

View mafe's profile

mafe

9509 posts in 1741 days


#12 posted 03-11-2013 08:28 PM

You are really getting the hang of that lathe!
Nice bowl.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

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