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An Experiment in Bowl Blank Preparation

Project by mot posted 384 days ago 565 views 0 times favorited 21 comments Add to Favorites
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mot

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An Experiment in Bowl Blank Preparation An Experiment in Bowl Blank Preparation An Experiment in Bowl Blank Preparation Click the pictures to enlarge them

I wanted to try an experiment in the preparation of this blank to turn. I had a small yellowheart and small purpleheart blanks that were about 5” square. I thought the woods might look nice together in contrast, but not having a drum sander, I didn’t want to start resawing these blanks too much and end up with some iffy glue joints. I thought about it one night while laying on the couch and wondered, what if I cored the blank and laminated the layers. But not coring in the curved blade sense, but more removing a a cone from within a circle sort of thing.

To start, I chucked up the yellowheart and trued the face on the lathe, turned a tenon and trued to bottom. I’m going to need it flat. I then took a parting tool, and at about a 50 degree angle, I started into the blank from the tailstock side aiming about 1” from the rim on the headstock side. Turning very slow, and patiently, I separated an outer chamfered ring, from an inner cone.

I then took the purpleheart blank and resawed about a 8 mm thick piece. I glued the purpleheart to the cone, and when the glue was dry, I rechucked the cone and trued the face of the purpleheart. I then glued the chamfered yellowheart ring on top of the purpleheart, and then a thicker purpleheart piece on top of that. Clamped and glued, I waited until last night.

I chucked the entire piece and turned a profile on the outside, and hollowed the bowl. What you see is the finished project. This is an experiment. In my opinion, the rim is way too much purpleheart. I could have turned it down a little more, but turning dry purpleheart was straining my tenon and I lost this bowl from the chuck twice in the process. As it is an experiment in process, I am, again, unhappy with the form. However, it’s a pretty cool looking little bowl.

In keeping with my wife’s appreciation of my artistic ability, she stated, “Neat. You can plant a little flower in it,” and walked off.

This is, thus, my layered, reverse cored “pot.”

Thanks for looking and please feel free to be critical.

Tom

-- You can discover more about a person in an hour of play than in a year of conversation. (Plato)


21 comments so far

View David's profile

David

1802 posts in 544 days


posted 384 days ago

Tom -

Great project! I love the story – made me smile. I like the bowl. I am not a turner (yet) so I have no experience to guide or judge. I agree with your comment about the purpleheart top rim. A thin delicate rime of PH would look wonderful and would be a great accent for the YH. I stiil think it looks great!

-- http://foldingrule.blogspot.com

View Douglas Bordner's profile (online now)

Douglas Bordner

2302 posts in 469 days


posted 384 days ago

Beautiful, Tom. Really nice contrast to the woods. Like most geniuses, under-appreciated in their own land. I’m sure my wife feels the same way about the Shop Tour fun. The look I got when she woke up this morning and I was still working on it – was less than enthusiastic. Even though I was just finishing up an attribution to her (and Deb’s daughter for photo work). You got credited, ur ah, Spid-tato man got credited for his cameo appearances.

-- "Bordnerizing" perfectly good lumber for over a decade.

View DAN's profile

DAN

2644 posts in 389 days


posted 384 days ago

Hello Tom,
Great bowl ! Nice shape. Love the yellowheart too. Looksgreat next to the purple heart.
Taking the photo with fruit made it even better !
Regards
DAN

-- ..... smalll army of cast iron wingnuts !! cool photo in FORUM

View WayneC's profile

WayneC

5690 posts in 503 days


posted 384 days ago

Well done. If I knew your wife better I could suggest a retort…

-- We must guard our enthusiasm as we would our life - James Krenov

View MsDebbieP's profile

MsDebbieP

11040 posts in 566 days


posted 384 days ago

love the bowl… AND the artistic top ring…. it kinda adds weight to keep the bowl “planted” firmly on the table, balancing on the smaller ring at the bottom.. if that makes sense. It does to me, the viewer, and so that’s all that counts, to me, the viewer!! :)

great photograph – nice setting.

family appreciation, well, what can one say… when it comes right down to it an artist’s work only matters to him/herself. If he/she is pleased, then it is good.

-- "Functional WoodArt" by Debbie, Canada (http://www.execulink.com/~yohan)

View mot's profile

mot

4830 posts in 442 days


posted 384 days ago

Well, thanks for the comments. I was jittering with anticipation each time I got a minute to get down to the shop to work on this. The foot was turned off it about 3am this morning. After losing the bowl from the tenon that was chucked twice, I mounted it in cole jaws to turn the foot and lost it again. I’m pleased at the glue joints because it hit the concrete floor both times…and the lathe bed…and tool rest, and my workbench leg…possibly the bandsaw as well.

Turning purpleheart: Yech…hard as a rock. I had to sharpen my gouges several times.
Turning yellowheart: Suprisingly oily and really nice to turn. Tears out a bit, but that can be controlled with a sharp gouge and paying attention to grain and bevel support.

Will I do another layered bowl? Baby yeah! And quite possibly start on one tonight!

Thanks for looking! And yes I know…I have to get cracking on the summer challenges…LOL

-- You can discover more about a person in an hour of play than in a year of conversation. (Plato)

View Karson's profile

Karson

12002 posts in 806 days


posted 384 days ago

Tom:

It’s a great looking bowl. But I do think that the large purple heart layer causes the eyes to stay too long in that spot. Maybe twice as big as the bottom PH layer.

The yellowheart does not seem to be a 1X and a 2X maybe more a 1X and a 2.5X layer, you could try the purpleheart in the same combination.

-- Karson Southern Delaware karson_morrison@bigfoot.com

View TheGravedigger's profile

TheGravedigger

185 posts in 430 days


posted 384 days ago

I can relate to your situation. If there was such a thing as a wood that was naturally demon-possessed, it would be purpleheart!

Of course, if you want a REALLY hard wood, try black locust.

-- Robert from Raymond, MS. "We are what we repeatedly do. Excellence is therefore not a practice, but a habit." - Aristotle

View Bob Babcock's profile

Bob Babcock

1809 posts in 492 days


posted 384 days ago

Nice Tom, I know almost nothing of turning (one of these days I’ll actually spend the time to get the lathe fixed) but I like the bowl.

-- Bob, Carver Massachusetts, Sawdust Maker http://www.capecodbaychallenge.org

View Bob #2's profile

Bob #2

1683 posts in 427 days


posted 384 days ago

Good job Tom and nice to see you experiment with different woods and styles.
Turning is always a learning thing.

Bob

-- A mind, like a home, is furnished by its owner

View Don's profile

Don

2586 posts in 583 days


posted 384 days ago

Interesting experiment, Tom. Nice combination of woods and color.

If you want to try really hard wood – try any variety of Aussie Eucalyptus.

-- CanuckDon "I just love small wooden boxes!" http://www.canterburybaptist.org/

View jockmike2's profile

jockmike2

3890 posts in 652 days


posted 383 days ago

Nice looking bowlll spiddy. N ice presentation picture takindg. jockmike

-- Mike. Profisher50@yahoo.com

View oscorner's profile

oscorner

4576 posts in 717 days


posted 383 days ago

Neat looking bowl, Tom. I like the design.

-- Jesus is Lord!

View scottb's profile

scottb

2782 posts in 733 days


posted 383 days ago

good idea for preserving the inside of (and otherwise lost to dust portion of) the bowl. I agree with your design critique, but the experiment is a success!

-- The opposite of war isn't peace. It's creation. -- Wood T's: http://www.printfection.com/snbcreative

View BillinDetroit's profile

BillinDetroit

26 posts in 383 days


posted 380 days ago

I turn. And I like the bowl. So there! <grin>

Nice lines on the profile … it actually looks like you have giant fruit next to it … try this again with larger stock and maybe hold closer to the Golden Ratio for the layer thicknesses … but letting them get bigger towards the top.

Seriously, the bowl DOES look top heavy … but that gives it a sort of ‘anticipation of motion’ and could easily have been claimed as a design intention.

If you don’t want it, I’ll send you my address so you can dispose of it properly. 8-)

-- http://nmwoodworks.com (pens & bowls, mostly)

View dbriski's profile

dbriski

22 posts in 462 days


posted 379 days ago

Cool Idea, I had thought of something similar to this idea but never put it to wood. Do think it would be possible with 3/4” stock? I guess you would just have to get the right angle.

-- David, www.briskibusiness.com

View MsDebbieP's profile

MsDebbieP

11040 posts in 566 days


posted 378 days ago

ditto on the “design intention”

that’s what makes art – art!

-- "Functional WoodArt" by Debbie, Canada (http://www.execulink.com/~yohan)

View mot's profile

mot

4830 posts in 442 days


posted 378 days ago

dbriski, 3/4” stock would be fine. I think I would do it with a scrollsaw first though, or use a very narrow parting tool to preserve the stock. There was mention of a tool called a “Ringmaster” that apparently makes bowls from boards. The same sort of concept I guess.

Debbie, art is in the eye of the beholder, I guess. I had an interesting comment on another forum, from an artistic turner that makes a living at this sort of thing. She stated that there is a balance with the yellowheart on the bottom and the purpleheart on the top. So, where I was failing to see it, balance existed.

I showed it to a friend and he said, “How did you get those paint lines so crisp?” I just took it from him and stomped away.

-- You can discover more about a person in an hour of play than in a year of conversation. (Plato)

View MsDebbieP's profile

MsDebbieP

11040 posts in 566 days


posted 378 days ago

lol you didn’t go throw a plant in it, did you??
:)

hmph. critics!

-- "Functional WoodArt" by Debbie, Canada (http://www.execulink.com/~yohan)

View Joel Tille's profile

Joel Tille

200 posts in 650 days


posted 358 days ago

Tom nice bowl

I had a good laugh, paint ... some people don’t get it, wood is beautiful by itself.

-- Joel Tille

View Steffen's profile

Steffen

229 posts in 441 days


posted 353 days ago

Tom,

I don’t think it’s too much purple heart as much as it is the shape of the top to the base. You could easily balance it out by turning a base which is larger in diameter (out of purple heart) and attaching it. I don’t know, after I said that I looked at it again and I don’t really know…I have to hold things before I make these kind of decisions. It’s very nice and I’m jealous of your lathe.

It’s a very beautiful piece.

-- Steffen

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