LumberJocks

A tri-center mahogany & tilia bowl

  • Advertise with us
Project by Yuval Eitan posted 06-25-2015 12:42 PM 1000 views 6 times favorited 9 comments Add to Favorites Watch

A tri-center mahogany & tilia bowl
This bowl was turned as an experiment in off-center turning, as well as using PU glue (side AND end-grain).
Raw materials are reclaimed wood, as usual: mahogany from a dismantled door lintel, tilia from old floor boards.
The strips were ripped on a table saw and glued using Gorilla PU glue, “as is” (i.e. not planed or sanded).
I chose a contrast composition that I found pleasant. It started as a main thick disk, but a thinner glue up disk was added to the bottom, for depth and interest. I then further added a segmented ring on top, to allow for yet more depth.
A sacrificial block (pine) was glued to a 12mm (~1/2”) birch plywood plate, which served as “face plate” of sorts.
The plated was marked using a compass, and drilled to accept a worm-screw. One axis was central, and three were equidistant from each other, 30mm (~1-1/4”) from center.

The outer shape of the bowl was turned first.
Then, the off-centers were turned. A metal counterweight was screwed to the back-block for balance, on the same radial line of the axis turned at that time.
Last, the central “dimple” was turned.
The bowl was sanded off lathe, so as not to loose the crisp overlap lines (where I did a poor job…), and finished simply with blond shellac, without polishing.
Hope you enjoy!
Cheers,
Yuval

-- Knowlege is just like love - it never dilutes, only grows! Sharing it with others just strengthens it





9 comments so far

View Rockbuster's profile

Rockbuster

499 posts in 2075 days


#1 posted 06-25-2015 02:21 PM

Man, you beat me to it, I have often thought about doing this, but I was going to use 4 equally off centered turnings. This looks good, I like it, looks like maybe I will eventually try it using the 4 method.

-- Rockbuster,Ft. Wayne,In It is far better to remain silent, and appear the fool, than it is to open ones mouth, and remove all doubt.

View PaulDoug's profile

PaulDoug

1096 posts in 1170 days


#2 posted 06-25-2015 02:22 PM

Never seen that tried before. I really like the look. Thanks for the tutorial.

-- “We all die. The goal isn't to live forever; the goal is to create something that will.” - Chuck Palahniuk

View Eli Adamit's profile

Eli Adamit

660 posts in 2756 days


#3 posted 06-26-2015 05:23 AM

Yuval, very nice and unique bowl. I enjoyed to read the process.

-- Eli Adamit, Israel

View sras's profile

sras

4392 posts in 2596 days


#4 posted 06-26-2015 12:27 PM

Nice shape! Great idea.

-- Steve - Impatience is Expensive

View Yuval Eitan's profile

Yuval Eitan

114 posts in 794 days


#5 posted 06-28-2015 06:06 AM

Rockbuster - many have beaten us both to it…. can’t take credit for originality on this one… If mine is a “clover bowl”, I guess a quadra-leaf clover bowl will bring you luck? Concider this: the more centers, the less pronounced the transition between them, unless you drill the holes in the faceplate farther away from the center. And then the “leafs” shal be of smaller diameter. Can be good, can be great, up to you…
After so much text, ironically, I must say I like your signature moto….

PaulDoug, Eli, Steve - thanks!

Cheers,
Yuval

-- Knowlege is just like love - it never dilutes, only grows! Sharing it with others just strengthens it

View Jim Jakosh's profile

Jim Jakosh

17191 posts in 2572 days


#6 posted 10-19-2015 11:46 AM

Very cool Yuval. I have turned multiple centers on the outside but never on the inside. you have given me a new challenge.

Thanks, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View Yuval Eitan's profile

Yuval Eitan

114 posts in 794 days


#7 posted 10-19-2015 02:16 PM

Thank YOU Jim!
It’s a great honour for me to be able to challange somone like you.
Cheers!
Yuval

-- Knowlege is just like love - it never dilutes, only grows! Sharing it with others just strengthens it

View Jim Jakosh's profile

Jim Jakosh

17191 posts in 2572 days


#8 posted 11-28-2015 10:55 AM

Hi Yuval! I could not sleep and was visiting my friends’ projects and came back to this one of yours. It really got me thinking and so I just posted a link to it in my project. You are the one who put me in that direction. I love new designs and this is certainly very unique. Thank you , my friend!!................Jim

ps. I think the 3 centers is the ultimate for this kind of turning. More centers approach a round inside and take away from the crisp division lines . I’ll try another ( 3 centers) some day when the spirit moves me. It was quite a bit of fun seeing it evolve. Can you send me your address in a PM?

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View Yuval Eitan's profile

Yuval Eitan

114 posts in 794 days


#9 posted 11-28-2015 08:54 PM

Hey’ya Jim!!

You have no Idea how honoured and pleased and proud ans happy I am to read these lines of yours…
I’ve always been following other peoples art and craftsmanship, learning, absorbing.
Never have I imagined myself being the source of influence or inspiration to others, let alone overseas, better still someone with such expertise as yourself. SO I feel very privileged.
(ps. a PM, in my line of work {pathology}.... something completely different….)

-- Knowlege is just like love - it never dilutes, only grows! Sharing it with others just strengthens it

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com