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plywood ball

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Project by aviad mishaeli posted 10-23-2011 10:50 PM 4932 views 20 times favorited 18 comments Add to Favorites Watch

plywood ball





18 comments so far

View Jim Jakosh's profile

Jim Jakosh

12327 posts in 1850 days


#1 posted 10-23-2011 10:54 PM

Outta sight!!!!!!!!

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

View rtree's profile

rtree

41 posts in 1712 days


#2 posted 10-23-2011 11:04 PM

WOW, that is really neat. How big is it.

-- RT --- The older I get, the smarter my father gets. I should have paid more attention when I was younger.

View live4ever's profile

live4ever

983 posts in 1755 days


#3 posted 10-23-2011 11:15 PM

That is sweet!

-- Optimists are usually disappointed. Pessimists are either right or pleasantly surprised. I tend to be a disappointed pessimist.

View exelectrician's profile

exelectrician

1743 posts in 1172 days


#4 posted 10-24-2011 12:08 AM

To complete the ball the precision is incredible, how on earth did you do that?

-- Love thy neighbour as thyself

View soccer2010's profile

soccer2010

79 posts in 1174 days


#5 posted 10-24-2011 12:26 AM

Very cool !!! I assume each panel has 5 (or 6) separate pieces.

-- John

View Andy123's profile

Andy123

226 posts in 1219 days


#6 posted 10-24-2011 12:31 AM

I would love to see a blog on how to make this!

-- The mistakes I make in woodworking are not mistakes they just give my projects character- Me

View lanwater's profile

lanwater

3098 posts in 1679 days


#7 posted 10-24-2011 07:19 AM

Great work! lot’s of precision.

look for truncated icosahedron.

-- Abbas, Castro Valley, CA

View CarvinTom's profile

CarvinTom

22 posts in 1224 days


#8 posted 10-24-2011 06:45 PM

Wow! I’d love to see how you “jigged” up the individual pieces for assembly.

-- Carvin' Tom, Pittsburgh, PA, www.carvintom.blogspot.com No, I'm *not* retired. I am a "recycled teenager!"

View jerrells's profile

jerrells

866 posts in 1629 days


#9 posted 10-24-2011 11:11 PM

I love what I see but do not know how. Any explainations would be great.

-- Just learning the craft my Lord and Savior Jesus Christ practiced.

View rance's profile

rance

4147 posts in 1905 days


#10 posted 10-25-2011 01:38 AM

I’ve always been fascinated with these. Nice job on the ball. From my calculations:
Hex to Hex joints are cut to 20.9 degrees
Hex to Pentagon are 18.7 degrees
Could anyone confirm?

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View sharad's profile

sharad

1066 posts in 2549 days


#11 posted 10-25-2011 08:36 AM

That’s a great creation!

Sharad

-- “If someone feels that they had never made a mistake in their life, then it means they have never tried a new thing in their life”.-Albert Einstein

View Rockbuster's profile

Rockbuster

339 posts in 1353 days


#12 posted 10-25-2011 05:27 PM

Great work, your angles look flawless, this is something that I have always wanted to do ever since I saw Malcolm Tibbetts Building an Icosahedron in his book “The Art of Segmented Wood Turning” According to Malcolm, to make a Icosahedron, you need to cut 20- 30degree triangles cut with a blade angle of 20.905 degrees, he goes on to say that assembly of 20 triangles with 30 matching sides and 12 perfectly matched intersections of 5 points is well beyond most peoples ability. He’s right, I am going to have to tune my tablesaw up a lot more, just to think about trying this project. Would you mind if I ask what kind of table saw you are uning? Or are you using a table saw, Miter saw combination?

-- 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 soccer2010's profile

soccer2010

79 posts in 1174 days


#13 posted 10-25-2011 06:49 PM

I agree with the 20.905. From memory, I think the pentagon ishould be lower than 18.7, somewhere between 16-17 degress.

I have a german article where the maker quoted 22.5 for the hexagon and 16.0 for the pentagon. Not sure how he got this to work.

-- John

View Joe Lyddon's profile

Joe Lyddon

7928 posts in 2797 days


#14 posted 10-26-2011 05:59 AM

Looks like a nice use for scrap plywood… LOL

-- 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 Sam Shakouri's profile

Sam Shakouri

1001 posts in 1833 days


#15 posted 11-06-2011 11:27 AM

Rance, yes I can confirm your angles, BUT I found petagons always needed adjustment to fit them. no matter how precise you cut them. I think all depends on other factors like the movement of the hexes when you leave them to dry and the change that acured by the thickness of the glue itself. If a tiny mistake here and a tiny mistake there, the result of gluing 32 pieces will be noticeable in the end. It is not easy project.
Sorry Aviad for using your page to communicate with Rance. Thanks.

-- Sam Shakouri / CREATING WONDERS WITH WOOD.....Sydney,Australia....

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