Not a box Oak icosahedron

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Project by jonsajerk posted 630 days ago 1700 views 5 times favorited 8 comments Add to Favorites Watch

So I have been really wanting to build some geodetic domes to make light pendents and mostly for the heck of it. Now i got a few and cant bring my self to drill them for lights. Pretty easy build 15 equilateral triangles cut on the chop saw. Then I put a 20 degree bevel on the bench sander. It technically should be 18 degree bevel, but I found that the 20 made it nice and tight on the outside of the joints. Inside had a little gappage just filled it with glue. Assembled with glue, tape and some time.

8 comments so far

View Wdwerker's profile


331 posts in 836 days

#1 posted 630 days ago

Looks great! I have messed with geodesic domes since the mid 1970’s . Getting the joints to fit accurately is not easy. Congratulations!

-- Fine Custom Woodwork since 1978

View jap's profile (online now)


1224 posts in 656 days

#2 posted 630 days ago


-- Joel

View Jim Jakosh's profile

Jim Jakosh

11087 posts in 1708 days

#3 posted 630 days ago

Those are really neat!! I can see why you don’t want to drill holes in them. Nice project!....Jim

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

View lanwater's profile


3075 posts in 1536 days

#4 posted 630 days ago


Very well done.

-- Abbas, Castro Valley, CA

View rdwile's profile


137 posts in 714 days

#5 posted 630 days ago

Not sure you noticed, but your photo assistant photo-bombed your shot… :-)

-- Richard D. Wile,

View MarkTheFiddler's profile


1731 posts in 791 days

#6 posted 629 days ago

Those are really cool – thanks for the angles!

-- Thanks for all the lessons!

View DaveFFMedic's profile


67 posts in 769 days

#7 posted 629 days ago

I love these shapes. There’s something about them that intrigues me. Maybe its the conglomeration of simple shapes (triangle) that create a complex shape (icosahedron) that approximates a simple shape (sphere). So cool! The closest I’ve ever come to creating one of these is sticking a bunch of toothpicks into a bunch of globs of hot glue.

View rance's profile


4125 posts in 1763 days

#8 posted 625 days ago

These are cool.

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

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