Geometric Shape 'A'

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Project by BritBoxmaker posted 04-29-2012 01:46 PM 2435 views 13 times favorited 42 comments Add to Favorites Watch

The science bit

This box is a square anti-prism with the following properties. It’s top and bottom are 108mm squares, one is rotated 45° to the other, the vertices are joined using eight equilateral triangles. It contains an octagonal liner or tray which can be placed in either half of the box allowing either the dark or light side to be the lid. The lid may also be rotated 45° to give a squarish box with bulging sides and collapsed corners.

The usual suspects


Box – 152mm across corners x 92mm high (wall thickness 6mm)
Liner – 95mm across flats x 80mm high (wall thickness 5mm)

Materials – Solid Rosewood and Bird’s Eye Maple with Steamed Pear Liner and lipping.
Adhesives – PVA

Finish – Spray Satin Acrylic

A drawing to help make the design clearer (for the hard of thinking)

A rendered image of my original TurboCAD model

All faces of the box are flat and the wood grain follows all the way around the sides.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging.

42 comments so far

View MasterSergeant's profile


1324 posts in 1775 days

#1 posted 04-29-2012 02:05 PM

Wow, just plain WOW! You lost me, but I love the finished product ;-P

-- Kelly, woodworker under construction

View jeepturner's profile


936 posts in 1879 days

#2 posted 04-29-2012 02:24 PM

Outstanding concept and design.

I resemble that remark, “A drawing to help make the design clearer (for the hard of thinking)”

I like the box as it sits in the second to the last picture the best.

Thanks for posting it.

-- Mel,

View hairy's profile


2253 posts in 2619 days

#3 posted 04-29-2012 02:31 PM

Keep it coming, Candyman! Super!

-- stay thirsty my friends...

View Yuri's profile


54 posts in 2502 days

#4 posted 04-29-2012 02:42 PM

Intriguing. You are not running out of the ideas with every new box you make. I’m amazed.

-- Live to Learn

View BritBoxmaker's profile


4586 posts in 2123 days

#5 posted 04-29-2012 02:43 PM

I agree, Mel. Pictures re-configured.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging.

View TedM's profile


2002 posts in 2819 days

#6 posted 04-29-2012 02:59 PM

I just know that it looks cool! ;)

-- I'm a wood magician... I can turn fine lumber into firewood before your very eyes! - Please visit and sign up for my project updates!

View shipwright's profile


6267 posts in 1884 days

#7 posted 04-29-2012 03:01 PM

Just a great exploration of geometry and form.
To me the flat sided one is all balance and sophistication while the kink sided one is its somewhat awkward cousin.
In a way a mirror of many of life’s relationships.
The workmanship is of course superb.
You continue to amaze Martyn.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees.

View SPalm's profile


5185 posts in 2968 days

#8 posted 04-29-2012 03:03 PM

That is wild!
It is fun to get my mind wrapped around it. A lot going on there.
Well done, Sir.


-- -- I'm no rocket surgeon

View stefang's profile


14926 posts in 2421 days

#9 posted 04-29-2012 03:06 PM

Fabulous box Martyn and all the more interesting due to it’s geometrical dna.

-- Mike, an American living in Norway.

View choppertoo's profile


298 posts in 2399 days

#10 posted 04-29-2012 03:08 PM

In freakin’ credible.

Your boxes continuously intrigue and boggle my mind. Thank you for sharing.

-- The greatest danger for most of us is not that our aim is too high and we miss it, but that our aim is too low and we reach it.. Michelangelo

View steliart's profile


1817 posts in 1775 days

#11 posted 04-29-2012 03:37 PM

What an amazing design Martyn!!!
I love the way you always think out of the box for the box :)
Your imagination is running wild here… so when I look at the last two photos with the lid rotated I could not stop thinking that the last photo it’s male and the one before it female… so I look at it as duality box.
Thanks for sharing Martyn

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - --

View itsmic's profile


1419 posts in 2205 days

#12 posted 04-29-2012 03:38 PM

Great Box, very interesting idea there, fine craftsmanship as usual, Great job, thanks for sharing

-- It's Mic Keep working and sharing

View majeagle1's profile


1423 posts in 2583 days

#13 posted 04-29-2012 04:11 PM

Fantastic Martyn…... talk about geometrically challenging, this takes the cake!
Great design and beautiful execution !

-- Gene, Majestic Eagle Woodworks,,

View Ken90712's profile


16034 posts in 2275 days

#14 posted 04-29-2012 04:15 PM

Another amazing design from the master. I always look fwd to seeing notification when you post. This is think way outside the box! I think the pun was intended! LOL great work.

-- Ken, "Everyday above ground is a good day!"

View KnotCurser's profile


1944 posts in 2155 days

#15 posted 04-29-2012 05:23 PM


As always, you leave me both impressed and severely confused. ;-)

Great work – this looks amazing – love the contrast!


-- Robert Rhoades WoodWorks / Email: /

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