12-Sided Bucket

Does this qualify as cooperage?  I don't know, maybe.

Our neighborhood recently began collecting compostable waste (finally!), so we need a small bucket to collect waste food scraps and other compostable items.  The compostable bags that are sold for this will limit the height and diameter of the bucket.

This started by considering 8-sided vs. 12-sided containers, eventually deciding on 12 because it would seem less angular.  The bucket was to have an inner diameter about 6" at the bottom, 8" at the top, and be about 8" tall.

A few notes and calculations

Being a prototype, this will be made of pine that used to be a table top.  If it comes out OK, It'll be the final bucket.  To keep the bucket light, the pieces will have 3/8" thickness.  Sketchup was used to get approximate dimensions of the 12 pieces.  Here's the build in pics.

Four of the twelve pieces - about 2 1/4" wide at top end, 1 3/4" at bottom 

Each piece gets a 15° angle on both long edges

So they look like this ...

... and when mated together will create a roundish bucket

The 15° angles were made using little 15° ramps on my shooting board

Here's one piece getting the angle

The ramps are reversible so I can plane the other edge without grain direction issues

Twelve pieces with outside faces up.
Then tape was added, the whole thing turned over, and it was rolled up.

Shocked that it all came together pretty well

Then a dado was laid out to hold the 1/8" plywood bottom
(referenced the gauge off the bottom end)

Sawed close to the lines and removed waste with a 1/8" chisel

Then put that same chisel in my impromptu mini router plane to level the dado bottoms

The twelve pieces with dadoes

After taping it together and assembling, got the measurement for the bottom

Laid out the plywood bottom and cut to the lines

After adjusting/fitting the bottom a couple times, glued up the bucket

When dry, leveled both top and bottom edges with a small plane

Another post will cover the lid and finishing.  Catch you then.