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 Blog entry by stefang posted 02-03-2011 04:35 PM 4571 reads 0 times favorited 9 comments

I don’t know about you, but I hate blogs without pictures, but I have to do this one quickly so others won’t make a similar mistake to myself.

EXPLANATION
My personal goal with this project is to do it as much as possible like the old days. That means not using cooper math to calculate the width of the stave’s. The book I am following just gives a radii for the bucket bottom, and a width to use for the stave’s. It does not explain how that stave width was derived. I somehow got sucked into not using the cooper calculation, but without any other way to determine the width of the stave’s.

I am very unhappy about not maintaining the planned diameter drawn on the bucket bottom. That would ruin the whole project for me and perhaps others. Last night I tried to think of how ancient man would be able to physically calculate the stave width needed. I have come up with a very simple solution that could very well have been used by early bucket makers.

The other unsatisfying aspect has been determining the edge angle for the stave’s. Of course we know that 12 stave’s requires two 15 degree edges on each stave, but early man again could not calculate the required angles. Once again, the explanation in the book is VERY fuzzy. However I also have come up with a plausible solution to how that might have been done.

AM I A GENIUS?
Hardly. Coming up with the solutions required no above average intelligence or creative abilities. It’s just that we don’t need these solutions today, so we never think about them.

OK, SO WHAT ARE THE SOLUTIONS?
I’m not being coy, but I’m going to tell you in this evening’s blog (this evening in Norway). I want to show you with photos how to do it. Meanwhile, if you are tired of beating around the bush, here is the cooper math to calculate the width of your stave’s.

1. Stave width (Outside bucket diameter X pi) divided by the no. of stave’s = Stave width

pi = 3,14159265

2. Edge angle of stave’s ( 360 degrees divided by the no. of stave’s) divided by 2 = edge angle for each side of stave.

I would urge you to use my old method and just use the calculation to check it’ accuracy. My reason is, that with the ‘old method’ you will not be exact enough for you stave’s to all be exactly the same width. That means you will be faced with the ancient problem of the much feared ‘Weeping Stave’ to enrich your journey back in time.

MY PERSONAL PLAN OF ACTION
I went out and bought some new pine today. I am going to do this thing over again the right way. This time I bought 3/8” thick materials which were closest to the 3/4” that I specified to everyone earlier. This thickness should work well and give me more comfort than the 3/8” which I so stupidly resawed to the first time. That said, many of the ancient buckets were made as thin as 1/4” thick. I’m not ready for that challenge yet!

PARTICIPANTS BONUS
Those of you who complete this project will receive a wonderful bonus. It is not cash or material, so don’t go out and buy that new car yet or add a new wing to your house. You will be pleased with it though. I am saving this for a pleasant surprise. It will come in the form of information. We are after all children of the information age, so this seems an appropriate bonus to me.

Thanks for reading this non illustrated version of the bucket blog.

-- Mike, an American living in Norway.