Birds-Mouth Bits to make staved cylinders

Here is the corrected link for Amazon.

Amazon

I didn’t know these bits existed so I haven’t ever used them but they are interesting to me.

-- Kyle Shipp, http://battleshipp.blogspot.com

I haven’t used the bits even for narrower cylinders but I’ve heard some folks like them. The last thing I made using the birdsmouth method was a gaff for the sailboat I built a few years ago. It wasmaybe 1 1/2” in diameter finished. I ended up cutting the V-groove with a V-groove router bit in the table. It worked fine but I was only making an 8-stave spar. I suppose you’ll want more than eight staves for your kaleidoscopes?

I made a calculator for determining stave size based on finished diameter and desired wall thickness. It only works for eight staves but if you want it, I think I can dredge it up. It runs in Excel.

Dave

-- Until you spread your wings, you'll have no idea how far you can walk.

Thanks Kyle.

I corrected the link. Looks like Amazon moves stuff around.

Hi Dave,

I appreciate the offer but I don’t have Excel, or any other spreadsheet, on my system.

I was able to find quite a bit of info and an online calculator for masts and spars. The math is interesting. It is located here if you would like to take a look.

I plan to use staved cylinders in combination with segmented sections. They should look good once I get them done. I’ll probably vary the count in each section based more on appearance then function.

Thanks Again,

Bill

Hi Bill,

Yep, as a sometimes boatbuilder, I’m very familiar with Duckworks.

I think you should document the construction of these, here on LJ.

-- Until you spread your wings, you'll have no idea how far you can walk.

Hi Dave,

I could give that a try but I’m not sure if there would be enough interest.

I’ll add to this post as I go along and we’ll see how it goes.

Oh sure. There’d be enough interest. Post it and they will come.

-- Until you spread your wings, you'll have no idea how far you can walk.

I have one of Eagle America’s bird’s mouth bits. Works like a champ.

-- "Bordnerizing" perfectly good lumber for over a decade.

The posting the process would be of interest to me, I’d like to see how these are made….looking forward to the blog!

-- ...it's rennovation time!!!