bowl from a board hints/techniques??

[smitty10101]

2 part question:

 

Anyone run across a good source for hints and/or techniques for correcting errors while building a bowl from a board?

 

I tried my hand at one using the bandsaw and wound up with a less than optimal wall thickness and overlap at the joint.

So I was wondering if the solution was to:

A- increase/decrease the angle of the cut. {My tilt on the bandsaw was 45 degrees}.

B- increase the thickness of the rings.

C- somehow increase the # of rings {this option I haven't figured out yet}.

 

I also tried one using Papa1947(?) original angle adjusting jig for cutting one directly on the lathe also using 45 degrees. not the full blown one currently being sold.

 

Looking at the headstock from the tailstock---should the 45 angle be on the right of the parting tool to the turning blank or on the left of the parting tool (if this makes sense). One side of the tool will be 45 degrees and the other will be 55 degrees.

 

When I did the one on the lathe I also wound up with a thin thickness and the rings didn't have an adequate overlap.

 

Any thoughts other than to experiment? 

 

Thanks

 

smitty

 

 

 

Edited May 14, 2024 by smitty10101
wording

[lew]

I will post this in this week's "Wednesdays..." in hopes  of getting you more input. I don't use this method but there are some turners, here, who do.

 

In the meantime, here are some resources that might be helpful-

 

 

 

https://longworthchuck.com/index.php?route=product/category&path=64

 

 

https://www.aawforum.org/community/threads/bowl-from-a-board.21959/

 

 

 

https://www.wood-database.com/wood-articles/how-to-turn-a-bandsaw-bowl-from-a-board/

 

 

[Gerald]

I do ringmaster bowls and we sand a lot because it is very difficult to use turning tools on them. Seems to me one answer is make the rings thicker, Then the problem would be calculating the angle to make the cuts because that changes with thicker rings.

[smitty10101]

1 hour ago, Gerald said:

Then the problem would be calculating the angle to make the cuts because that changes with thicker rings.

Very true.

 

Part of my dilemma. 

[smitty10101]

@Lew

 

I've been thru most of those vids. As usual everyone post "perfect" results with little to no "what if's".

 

Thanks for posting this on Wednesday.

 

smitty

[lew]

Here's a pdf. check page 5 talks about the angles

 

Bowl_from_a_board_revised.pdf

 

 

[HandyDan]

Do a test with a small piece if scrap wood.  Shoot for 40°-45° and see if that leaves enough to get the next ring glued to the first.

[HandyDan]

Found this guy who talks about the angles.  I got a bad link you will have to set it back to the beginning manually.

 

 

[Grandpadave52]

Any advice @Headhunter from your experiences?

[Headhunter]

The only thing I can offer is buy a Ringmaster.

 

I know what needs to be done to make this work but how exactly to go about it is beyond my experience level.