Open-Segment Bowl - Petal

[Bob Beaupre]

Open-Segment Bowl - Petal
The top three rings are 48 segment closed rings made of Black Walnut with a thin highlight ring of Maple.
The bottom base ring is a solid Black Walnut ring
The body background is Maple.
The floral design is made up of Black Walnut, Maple, Cherry, Yellowheart, Padauk and Wenge.

This piece consists 3 rows of 48 closed segment, 19 rows of 48 open segments per row and a one piece solid base with a total of 1,057 separate pieces of wood.
Finished size is approximately 9 5/8" inch diameter by 5 5/8 inches deep.

With support files



Of interest here is the same design I built recently, except I changed the top and bottom to Wenge

 

[mfisher]

Nice bowl. Someday I may tackle such a project.

 

[jwmadzelan]

I saved your plan and renamed it "hope to be able to do someday". Thanks

 

[Bob Beaupre]

Good, let us see it when you make it. And remember to ask questions

 

[Turn^3]

Open-Segment Bowl - Petal
The top three rings are 48 segment closed rings made of Black Walnut with a thin highlight ring of Maple.
The bottom base ring is a solid Black Walnut ring
The body background is Maple.
The floral design is made up of Black Walnut, Maple, Cherry, Yellowheart, Padauk and Wenge.

This piece consists 3 rows of 48 closed segment, 19 rows of 48 open segments per row and a one piece solid base with a total of 1,057 separate pieces of wood.
Finished size is approximately 9 5/8" inch diameter by 5 5/8 inches deep.

With support files

View attachment 1898 View attachment 1899 View attachment 1900

Of interest here is the same design I built recently, except I changed the top and bottom to Wenge
View attachment 3672 View attachment 3673

Bob,
This is amazing work! Although I may be over ambitious, I am considering giving this a try after having made several MUCH simpler bowls.
(It appears that this thread has been dormant for approximately 8 years, so I may be shouting into an empty cave with regard to these inquiries/observations, but here goes...)
After reviewing the Cutting Summary, I am unable to find any pieces of cherry on the species list, although I believe I see cherry in the petals from the provided pictures (e.g., the upper three petal edges are believed to be composed of walnut (upper/outer petal edges) followed by an adjacent petal edge of padouk, and then followed by a further adjacent petal edge of cherry). If I am correct, the cherry pieces should be added to the Cutting Summary list, such as species 7 ("S7") to each of the rows currently adding up to less than 48 pieces (e.g., rows 2-7 each appear to be "short" by 8, rows 8-9 each appear to be "short" by 16, row 10 appears to be "short" by 12, row 11 appears to be "short" by 8, and row 12 appears to be "short" by 4.
If you would be so kind as to review and confirm (or clarify if I am mistaken) my observations I would be most grateful prior to tackling this project.
Kind regards,
Scott

 

[mfisher]

Hi Scott:
Bob has not been that active on this site lately. I downloaded the two files.

- WTP summary page has a limit of 5 species, even though you can paint more than 5 species in a ring.

- While the json file imported into SP fine. The summary sheet is not correct in showing the species in mine.

 

[Turn^3]

Hi Scott:
Bob has not been that active on this site lately. I downloaded the two files.

- WTP summary page has a limit of 5 species, even though you can paint more than 5 species in a ring.

- While the json file imported into SP fine. The summary sheet is not correct in showing the species in mine.

Thank you for your extremely prompt response and insight!
Since Bob had obviously successfully created two projects from his files, it would appear that the summary page information is correct, and that the 5 specie limitation of the software was the cause for the omission of cherry, since the ring views that appear to show cherry (based on color coding) correctly sum to 48 pieces/row.
I purchased WTP earlier this year (or late last year?), intending to more fully understand its workings, but unfortunately was distracted by difficulties creating an indexing/gluing jig for open segmented projects, woodworking equipment issues, and then later by warm weather activities, and will now need to go back and essentially relearn everything. If I get "stuck", I may be posting additional questions.
Thanks again!
Scott

 

[mfisher]

Thank you for your extremely prompt response and insight!
Since Bob had obviously successfully created two projects from his files, it would appear that the summary page information is correct,

they are correct for the information you need to make the bowl. The only thing I saw in the summary table was the segment count in WTP due to the species limitation.

What was strange is the SP json file loaded fine, I looked at the SP summary table and it did not list any of the species beyond the default Maple.
Not sure what happened in SP. The bowl view and paint view are just fine.

and that the 5 specie limitation of the software was the cause for the omission of cherry, since the ring views that appear to show cherry (based on color coding) correctly sum to 48 pieces/row.

WTP was written over 16 years ago. Still a very good piece of software. Back then doing a vessel with 5 different woods seemed enough
SP has a limit of 10. Lloyd has said he had to pick a number and 10 seemed to be more than enough.

I purchased WTP earlier this year (or late last year?), intending to more fully understand its workings, but unfortunately was distracted by difficulties creating an indexing/gluing jig for open segmented projects, woodworking equipment issues, and then later by warm weather activities, and will now need to go back and essentially relearn everything. If I get "stuck", I may be posting additional questions.

That is what the forum is for. Asking question and sharing information.

Thanks again!
Scott

Happy turning.

 

[Turn^3]

I have cut and glued up 4 rows for each of two duplicate bowls. While turning down the inside of the lowest three rows, and trying to go extremely slowly, I have been encountering breakage of the pieces (left hand bowl pic), threatening to ruin the project. Does anyone have recommendations for speed and type of lathe tool to best proceed to minimize breakage? Thank you for your assistance.

 

[mfisher]

Members in my woodclub have a consensus of:
- For lathe speed, the faster the better as long as it is well balanced.
- I have found the carbide tools like the Eliminator (round disk) does a good job on the inside.

 

[Turn^3]

I believe that I had been turning at about 1,000 rpm, using a round disk. I may try to go a little faster.
I had attempted to hone the disk on an extra fine diamond file out of concern the disk was dulling...
Thank you!

 

[Turn^3]

I had mixed results. As to the one on the right, I'm not sure what can be done (dremel?). I had attempted to start along the outer radius of the inner surface of the fourth row (counting the base as the first row) after turning the inner radius had resulted in breakage. Unfortunately, the breakage only continued. I had better luck with the outer surface (second pic).
Any recommendations for videos turning the inner surface of open segmented bowls having high numbers of pieces/row?

 

[Turn^3]

Here are the completed bowls! I am so relieved! This was an exercise in patience and persistence. I probably have 200 hours in this project. One bowl is being donated to charity (The Ned Smith Center for Nature and the Arts). I was able to clean up the previous breakage issues identified in this thread primarily using a round carbide disk, as well as a negative rake scraper (maintaining sharp tools!), turning speed approximately 800 rpm. I would highly recommend using a steady rest (open frame with three skateboard wheels) to secure the rim of the bowl during turning.

(I still need to figure out how to save Bob's files...)

Thank you SO much for your assistance!

 

[mfisher]

Here are the completed bowls! I am so relieved! This was an exercise in patience and persistence. I probably have 200 hours in this project. One bowl is being donated to charity (The Ned Smith Center for Nature and the Arts). I was able to clean up the previous breakage issues identified in this thread primarily using a round carbide disk, as well as a negative rake scraper (maintaining sharp tools!), turning speed approximately 800 rpm. I would highly recommend using a steady rest (open frame with three skateboard wheels) to secure the rim of the bowl during turning.

(I still need to figure out how to save Bob's files...)

Thank you SO much for your assistance!

Glad it worked out for your. Nice work.

as far as your question about saving Bob's files.
Bob has two files the wtp file is for WoodTurner Pro and the json file is for Segment Pro.

With your mouse right click on the file you want to save.
A File Explorer window will pop up.
on the left hand side of the window select where you want to save the file:
I would recommend saving the wtp file in Documents/My Woodturner Pro
and the json file in Documents/My Segment Pro.

Start WTP and go to My Woodturner Pro and click on the petal.wtp file. it should open

In SP you will need to go to Share / import. to bring the json file. From there go to plans find the file and open it.

 

[Turn^3]

Thank you!