First successful segmented item

Signed-In Members Don't See This Ad
Signed-In Members Don't See This Ad

chartle

Well-Known Member
Joined
Mar 13, 2015
Messages
1,161
Location
Pgh, PA
I now remember how to check for roundness of a sphere. You use something like a cup or tube and if it hits flat all the way around its circular. For these I used the top cut off the top of a medicine bottle.

I'm too shallow near the top and in the middle and bottom I'm good until I hit the too flat bottom.
 

Attachments

jttheclockman

Well-Known Member
Joined
Feb 22, 2005
Messages
12,203
Location
NJ, USA.
I now remember how to check for roundness of a sphere. You use something like a cup or tube and if it hits flat all the way around its circular. For these I used the top cut off the top of a medicine bottle.

I'm too shallow near the top and in the middle and bottom I'm good until I hit the too flat bottom.
Are you doing by eye or are you using a jig to turn?? I have been wanting to make a jig for spheres. It is on my to do list.
 

chartle

Well-Known Member
Joined
Mar 13, 2015
Messages
1,161
Location
Pgh, PA
Are you doing by eye or are you using a jig to turn?? I have been wanting to make a jig for spheres. It is on my to do list.
I took each ring down to approx size and then connected the segments. My issue on the top was I had a small catch I had to sand out and the flat bottom was due to me not having my lathe set up right. I used a PVC sort of donut chuck that didn't have enough of the end sticking out. I'll post pics when I do the next one. The chuck looks like this.



I found a video on turning a sphere by freehand. Our demo last night was the same thing. The demo was something that can't be rushed and checking the wood frequently. Beats buying a sphere tool. Here's the link for the video.
Turn A Perfect Wood Sphere Or Ball – No Expensive Jig
I can't do it that way, rotating it between centers, because of how I did the top.
 

Attachments

Last edited:

Woodchipper

Well-Known Member
Joined
Mar 15, 2017
Messages
2,395
Location
Cleveland, TN
Love the donut chuck. Good idea. Might have mine glazed, though.:tongue:
I get the idea of how you are turning. Thanks for the photo.
 

chartle

Well-Known Member
Joined
Mar 13, 2015
Messages
1,161
Location
Pgh, PA
Love the donut chuck. Good idea. Might have mine glazed, though.:tongue:
I get the idea of how you are turning. Thanks for the photo.
I pretty much make rings and then knock off the "corners"

But I now realize that I think I'm going to make a dedicated shorter real donut chuck
 

Woodchipper

Well-Known Member
Joined
Mar 15, 2017
Messages
2,395
Location
Cleveland, TN
The fellow who did our demo used a piece of the wood as a jam chuck. Had to deepen it to accommodate the "tenon" on one end.
 
Top Bottom