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Brunton Angle Finder jig for the McNaughton Center Saver

Joined
Jun 7, 2018
Messages
5
Likes
11
Location
Providence, RI
Hello all!

A few months ago, I got the McNaughton Center Saver coring jig used off of eBay. It was advertised as "used only a few times," presumably because it is difficult to set up. While searching YouTube, I came across Gavin Brunton's channel. He designed a spreadsheet to calculate and a jig to set the entry angle based on the diameter and depth of the bowl blank. I took his instructions, built the jig in CAD, and then printed it on my 3D printer.

View: https://www.youtube.com/watch?v=QViwRjm0dYc


The 3D model files can be downloaded from https://www.thingiverse.com/thing:3366592

Prints can be ordered from https://www.thingiverse.com/thing:3366592/apps/print/#apps . Note the this is a third-party service and I don't make any money off of it, and can't support any technical issues with it.

Gavin's Channel with the original videos: https://www.youtube.com/channel/UClXgFhhTjQxrOJQIT3Go61g

He has information in the comments of this video on how to get the spreadsheet he designed to calculate the angles.

View: https://youtu.be/h-KYdwELDNI

I hope you enjoy!
 
Joined
Aug 14, 2007
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Location
Eugene, OR
Well, this is a new one to me..... Have to ponder this for a bit, especially since I have always done it by eyeball..... Some possibilities here.

robo hippy
 

Bill Boehme

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I see that you can buy the tool made with a 3D printer and they give three links, but I haven't found any information on the cost. I could make one the old fashioned way with a coping saw and a drill press, but that's too much like work and the end result would be pretty crude.
 
Joined
Jun 7, 2018
Messages
5
Likes
11
Location
Providence, RI
I see that you can buy the tool made with a 3D printer and they give three links, but I haven't found any information on the cost. I could make one the old fashioned way with a coping saw and a drill press, but that's too much like work and the end result would be pretty crude.

I think you have to go through the process of selecting material and printing provider before it will give you a quote. I will see if I can figure out an easier way.
 

Emiliano Achaval

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Website
hawaiiankoaturner.com
Well, this is a new one to me..... Have to ponder this for a bit, especially since I have always done it by eyeball..... Some possibilities here.

robo hippy
Same here, have to admit I did a lot of funnels when I started, maybe this can cut the learning curve.
 
Joined
Jan 16, 2022
Messages
70
Likes
31
Location
Caledonia, WI
Hello all!

A few months ago, I got the McNaughton Center Saver coring jig used off of eBay. It was advertised as "used only a few times," presumably because it is difficult to set up. While searching YouTube, I came across Gavin Brunton's channel. He designed a spreadsheet to calculate and a jig to set the entry angle based on the diameter and depth of the bowl blank. I took his instructions, built the jig in CAD, and then printed it on my 3D printer.

View: https://www.youtube.com/watch?v=QViwRjm0dYc


The 3D model files can be downloaded from https://www.thingiverse.com/thing:3366592

Prints can be ordered from https://www.thingiverse.com/thing:3366592/apps/print/#apps . Note the this is a third-party service and I don't make any money off of it, and can't support any technical issues with it.

Gavin's Channel with the original videos: https://www.youtube.com/channel/UClXgFhhTjQxrOJQIT3Go61g

He has information in the comments of this video on how to get the spreadsheet he designed to calculate the angles.

View: https://youtu.be/h-KYdwELDNI

I hope you enjoy!
Nick, Thanks for for sharing. I down loaded the files and found a person with a 3D printer who printed me two sets for $20.00!
I was having issues with the bottom of the middle bowl being thin The jig has helped.
 
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