• Beware of Counterfeit Woodturning Tools (click here for details)
  • Johnathan Silwones is starting a new AAW chapter, Southern Alleghenies Woodturners, in Johnstown, PA. (click here for details)
  • Congratulations to Paul May for "Checkerboard (ver 3.0)" being selected as Turning of the Week for March 25, 2024 (click here for details)
  • Welcome new registering member. Your username must be your real First and Last name (for example: John Doe). "Screen names" and "handles" are not allowed and your registration will be deleted if you don't use your real name. Also, do not use all caps nor all lower case.

Brunton Angle Finder jig for the McNaughton Center Saver

Joined
Jun 7, 2018
Messages
5
Likes
10
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
Messages
5,436
Likes
2,792
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

Administrator
Staff member
Beta Tester
TOTW Team
Joined
Jan 27, 2005
Messages
12,886
Likes
5,169
Location
Dalworthington Gardens, TX
Website
pbase.com
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
10
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

Administrator
Staff member
Beta Tester
TOTW Team
Joined
Dec 14, 2015
Messages
3,307
Likes
4,226
Location
Maui, Hawaii
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.
 
Back
Top