sphere cutting jig

[Peter Blair]

Has anyone made jig utilizing a high speed cutter like a router or other like tool? It would seem to me that if one could work off the end of the object it might be a very fast way to cut spheres?

[Dick Mahany]

Has anyone made jig utilizing a high speed cutter like a router or other like tool? It would seem to me that if one could work off the end of the object it might be a very fast way to cut spheres?

Almost, but not quite...... I had intended to make an auxiliary rotational base for my fluting/incising jig to try and do just that, but it already had so many degrees of freedom, that I decided not to take it further.

Fluting - Incising Jig.jpg

[Marvin Hasenak]

Has anyone made jig utilizing a high speed cutter like a router or other like tool? It would seem to me that if one could work off the end of the object it might be a very fast way to cut spheres?

Here is the "ultimate" version of power cutting a sphere, but for lapidary work. http://www.hplapidary.com/en/highlan...hp-110v-motors Not using a router but you should get a plenty of ideas on how to use a router as a cutter.

[Alex Zeller]

I could be wrong but I thought one of the club members said they made half spheres and glued them together. I think he was making a croquet set. I think that seams like a fun project but not enough to justify buying a sphere jig. But making one sounds like fun. What I would really like is a sphere jig that would allow me to drill holes in a repeatable way. The tail stock is fine of you want a centered hole but not so much if you want offset or angled holes.

[Marvin Hasenak]

I could be wrong but I thought one of the club members said they made half spheres and glued them together. I think he was making a croquet set. I think that seams like a fun project but not enough to justify buying a sphere jig. But making one sounds like fun. What I would really like is a sphere jig that would allow me to drill holes in a repeatable way. The tail stock is fine of you want a centered hole but not so much if you want offset or angled holes.

What you want is a jig like this one. http://www.davidreedsmith.com/articl...drillguide.htm
Or just sit it in the drill press table and rotate to whatever axis you want. But if you want it indexable, the lathe and the David Reed Smith jig is your best bet.

[Don Bunce]

https://www.woodturnerscatalog.com/p...y-Drill-Wizard

I could be wrong but I thought one of the club members said they made half spheres and glued them together. I think he was making a croquet set. I think that seams like a fun project but not enough to justify buying a sphere jig. But making one sounds like fun. What I would really like is a sphere jig that would allow me to drill holes in a repeatable way. The tail stock is fine of you want a centered hole but not so much if you want offset or angled holes.

The Oneway Drill Wizard might be what you want.

[Dick Mahany]

Back in post #6 of this thread I described one type of sphere turning jig, but I couldn't find the original maker info. I finally found it. Larry Marley posted a video of building and turning a multi laminated sphere ornament. It can be seen in action here https://larrymarley.com/Video_Slider.php?key=2.

[Marvin Hasenak]

Back in post #6 of this thread I described one type of sphere turning jig, but I couldn't find the original maker info. I finally found it. Larry Marley posted a video of building and turning a multi laminated sphere ornament. It can be seen in action here https://larrymarley.com/Video_Slider.php?key=2.

His ball turning jig is explained here. https://sawmillcreek.org/showthread....Ball-jig-plans

[Peter Blair]

Don, I have a Drill Wizard and it won't do what I am looking for. I think it will be easy to create though.
Oh, here are a few photos of the home made sphere Jig I started with. I borrowed the cutter and holder from my Kobra. I did some milling of an alignment slot with a file and it never did work as well as I had hoped and the bearing set-up for the pivot was a continual hassle but I was able to make some wonderfull hollow spheres that are about 1/16" thick so when I had it 'tweaked' it did perform.
IMG_2650.jpgIMG_2647.jpg