LumberJocks

My Challenge, to make a RINGMASTER attachment for the wood lathe.

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Project by bushmaster posted 12-17-2016 05:30 AM 3474 views 4 times favorited 11 comments Add to Favorites Watch

At the beginning of this week I was thinking of a way to make a device to cut rings if you just have a wood lathe. The one I made last week and posted worked well and created allot of interest. I wanted to build a device that could easily be made with scrap wood and available hardware. Cost should be less than 10$. So I sat down and made some lines on paper. I greatly admire those that do beautiful drawings on the computer, but if I tried that it would be a week before I could get started. I wanted to build it in a day or less. ended up taking more as I had to make some modifications, One can’t think of everything the first time, engineers don’t get it right the first time either. RECALLS..

Second picture. used 30 degrees for the slide.
Third picture. I used a 5\16 carriage bolt for the lead screw and put a plate over the nut, the nut on the inside of the end plate was a nilock
Forth and fifth picture. assembled.

Ok I will run through a design features and modifications I made along the way

Materials Oak and a scrap oak back plate as I thought it would be more stable, thought at first I would just use a dovetail slide but then decided it would not be tight enough and added the adjustable gib adjusted by some ground off wood screws. That could be improved on, but they do hold the gib in place. I maybe could of used a strip of aluminum. everything was epoxy and screwed together. Strength is important.
Sixth picture. Modified

To hold it in the tool holder I just used some readily available pipe fittings and screw another plate to the base so longer screws can be used

Set up on the lathe several things have to be done, the tool rest base must be st at 90 degrees to the bed and plates clamped to both sides so the cutter assemble can be easily positioned, and the angle set with a prtrater and adjustable set square.

Ready to give it a try, problems, well sort of.. I think the part that holds the cutters was out farther than needed, I jammed the inside cut and found out i cracked the wood. So I cut it back to the support blocks on the bottom and cut a new groove. The plates work OK and line up the cutters. I then completed the cuts for the first bowl but the lead screw being on the outside it interfered with the way I stabalized the disk with the tail stock. A solid faceplate drive system could eliminate that. Anyway I cut the end off and put the whole mechanism on the inside end. Which I recommend. I had followed the way it was on the metal lathe.

This puts the lead screw handle out where it easy to use.
This project is easy to build and can be successful with alittle patience and experimenting. The wood I used for the tool holders was too brittle, hard maple would be better, also it could be just a full 2 inches wide, and no support blocks. The cutters can be made yourself, by grinding down one end to 1/16, this would give a longer full size piece under the plates. I bought mine from ringmaster but I can buy the made in china bits here for 2$.
I found this experiment a challenge and allot of fun. and ended up with two bowls.

The first bowl was the first one I cut, and second one I made for the demonstration video I made, I explain more and you see it operating. the link is

https://www.youtube.com/watch?v=NzQ3qhMFpKs&t=7s

Hope you find this helpful and interesting. This just an idea that can be expanded on and improved.
Comments are appreciated. Thanks for looking
Ps I have another idea in the works, want to try that too.

-- Brian - Hazelton, British Columbia





11 comments so far

View John's profile

John

986 posts in 1105 days


#1 posted 12-17-2016 07:25 AM

The bowl looks great Brian, awesome job making your latest lathe attachment!

-- John, Sunshine Coast, BC, Canada.

View BobWemm's profile

BobWemm

2354 posts in 1761 days


#2 posted 12-17-2016 08:09 AM

Great job Mate.
It looks really useable.

Bob

-- Bob, Western Australia, The Sun came up this morning, what a great start to the day. Now it's up to me to make it even better. I've cut this piece of wood 4 times and it's still too damn short.

View crowie's profile

crowie

2033 posts in 1786 days


#3 posted 12-17-2016 09:56 AM

Good to see you getting some shed time even with the cold Brian.
You are certainly one clever bloke sir.
Love the blue.

-- Lifes good, Enjoy each new day...... Cheers from "On Top DownUnder" Crowie

View Jim Jakosh's profile (online now)

Jim Jakosh

19784 posts in 2941 days


#4 posted 12-17-2016 11:54 AM

Great job on that ring cutter and very nice bowls as a result. I always thought a ringmaster was one of those rigs for centering pulling down tight segmented bowl rings.

That is a neat idea to save boring out all that material—especially on a big bowl!!

Thanks for sharing, Brian.

cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View helluvawreck's profile

helluvawreck

29143 posts in 2702 days


#5 posted 12-17-2016 06:04 PM

This post is very interesting. You did a fine job on this fixture and the bowl looks great. All and all, it is a great addition to your shop Well done!.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View Monte Pittman's profile

Monte Pittman

27063 posts in 2173 days


#6 posted 12-17-2016 06:14 PM

I always learn from your posts. Great job sir.

-- Mother Nature created it, I just assemble it.

View ralbuck's profile

ralbuck

3710 posts in 2102 days


#7 posted 12-17-2016 06:59 PM

AS usual Becoming the MODIFICATION DESIGN master as well as Bushmaster!!

Great Job.

-- SAWDUST is THERAPY without a couch! just rjR

View peteg's profile

peteg

4192 posts in 2658 days


#8 posted 12-17-2016 07:08 PM

Nice design & build Brian, well done
Pete

-- Pete G: If you always do what you always did you'll always get what you always got

View doubleDD's profile

doubleDD

6838 posts in 1879 days


#9 posted 12-17-2016 09:28 PM

Very interesting. A great way to make bowls and save a lot of wood at the same time. Great job with the jig. I will have to look this over a few more times.
The bowls turned out great too.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View Julian's profile

Julian

1237 posts in 2526 days


#10 posted 12-18-2016 01:29 AM

That’s awesome. Added to my favorites. Might have to make this one day. Thanks for sharing.

-- Julian

View majuvla's profile

majuvla

11190 posts in 2703 days


#11 posted 12-19-2016 10:14 AM

Great addition to your shop. Only on video I got the clue what this is, very good idea and sure makes job done.

-- Ivan, Croatia, Wooddicted

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