I recently purchased the Escoulen chuck and was wondering does anyone know of any directions or tips on using it? The directions that came with the chuck are not very thorough. Any help is appreciated.
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Eccentric turning
- Thread starter Big Dog
- Start date
While not specific to the Escoulen chuck, a video by Chris Stott shows some basics in eccentric turning. In this video, Stott also shows the use of an eccentric chuck no longer made (Sorby??) that might apply to your chuck. It's probably worth your viewing if you can get your hands on it.
Tenon for Escoulen Chuck
Before you can do anything with this chuck you have to be able to mount the workpiece properly (that applies to any chuck).
The tenon should be tapered slightly and should reach the far side of the ball but not stick out.
The tenon gauge should fit over the tenon half-way along the length. This should give the proper amount of taper.
Get a big hammer and pound the workpiece into place (a controlled drop onto a concrete floor will also work).
If the tenon starts to loosen, try water to get it to expand in the ball.
After parting off the workpiece, remove the tenon from the chuck using the hammer and a knock-out bar (or a bar and another controlled drop).
I would suggest that you practice making a few tenons and testing their fit as the first step in your journey toward mastering this interesting and challenging piece of equipment.
That is all that comes to mind at the moment. The doctor says that I have A.A.D.D. but he doesn't... Hey, look at that chicken!
I am not an expert by any means, but will try to answer any question you might have.
Before you can do anything with this chuck you have to be able to mount the workpiece properly (that applies to any chuck).
The tenon should be tapered slightly and should reach the far side of the ball but not stick out.
The tenon gauge should fit over the tenon half-way along the length. This should give the proper amount of taper.
Get a big hammer and pound the workpiece into place (a controlled drop onto a concrete floor will also work).
If the tenon starts to loosen, try water to get it to expand in the ball.
After parting off the workpiece, remove the tenon from the chuck using the hammer and a knock-out bar (or a bar and another controlled drop).
I would suggest that you practice making a few tenons and testing their fit as the first step in your journey toward mastering this interesting and challenging piece of equipment.
That is all that comes to mind at the moment. The doctor says that I have A.A.D.D. but he doesn't... Hey, look at that chicken!
I am not an expert by any means, but will try to answer any question you might have.
john lucas
AAW Forum Expert
Big dog
Going from 220 to 110 is easy. Going the other way is much harder.
You may be able to do outboard turning but most lathes have different spindle thread sizes on the outboard. I'm not sure about the PM90.
Personally I hate gap beds. They get in the way when doing a lot of other work and limit the thickness of things that you can do that will actually fit the gap. I filled the gap with a metal bridge on my last antique lathe that did have a gap.
Going from 220 to 110 is easy. Going the other way is much harder.
You may be able to do outboard turning but most lathes have different spindle thread sizes on the outboard. I'm not sure about the PM90.
Personally I hate gap beds. They get in the way when doing a lot of other work and limit the thickness of things that you can do that will actually fit the gap. I filled the gap with a metal bridge on my last antique lathe that did have a gap.
john lucas
AAW Forum Expert
Sorry Screwed up, I got interrupted. I meant to answer the eccentric turning. I find that it really helps to draw and eccentric turning. You are basically just drawing a regular spindle turning, but using different axis. It is more difficult drawing for the Escoulen chuck because you have a 3rd dimension but you can make several sketches and get a pretty good idea of what is happening. I'll use 2 axis as an example. I draw a straight line between 2 different centers and then make really light sketches of shapes along these axis and see how they interact. Go back and change them as necessary by just erasing them and drawing new designs. When I get what I want I draw in the final piece with dark lines. This way I have a drawing of eachof the turnings done on one axis and a drawing of what the final piece will look like.
The only other thing I would recommend is doing test pieces out of scrap. I turn a lot of 2x2 pieces from old 2x4's to get a feel for whether the shape I drew actually works. These can be done quickly because you don't care about the finish.
The only other thing I would recommend is doing test pieces out of scrap. I turn a lot of 2x2 pieces from old 2x4's to get a feel for whether the shape I drew actually works. These can be done quickly because you don't care about the finish.
Thanks John, now I'm all messed up 😉 😀
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Big Dog.
I noted with interest your topic about eccentric turning.
A few weeks ago a good friend of mine in Hamilton,Ontario had some input about that on my own site at
http://wmyoung.proboards23.com/index.cgi?board=chaos&action=display&thread=1116030950
He is one of the skilled turners that has no chucks but does most turning the old fahioned way but he produces some wonderfull turnings.
Unfortunately, he must be having a problem with his photo hosting site because some of them are missing but if you care to inquire about it there, you may be able to save the price of your chuck if it is not what you expected of it and /or , if it is still returnable.
J.P. Rap is a very obliging fellow and I am sure he would be willing to re-post some of those pictures if it is of interest to you.
Best regards.
W.Y.
I noted with interest your topic about eccentric turning.
A few weeks ago a good friend of mine in Hamilton,Ontario had some input about that on my own site at
http://wmyoung.proboards23.com/index.cgi?board=chaos&action=display&thread=1116030950
He is one of the skilled turners that has no chucks but does most turning the old fahioned way but he produces some wonderfull turnings.
Unfortunately, he must be having a problem with his photo hosting site because some of them are missing but if you care to inquire about it there, you may be able to save the price of your chuck if it is not what you expected of it and /or , if it is still returnable.
J.P. Rap is a very obliging fellow and I am sure he would be willing to re-post some of those pictures if it is of interest to you.
Best regards.
W.Y.