Vicmark, Axminster & Oneway chucks.

I have 3 Vicmarc chucks. The chucks do not have a Oneway-type setscrew, but that is not on the chuck anyway. It is on the spindle insert that threads onto the back of the chuck. Inserts can be purchased from Craft Supplies USA in Utah and other places. If I were you I would ask Oneway if they supply inserts to fit the Vicmarc or Axminster chucks.

-Jim Gott- San Jose, CA

To my knowledge, only Oneway and Teknatool provide chuck inserts with a locking screw that will ride in a matching spindle groove. On both chucks the location for the spindle locking screw is the same, so they each fit the same grooves found on the Oneway lathes and the more recent versions of the Teknatool lathes.

Just an aside about Jim's speculation. The Oneway taperlock spindle adapters are unique to the Oneway products (chucks, vacuum chucks, and some faceplates), and can not be retrofitted to other brands of chucks.

Though you didn't mention it, I'd suggest you not count out the new Supernova 2 and Titan chucks from Teknatool. They are a third generation design and a significant advancement from their earlier chucks (which, if you don't know, were ground breaking for their day, as Teknatool was the very first to develop a 4 jaw scroll chuck for woodworking).

Lyn

Bud wrote:

Vicmarc supply an adapter with the chuck to suit your lathe, the adapter has a set screw for locking the adapter to the chuck. Cheers Paul

Unless otherwise stated all references to location refer to Western Australia

Paul, Thanks for the comment but if I understand you correctly, we are talking about two different things. It appears that you are talking about "a set screw for locking the adapter to the chuck" body (something that the Teknatool chucks use also--Oneway uses a different system with its Taperlocks held with two screws), while the original questioner to which I was replying was asking about the presences of a set screw for locking the chuck/adapter assembly to the headstock spindle (actually on Oneway and Teknatool lathes it is a groove in the spindle between the threads and the shoulder). This allows for reverse turning and sanding without the risk of the chuck accidentally unscrewing, as well as preventing the same under sudden decelleration of the workpiece during forward rotation.

I have used an older VM120 which didn't have such a set screw, and it appears that Jim earlier in the thread doesn't have such a set screw on any of his three Vicmark chucks (/adapter assemblies). If I am misunderstanding you, can you supply an approximate date of when a spindle locking set screw was added?

Thanks aga> Vicmarc supply an adapter with the chuck to suit your lathe, the

Lyn,

I agree that Nova's chucks have improved as I have a supernova & got a Titan earlier in the year. However, Not sure that you're aware a design design "mistake" on nova chucks is that they do not have a m33x3.5 insert available for the Oneway spindle thread, (mistake being that this has become a popular lathe, and Nova is losing a part of the market on chucks & jaws) although my understanding is that one can special order a dedicated threaded chuck (no insert) for the Oneway lathe, from Nova...Not the way I want to go. One more design flaw with Nova is (and I am not alone on this), the "backwards tightening" of the Nova chucks, although I have gotten used to it, I feel it a lousy idea, if one uses other chucks besides nova chucks, (takes away the developed "habit" if using different brand chucks. the only real plus with nova, (and I feel it's a big plus) is that the jaws can be interchanged between the supernova & titan, Kudos to Nova for that! but, I'm getting a Oneway lathe soon and my nova chucks will be useless to me. I would keep my Nova's for the plus of the jaw interchangability, but will not fit my new lathe so I'm SOL. and yes, I'm aware that I can get a spindle adaptor(reducer) for the Oneway spindle, But I feel you are just adding to imperfecting your lathe & turnings by putting such a spindle extention on any lathe, especially if that were to be a permanant setup.

Thank You

Bud

Hi Lyn

Was it not that Teknatool adapted a self center> To my knowledge, only Oneway and Teknatool provide chuck inserts with a

I believe it was Axminster that was the first to adapt an existing metal working chuck for woodturning, which made them the second to offer a four jaw chuck for woodturning. That chuck is still available as their Precision and remains one of the best. However, my understanding is that Teknatool is indeed the first to develop and introduce a 4 jaw chuck for woodturning (most metal working chucks are 3 jaw). The original idea was presented to Woodcraft, who was sufficiently impressed with the new idea to help fund the small NZ company in bringing it to the world. I wasn't there, so I am only relying on the folks who were part of things at that time.

Lyn

Leo Van Der Loo wrote:

Thanks Lyn

3 and 4 and also 6 jaw self centering chucks have been available for the metal working industry for a long time, like the "grip true "or "set tru" chucks, problem is they are expensive, typically running from one to five or more thousand dollar in the 6" to 16" size range, that was a good enough reason for me not to use a self centering 4 Jaw chuck, I had been thinking of that, (long time ago) and used a 3 jaw, with all its shortcomings, till I got a stronghold, am very pleased with it.

Have fun and take care Leo Van Der Loo

Lyn J. Mangiameli wrote:

Not sure of the history of the scroll chuck.

I still remember the joy and ease of using my new Nova chuck a dozen or so years ago. I had used a "Masterchuck," a 4-jaw collet-type chuck made by Henry Taylor for about three years. It was as fussy a piece of work as you could imagine, but an order of magnitude above metalworking types. Like the Nova, it tightened in the expansion mode with the rotation of the lathe. In order to use it in the tenon mode, you had to use a secondary lock ring as a jam nut. Even at that, if you didn't keep the locking grooves perfectly clean, you could get a rapid disconnect on what felt, and even briefly acted, like a tight fit.

I think that touchy stinker was what taught me to stay out of the throw zone when cutting, and to use gouge angles which removed shavings with little pressure. I still have all the pieces, including the wooden jaw adaptors, but the only part of the thing I use is the 1" pin chuck, which is a pleasure when roughing, because there's never a dismount, and recentering on reversal and (slightly less reliable centering) after drying.

But, to return to the thread, why not a jam nut, if there's room on the shaft?