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Old 12-13-2018, 11:06 PM
Shade Tree Welder's Avatar
Shade Tree Welder Shade Tree Welder is offline
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I would recommend a 10 or 12 inch four jaw chuck for a 14" swing.

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Old 12-14-2018, 12:10 AM
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LKeithR LKeithR is offline there a prize?
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Originally Posted by Lu47Dan View Post
...Until you run into a repair, either a weld up &turn back to size or a turn and sleeve. Those I want the 4 jaw indie for.
The 4 jaw scroll would be paid for and then some after the first 150 parts...
Don't get me wrong, a 4-jaw scroll would be handy to have; you just need to know what it's uses and limitations are.

I actually have a job right now that I could use one for. It's 2" cold-finish square with a round spigot feature on one end--tolerances are not all that tight. I did one small batch before using a 4-jaw independent and, of course, it works fine but it is very fiddly and time consuming to set something like this up. A 4-jaw scroll chuck would be perfect for this.

I while ago I actually discovered that one of our customers had a 4-jaw scroll chuck kicking around. He brought it down so I could look at it but, for a number or reasons I decided it wasn't right. First and foremost it was a 12" which, while it would fit, would be pretty big for my 13" lathe. I think I figured out that I could hold up to about 4-1/2" square with the conventional jaws and maybe 9-1/4" with the jaws reversed. It was also quite beat up and it had no backing plate so I felt that the 500 bucks he was asking for it was just too much.

I wouldn't have had any qualms about running it though; while my lathe is only a 13x40 it has a D1-6 spindle and weighs about 3200 lbs. It would have handled the chuck no problem.

That Lodge & Shipley sounds like a winner--their bigger lathes are as good as anything out there if they're in good shape. I've always had a bit of a soft spot for that brand and If I were 25 years younger and it was close enough I'd be all over it.

Couple of pics for teasers. First one is listed as a 21" x 60" and the second is a 20.5" x 54". Both appear to be in real nice shape...drool...
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Measure twice and cut once...or...wait, was that the other way around?
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Old 12-14-2018, 01:40 AM
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greywynd greywynd is offline
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I think the Harrison lathes we had in high school had L00 spindle mounts.

Question for the job, are they short enough that they don’t go into the spindle? Or is your spindle bore big enough to fit?

I think I’d be more apt to make it into a mill job. Length with a stop, then depending on lenght an angle plate or make a fixture that hangs the part down over the front edge of the table.

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Old 12-14-2018, 04:30 AM
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Lu47Dan Lu47Dan is offline
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Ron thanks for your input, I will have to see if there is a 12" in the listing.
Keith, I liked the L&S, the one shop I worked in had. It was huge but short, like maybe 40" between centers. It would take one hell of a cut. The millwrights used it all the time.
Mark, will go into more detail about the job later today or tomorrow.
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Old 12-14-2018, 07:24 AM
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Ironman Ironman is offline
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Originally Posted by terry lingle View Post
The hidden issue with chuck sizing is interference as you open the jaws. it is machine dependent.
I have that issue with one of my lathes where a 10 inch chuck will open wider than a 12 inch. a larger chuck is not automatically a better fit to a lathe.
Some things to consider are weight, opening clearance, how far out from the spindle bearing you are and clearance over the cross slide.
This is an issue to pay attention to. If you don't, and buy an oversized chuck, you end up with an extra heavy small chuck in reality.
I have a large 3 jaw that I almost always use, but I have a gap bed lathe and the gap gathers dust as I never put it back in. That way I can chuck something bigger than 4 inch without the jaws hitting the bed. It does not matter what size the lathe is, there will always be a chuck that causes interference with the bed if larger then needed.

The other notes about a set true are almost correct. A set true, once set for a specific diameter, is good for a range + or - the size you set. So if you had a shaft and zeroed the chuck and carved .250 off the far end, then flipped it end for end, you will still be on the money.
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Old 12-14-2018, 10:53 AM
4gsr 4gsr is offline
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Location: Victoria, TX
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If your still interested in a 4-jaw independent chuck, I have both a 8" and 10" Cushman, both with integral L-00 mounts here. The 8" was a NOS one I bought thinking I would use it on my used to own 13" lathe and never did. And the 10" one I bought new back in 1979 and has been used only a hand full of times over the years. If interested PM me. Ken
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