Help with Jam chuck

Re: Help with Jam chuck

Dave Peebles Lyons, Ohio!

>Hi Chuck,

I think you are on the right track. But... I would continue to use the tail stock. I have done many of my bowls this way. Just turn off the base as close as you can to the live center point. If you get it small enough, you can just use a sharp chisel or carving gouge to take of the last little nib. A little sanding should give you a good looking foot.

I now have a nice vacuum chucking system for turning off the foot. It has certainly spoiled me. :) But the other method works very well.

Best wishes,

Dave

Re: Help with Jam chuck

Ron Sardo in PA

>Knock out the metal point on your live center and replace it with a wood point made from a dowel. Rounding over the wooden tip seems to work best.

or

Knock out the metal point and place a soda bottle cap over the live center. I have a bottle cap with some foam backed sandpaper glued on that seems to work well for me.

Re: Help with Jam chuck

Brian Roberts

>Hi Chuck - Before I knew about all the wonderful vacuum and scroll chucks and the like, and sometimes still, I did just what you are talking about.

I made a jam chuck, which was often just enough to keep the piece situated properly, as far as running in as close to the same axis as possible, and taped it on. The tape often left adhesive behind, which can be a PITA, and I usually, out of fear, used so much tape that I couldn't see the bowl, but it worked fine.

Now I use the narrow stretch wrap (4" wide) stuff that is available - it leaves no residue and the stretch factor gives me a little more confidence.

I often use it as a back up when I use the vacuum chuck - I just have a hard time totally trusting that the vac chuck won't fail me!

Brian

Re: Help with Jam chuck

Chuck Ludwigsen

>Thanks Brian.

I thought about the stretch wrap. But for the life of me, I can not find it here in Memphis. I've checked Home Depot, Sams, and Costco. Have not checked Lowes yet.

Any ideas where I might get it?

Chuck in Memphis, TN.

Re: Help with Jam chuck

Bill Hale / The Wood Spinner

>Chuck

I do all of mine like Dave. I jamb chuck from the inside using cloth between the bowl and the chuck. As I start all of my work between centers there is a center mark in the spigot already. Bring the live center up and locate it in the hole but do not tighten yet. Manualy rotate the work back and forth as you tighten the tail. This will help center the work on the front side. Turn away the spigot to 1/4 to 3/8 depending on the size of the work. Sand the bottom on the lathe. Remove from the lathe trim off the tip and hand sand the center.

I do this on bowls up to about 20 in. Dia.

Good turning and be safe

Bill

Re: Help with Jam chuck

Bill Howatt

>Another option is to use a donut or compression chuck where the bowl is trapped between two pieces of ply or mdf.

Bill

I justy recently bought it at Tractor Supply.

Al Crandall -Pendleton, IN.-

>I bought two rolls, (a lifetime supply, I hope), for half price closeout. It cost me about $2.50 per roll.

Office Depot or Staples

Russ Fairfield

>

Re: Office Depot or Staples

Chuck Ludwigsen

>Thanks Russ.

About the time I read your subject line it dawned on me to try a U-haul store or a mailbox etcetera (ups store). I have a couple of those on the way home so just might stop in and check.

Chuck in Memphis, TN.

Re: Help with Jam chuck

John Leonard

>Walmart, in the household goods department.