spider?

[James EPS]

Anyone using a 4 screw spider for holding and doing barrel work? I have a new lathe with scroll 3 jaw, 4 jaw indy and 4 screw spider. I always used a spider on my last lathe with no issues but with this one im getting excessive vibrations and poor work finish. My 4 jaw is just to damn big I don't like using it.

I'm considering getting a new chuck of some sort but until then what would be the best way to isolate for the vibration. I dont have alot of contact area under the brass tipped screws. Im considering copper or aluminum wire, maybe copper tubing pieces.

Any suggestions would be appreciated.

Thanks
James Eazor

 

[X Ring Accuracy]

Got a pic of your setup? May help in identifying an issue

 

[jkohler]

My spider only has 3/8 bolts on it I get chatter on my spider to. I have found that if I put a 1/2 inch wide aluminum ring under the bolts the chatter goes away. Mine is the one grizzly sells. I think I'm going to punch the holes out to 1/2 and be done with it.

 

[James EPS]

You hit it correct Jkohler, I have a Grizzly G0509G Gunsmith Lathe with a D6 Spider same as you describe. I really like the simplicity of dialing in a barrel and how close I can work to the chuck. I tried some aluminum wire I had laying around and I did isolate the vibration somewhat. My plans are to get a smaller 6-8" tru type chuck for barrel work. I guess maybe I should try poking out the holes to 1/2" or larger for a little more grip.

Thanks
James

 

[jkohler]

Tinman
I have had real good luck with just putting a thin aluminum shim under eatch bolt. I then took a piece of 1 1/2 inch aluminum and made a 1/2inch wide split bushing. Works great now but punching the bolts out to 1/2 will be the best fix.