Boring in the mill with lots of chatter. Ideas?

[Janderso]

You should get a boring head with a 30 taper shank and mount directly into the spindle taper; way too much overhang, no wonder it chatters.

After a quick search, it appears these heads unscrew and i did find a 30 taper that is pretty cheap. Good enough for the Shars boring head.I think I’m making progress here.
Thanks

 

[mmcmdl]

I think I’m making progress here.

And that's all that matters !

 

[Janderso]

And that's all that matters !

In fact,
I just bought a 30 taper from Shars for $42 shipped. Plus, It has the correct draw bar threads, hard to find. They are usually metric.
It came apart really easily.
I guess I could make a metric draw bar. Never threaded metric. You know my Colchester can do it, the question is, can the operator handle it?

 

[mmcmdl]

I guess I could make a metric draw bar. Never threaded metric. You know my Colchester can do it, the question is, can the operator handle it?

Of course you can ! You can't mess up a G job , just call it revision 1A or whatever . If you get up to rev 9Z , well , we'll have a heck of a fun thread to follow .

 

[macardoso]

NMTB 30 Shank 1-1/2-18 Threads for Boring Head

www.shars.com

NMTB30 to 1.5-18 boring head adapter. I'm guessing you have an ISO30 spindle but you should look for something like this.

EDIT: I didn't read to the end and whoops, you already got one.

 

[benmychree]

Way too much money for what it is, keep looking, Jeff

 

[Janderso]

NMTB 30 Shank 1-1/2-18 Threads for Boring Head

www.shars.com

NMTB30 to 1.5-18 boring head adapter. I'm guessing you have an ISO30 spindle but you should look for something like this.

EDIT: I didn't read to the end and whoops, you already got one.

That’s it.

 

[Janderso]

Way too much money for what it is, keep looking, Jeff

Seemed pretty reasonable to me. $29 for the part. $15 for Fed X to get it here was the cheapest.
I am on a fixed income now. We’ll see what the boss says when she does the bills. I haven’t spent a dime in three weeks.

 

[benmychree]

Seemed pretty reasonable to me. $29 for the part. $15 for Fed X to get it here was the cheapest.
I am on a fixed income now. We’ll see what the boss says when she does the bills. I haven’t spent a dime in three weeks.

Perhaps I read it wrong, it is a affordable product after all.

 

[macardoso]

I wouldn't grind that for $30 Maybe add an extra 0 to the end.