Re: SB 9" 3C Collet Nosepiece Insert Source ?


Bill in OKC too
 

I can't speak to your lathe, but neither of mine have ACME threads on the spindle nose. They are 60 degree V threads. I've seen people use Atlas accessories on a South Bend, and vice versa on the 1-1/2"-8TPI threads, too. Might want to look again real close. With a thread gauge in hand. Or someone may have ordered it with an ACME thread, or modified a spindle. Stranger things have happened.

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)

A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)

On Friday, October 15, 2021, 01:12:41 PM CDT, Sam <i.am.sam.sam.i.am2008@...> wrote:


The spindle nose is an Acme thread.  The McMaster link shows 60 degreee V threads.


On Fri, Oct 15, 2021 at 12:46 PM Bill in OKC too via groups.io <wmrmeyers=yahoo.com@groups.io> wrote:
Can buy one of these, and make your own thread protector, if you like: https://www.mcmaster.com/nuts/thread-size~1-1-2-8/

Some minor modification to make it just what you want for popping the collet sleeve back out.

I've mentioned that I'm a cheap bastrich, right? You could make your own, if you can cut 1-1/2-8 internal threads yourself, too. I can't yet, Couple more lessons in class to learn that. Anyone care to guess what I'm going to be making when I'm supposed to be working on the class project? Also need one for my SB Heavy 10L, with the 2-1/4-8tpi spindle nose. I have already made stub spindles for both machines so I don't have to go to the machine to test fit stuff I make for it.

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)




On Friday, October 15, 2021, 11:25:13 AM CDT, mike allen <animal@...> wrote:


        these folks have one

        http://www.mymachineshop.net/product_p/10146.htm

        You will also need one of these if you don't have one to remove the adapter , though I can't say for sure this protector will work on a SB .

        http://www.mymachineshop.net/product_p/10089.htm

        animal

On 10/14/2021 5:40 AM, Sam wrote:

SB 9"  3C Collet Nosepiece Insert Source ?

 

Who sells the headstock spindle nosepiece for 3 C  collets ?

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