Follow Rest Repair Options-Ideas Please

[Janderso]

Hi,
Question for you. How would you go about this?
I bought this follow rest from a guy in New Zealand delivered for less than $300. It's for my Clausing Colchester 15X50
The issue,
Please see the pics.
Both adjusters are off, the one installed works ok, it rotates with just a small bit of off center binding.
The adjuster was drilled off center which makes adjusting the finger difficult. It binds every revolution. You can see it's off by .100" ish.
The 3/8" internal bolt the finger rides on is left hand thread.
The roll pin is in there. I couldn't get it to budge at work. When I get home i'll heat it up, put it in a V block with a proper roll pin punch and get it out, or I'll drill it out.
Would you re-drill the adjuster in the center, single point the new bolt to fit properly?
Or would you do something else?
I can't think of any other way of fixing this.
I appreciate your ideas

 

[BtoVin83]

To me it would be easier to get the center stud out and make a new stud to fit, bore the adjuster out on center and the new stud can have an over sized head to fit in the adjuster. Don't get all carried away with a super precision press fit just make them so there isn't any slop and the roll pin will hold it in place. Lucky you now you get to make a left hand thread stud.

 

[Janderso]

Lucky you now you get to make a left hand thread stud.

Yeah, I'll probably lose sleep over this one.
I've never cut a left hand thread with a single point tool.
It will be good for me, builds character or brings out character?

 

[Asm109]

Left hand threads allow you to thread AWAY from the chuck. Absolute piece of cake. Run fast, get good surface finish. After this you will wonder why the world settled on righty tighty, lefty loosey

 

[ErichKeane]

Left hand threads allow you to thread AWAY from the chuck. Absolute piece of cake. Run fast, get good surface finish. After this you will wonder why the world settled on righty tighty, lefty loosey

BUT, if we'd settled on lefty-tighty, righty-loosey, would the head of the lathe be on the other side?

That said, most people are right handed, and muscularly we are better at an 'outward' twisting motion, which is why righty-tighty.

 

[Janderso]

I read somewhere, To check to see if you are going to cut left hand threads, watch your lead screw rotation and your chuck/spindle. Left hand threads will be the opposite, right hand threads, both the spindle and lead screw turn the same direction.
Do I have it right?

 

[7milesup]

You probably have already seen this but take a look at Joe's video on threading.

 

[Janderso]

I did not expect this.
I’m drilling out The bolt so I can make a new one with a larger, centered shaft.
All of a sudden my tail stock, which was locked a little, started moving back and the bolt at the end of the drill was not moving, just unthreading left handed.
What a kick!
I’m going with a .425” hole-pin gauge shown. Fits perfect. (I switched to the four jaw to bore out the hole)
Now for the left hand bolt..........
Got the left hand thread cut.
I had to make all kinds of lever changes, direction, 29 degree angle on the other side, had to make sure I had relief on the cutting side of the HSS bit I ground.
Came out good.
Just need to part this off, flip it in a smaller collet and cut the press fit .426”.
I sure like this Jacob’s flex chuck for holding a part with threads.

 

[Jimsehr]

Jeff
you might google Frank Ford follow rest He made a neet one that fits on qctp.
Jim Sehr

 

[Janderso]

I’ll check it out Jim.