Working on my DIY Tool Post Grinder-Ugh

[Janderso]

I learned something today.
While working on the fourth or fifth spindle and the second housing I made a big booboo.
I'm turning between centers and threading 1/2" X 18. I was close so I removed the spindle from the lathe, tried a nut for fit and put it back on the lathe. I must have got the drive dog on a different jaw on the lathe.
Bad things happen
I'm learning.......

 

[woodchucker]

I learned something today.
While working on the fourth or fifth spindle and the second housing I made a big booboo.
I'm turning between centers and threading 1/2" X 18. I was close so I removed the spindle from the lathe, tried a nut for fit and put it back on the lathe. I must have got the drive dog on a different jaw on the lathe.
Bad things happen
I'm learning.......

I always re-time the thread to make sure. Still I have done some damage to parts with bad timing multiple times. Sometimes you think you are lined up and .... s h i t happens.

 

[Janderso]

I always re-time the thread to make sure. Still I have done some damage to parts with bad timing multiple times. Sometimes you think you are lined up and .... s h i t happens.

Picking up a thread is an art. I've seen Joe Pi and others do it but it's not easy in my book.
Good eye sight is a given. I'm a bit short in that dept.

 

[WobblyHand]

I got burnt recently on this. Made beautiful vee threads at 5TPI. Then switched tools to acme. Forgot to retime the threads, messed it up. Acme wasn't centered in the vee. Oh well, there's next time.

 

[Janderso]

I got burnt recently on this. Made beautiful vee threads at 5TPI. Then switched tools to acme. Forgot to retime the threads, messed it up. Acme wasn't centered in the vee. Oh well, there's next time.

We learn together my friend.
Machinist’s like Dave spent their professional lives working in this field. We spend a few hours here and there.
I’m sure most of us can appreciate what we just don’t know.
Little by little we learn just enough to get through the current issue. At our expense of course.
I’m still having a ball

 

[mmcmdl]

We learn together my friend.
Machinist’s like Dave spent their professional lives working in this field. We spend a few hours here and there.
I’m sure most of us can appreciate what we just don’t know.
Little by little we learn just enough to get through the current issue. At our expense of course.
I’m still having a ball

Don't ever think that you're done learning in this trade , along with scrapping parts . It won't happen . Ideas change everyday and engineers dream up the impossible . It's a fun trade for sure , unfortunately still looked down on by society these days . Hopefully it will change , but I always " had a ball " also .

 

[Janderso]

Modified lathe dog,
These things are worthless, too short.

 

[mmcmdl]

Move your center closer to the chuck . If you need to recut it , just do what's needed to hold the shaft and not the entire angle . You could also mount the center back in the jaws and indicate in perfect .

 

[Janderso]

Who said threes a charm?
This is number 5?
Hey, it's perfect!!
Yippeeeee

Edit, the others were pretty but this is 1018. It will work.

 

[Janderso]

Move your center closer to the chuck . If you need to recut it , just do what's needed to hold the shaft and not the entire angle . You could also mount the center back in the jaws and indicate in perfect .

I cut it every time I chuck it. But, I don't see why I have the tip so far out??
One of the basic rules, reduce stick out as much as possible.
I avoid the four jaw unless I have no choice. A 10" Bison is darn heavy. It's getting heavier every year. How is that possible ??
Thanks boss.