Today’s goal was to fix this thirty five year old floorjack.
I loaned it out to a friend twenty years ago who bent it somehow, so it had a pretty hefty parallelogram to the frame. I straightened it out no problem, but it would immediately fold over again under load. To fix THAT, I welded plate steel to the bottom. After the repair, and since I had several other jacks, this one became the outside jack because it wouldn’t sink in the gravel.
Recently (this century, I think), the handle started jamming or popping out due to all the dragging and tugging it has suffered, and I had had enough. I unscrewed the handle capture bolt and found its little dog point had been jaggedly sheared off. I needed to make a new step bolt.
Here is the old and the new:
And the channel in the handle that the dog point engages: Focus!
BUT. To get to this point, I had to find a 3 jaw chuck, since neither of the chucks on my prewar Atlas Babbitt lathe would hold a small hex reliably. WTH, is that a 2.5 inch 3jaw?
I found a local machinist had a surplus new-in-box imported 5” 3jaw, and eBay had a cast iron back plate that would adapt it to my 1.5”-8 headstock with a little machining and a little drilling.

Viola! Chips!
And now I know a little more about what tooling this abused antique lathe needs. Also, I won’t have to crawl under another precariously-supported truck because the handle pulled off again.
Dog. Point!