etpm
Veteran Member
- Joined
- Jun 30, 2021
- Messages
- 2,033
- Location
- Whidbey Island, WA
- Tractor
- Yanmar YM2310, Honda H5013, Case 580 CK, Ford 9N
I have an old B. F. Barnes lathe that was probably made in the late 1890s and certainly no later than 1906. I have been acquiring age appropriate stuff to go along with it, stuff that was made no later than 1906. The lathe itself is in very good shape, not just cosmetically but also mechanically. Just for fun I tried turning some shafts that had a plus .0002" minus .0000" tolerance over a 1 inch distance. I was able to do so.
Anyway, I bought an indicator with a total .010" travel that was made in 1906, my cut off date. Today I decided to clean and oil the thing. Doing so I bent the needle. While straightening the needle I managed to unseat a spring. So I had to take it apart. It turned out the very end of the needle was slightly bent and the needle needed some polishing. I straightened the needle after polishing, which was a very delicate operation.
Now I had to put it back together and I couldn't figure out how to hold the spring to the needle so that I could wind the spring so that it put tension on the needle. In the end I used some very fine copper wire to tie the spring in place. Then I assembled the indicator, cut the wire, and it now works better than it ever has.
After patting myself on the back (almost sprained my arm!) I figured that maybe the idea of using wire to tie stuff in place during assembly, especially springs, might help other folks too. So that's why I posted this. Mostly. Partly.
Cheers,
Eric
Anyway, I bought an indicator with a total .010" travel that was made in 1906, my cut off date. Today I decided to clean and oil the thing. Doing so I bent the needle. While straightening the needle I managed to unseat a spring. So I had to take it apart. It turned out the very end of the needle was slightly bent and the needle needed some polishing. I straightened the needle after polishing, which was a very delicate operation.
Now I had to put it back together and I couldn't figure out how to hold the spring to the needle so that I could wind the spring so that it put tension on the needle. In the end I used some very fine copper wire to tie the spring in place. Then I assembled the indicator, cut the wire, and it now works better than it ever has.
After patting myself on the back (almost sprained my arm!) I figured that maybe the idea of using wire to tie stuff in place during assembly, especially springs, might help other folks too. So that's why I posted this. Mostly. Partly.
Cheers,
Eric