I’m thinking the universe has a different plan in mind
Murphy was in the house today, hardcore. If it could go wrong, it likely did. First up, while drilling the holes as gash marks for the new gear, my rotary table managed to come apart at the seams. I should have known something was wrong when the first drill bit broke while drilling, but stubborn old me figured I was just was just leaning a bit too hard on the feed. I have a pic of it but for some reason, WordPress doesn’t want to upload it. There is a retaining bolt in the lower spindle that holds it all together. Sadly, that bolt is nowhere to be found any longer. I couldn’t find it in the pelican case where I had been storing it, I can’t find it in the shop anywhere but I didn’t hear anything drop either: I think it has been missing for a rather long time. And of course, its an odd shape AND metric thread so not easily remade. (and yet another project that will need addressed at some time.)
Of course, being the stubborn ol’ coot that I am, I had to keep pressing forward. I went ahead and took the old blank, made an arbor to hold ti in the lathe again(the 3-1), and refaced the cuts that I couldn’t use. I then placed it back on the the southbend with the hob I made and started over. Still no success: instead of 35 teeth, this one has 33.222 (guesstimate) teeth. SLOPPY Grrrrr.
Here is a pic of it all in motion, You can’t see the cutting teeth on the hob as it is in motion (as shown by the jaws on the chuck) but you can see the chip build up around the gear.
I had to make that peice that the gear is riding on. And it is jury rigged to the southbend cross-slide. Milling clamps are really versatile things to have around when you are one-offing anything.
But as you can see, I have managed to get pretty good at cutting threads. Of course, there is much more to learn about it, and I will get there, and working with this machine will teach me MUCH more than a more modern machine will. I have no issues doing all this stuff manually as I learn more about the theory and practice of the functions and abilities needed. If I were programming a CNC machine to do this, I would learn nothing about the ‘tricks’ the old timers knew, nor would I appreciate as much, the things they did with these tools.
I am not done with this project by anymeans, but I am going to let it idle for a day or two. Maybe Murphy will lose interest in my actions and go away. Time to watch the fuel usage on the genny, and I still need to get the primary genny back online before we are down to none.
All in all, even with the failures, it was a good day. Much better spent than watching the tyrant in chief swear in for another 1461 days. Gonna be a long strange trip these next four years and I feel we ‘ain’t seen nuthin yet’ as for what TPTwB have in store for us mundano.