Time I got back to work on the rotary table. Here's the materials I have gathered to date.
4" x 4" x 3/8" crs plate
4" x 2" square tube
4" x 1" round steel
3 1/2" x 1 1/2" round steel
bearing from treadmill roller
worm from treadmill incline
I turned a bolt to be a sliding fit to the bearing for an axle. Today I was looking over the parts wondering which worm set up to use. I placed the 80 tooth change gear from my lathe next to the worm screw and wohoo! It fit! Next, I tried the fit of the gear on the axil, WOHOO! Twice in a row, it fit! Is that beginners luck or what!
Now to think about which gear to actually use in the RT. A 60 tooth gear would give me 6° resolution; an 80 tooth gear, 4.5°, right?
I'll ask for recommendations on the choice of gears, as long as it is a mini lathe change gear...
Now I feel confident this is doable for me!
I am going to turn the 3 1/2" round to be a duplicate of my minilathe spindle nose so I can easily use my 4" independant jaw chuck, 3" 3 jaw chuck, or faceplate.
So, today, I will work on the spindle nose and on cutting off a piece of the worm screw and making an axle for it..
I have a couple of skare bearings set aside for the worm screw axil, also. I have posted pictures here:
http://s571.photobucket.com/albums/ss157/chucketn/Machining/Rotary%20Table/By the way, how do you put pictures into posts?
And, forgot to add, I gave up on using the tradmill flywheel when I got the big disk sawn in half.