I have a chuck in decent shape that is an extra. The bore dia. is slightly over 4". I often make shafts which have a square drive machined on one end. I will be retiring in 4 months and will no longer have the long bed of my mill at work with which to mill the square. I will be called upon to make the shaft in my home shop when my replacement doesn't have time.
I would like to know if anyone may have or know of a design idea I can use to make the 3-jaw chuck (12" O.D.) into an indexing chuck which I can feed the excess shaft length through. This would allow the shorter mill table (48") to be used to mill these flats. I hardly do more than 4 or 6 flats, although the option of having 24 divisions may be handier in the long run. I do have a 15" Troyke table I could accurately lay out divisions with.
There will be need to be an ability to turn, locate and lock the chuck in the desired position. I would also need to make a dead center for the end of the shaft. I anticipate there could be some vibration problems with my face mill.
Thanks all, you've been a great help in the past. KQ
I would like to know if anyone may have or know of a design idea I can use to make the 3-jaw chuck (12" O.D.) into an indexing chuck which I can feed the excess shaft length through. This would allow the shorter mill table (48") to be used to mill these flats. I hardly do more than 4 or 6 flats, although the option of having 24 divisions may be handier in the long run. I do have a 15" Troyke table I could accurately lay out divisions with.
There will be need to be an ability to turn, locate and lock the chuck in the desired position. I would also need to make a dead center for the end of the shaft. I anticipate there could be some vibration problems with my face mill.
Thanks all, you've been a great help in the past. KQ