12-22-2021, 11:52 PM
It's only taken five and a half years but today I got the gear train for the Paradisi head finished! It needed something to push it up the priority list after languishing in a corner all this time; I need to cut a metric thread thus need a 127-tooth gear for the lathe thus finally had a need to get the universal dividing head operational.
I picked up a set of gears in 20dp, really a shade small for the job (I suspect the originals were probably somewhere around 16dp) but they will do the job. Had to bore the gears 22mm and cut 6mm internal keyways in them all on the shaper, make the retaining nuts (made 3 imitations of the 1 original that came with the head), I made the spindle extension shaft a couple of years ago but finally today put a keyway in it and cut some flats to fit the 1" ring / open-ender that I use for the mill table lock.
Here it is all set up to cut 127 divisions.
and the rest of the gears
Going to have to make a riser for it to be able to cut the 127-tooth 12dp gear for the lathe though, the centre height of this dividing head is not high enough to take the 10.75" diameter of the blank.
Also, if I ever want to cut helicals I will have to come up with some kind of secondary drive setup, the spindle on the mill table where drive is taken off is a different diameter to the shafts on the dividing head, 1" vs 22mm. That's something for Future Pete to worry about.
I picked up a set of gears in 20dp, really a shade small for the job (I suspect the originals were probably somewhere around 16dp) but they will do the job. Had to bore the gears 22mm and cut 6mm internal keyways in them all on the shaper, make the retaining nuts (made 3 imitations of the 1 original that came with the head), I made the spindle extension shaft a couple of years ago but finally today put a keyway in it and cut some flats to fit the 1" ring / open-ender that I use for the mill table lock.
Here it is all set up to cut 127 divisions.
and the rest of the gears
Going to have to make a riser for it to be able to cut the 127-tooth 12dp gear for the lathe though, the centre height of this dividing head is not high enough to take the 10.75" diameter of the blank.
Also, if I ever want to cut helicals I will have to come up with some kind of secondary drive setup, the spindle on the mill table where drive is taken off is a different diameter to the shafts on the dividing head, 1" vs 22mm. That's something for Future Pete to worry about.
Lathe (n); a machine tool used in the production of milling machine components.
Milling Machine (n); a machine tool used in the production of lathe components.
Milling Machine (n); a machine tool used in the production of lathe components.