OK the dogs got the bone and it's not letting go
Some thing I have been thinking about for a while, even got some bits but as I have more pressing matters I'll put this forward in case anyone else want's to run with it.
Take a say 6" wheel and present a tool directly to it horizontally and you get a flat face [ well nearly as there is a 3" radius to take into account.
Now do the same but say 1/2" above centre and you will get an angle of about 10 degrees. Many T&C grinder use this method to get clearance angles, some tilt the head and some raise or lower the wheel.
No right or wrong way just different ways to achieve the same thing.
Now take this horizontal head, fit a collet chuck to it and power it by a stepper driven indexer drive to get the 2,3, 4, divisions etc needed, that takes care of the indexing.
It also needs to be able to swivel at this point but can be manual.
The horizontal head needs to be on a ballscrew driven linear rail, again stepper driven and the wheel head needs to be able to move up and down, again by stepper.
Operation for a drill:
Spin the head to 135 degrees or what ever, fit drill to collet, line cutting edge up horizontal and present to the wheel, [ not running ] , on centre line.
Zero controller, back off say 0.200" and enter the drill program for that size from a library.
Wheel starts, head drops and presents drill to the wheel and grinds one secondary angle, backs off, raises head, feeds in drill to form primary angle, backs off rotates the collet 180 degrees and repeats.
End mills can he handles in roughly the same manner.
Asbestos suit on, let the flames commence...............................