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My dividing head, however, came with a dead center and a sort of "dog plate" for between-centers use. There was no way to use
an actual dog, so I rummaged through the scrap bin, found a short chunk of heavy angle-iron, and with a few deft cuts and a run through
both the other mill and drill press, had a suitable driver. Since I needed 30 splines (I counted them at least twice) according to the
book I could use the 18, 33 or 39-hole selections. I already had the indexing plate with the 33-hole ring installed so I used that one. 

That required, in the book's parlance, 1-11/33rd turns. That is, one and one-third turns, or 11 of the 33 holes.The indexer has
a pair of movable arms... Hm, I suppose I should have taken a photo of that... called a quadrant. You move these in order to
help keep track of fractional turns- they simply serve as markers as you turn the crank handle. 

That's a highly simplified description, of course- the book has a couple of chapters devoted to it- but in effect,
I needed to mill a spline, crank the handle one-and-a-third turns, mill another spline, lather, rinse, repeat. 





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Information contained in these pages is for reference and entertainment purposes only.  Our methods are not always the best,
quickest, safest, or even the correct ones. It's up to you to know how to use your own machines and tools.
Keep your fingers away from the spinny blades o' death and you should be all right.