Baker’s Pin Trick Works!
I’ve solved the problem of getting the diameter of my baker’s pins to be consistent to within 1/16th of an inch across their entire length. Free-hand turning was only getting me to within a 1/16th and a "sizing tool" left too much tear-out. I could feel the 1/16th in difference with my hand, and for pastry, it was too much.
I came up with a method that gets the deviation to within one thousandth of an inch. More than consistent enough…
Just turn the baker’s pin to within a 1/16th free-hand, and then loosen the tool rest on the lathe (the longer the tool rest the better, I used a 12" rest). Now take some coarse sandpaper (60 grit) and wrap it over the leading edge of the tool rest and attach with some spring clamps so that the entire front edge is covered.
Now, with the lathe running at about 3000 rpm and the tool rest loose(not tightened at all) push the tool rest forward into the wooden pin until it makes FLAT contact across its whole length. Now slide the tool rest back-and-forth in a planing action until it is perfectly flat. Repeat until you see no light under a straight edge (with the lathe off!). Perfect!