Most of my "secrets" are in my document posted on this forum:
Turning Thin Spindles. I developed these techniques to turn wands for Harry Potter fans. Biggest trick is to start with one end of the wood VERY securely in the headstock using one of several methods.
The technique that makes a successful thin spindle is steadying the wood with one hand while turning with a sharp skew with the other. Skew is held in one hand, handle supported against my forearm, cutting tip sometimes supported by the thumb of the hand steadying the spindle. For those not comfortable with the skew it's really not that hard to learn, especially the way I teach it. The skew is the FIRST tool I put in a beginner's hand even if they've never seen a lathe before. I've never had one get a catch.
If skew expertise seems insurmountable, a sharp spindle roughing can work. (Except for detail I avoid the spindle gouge due to a reason I can explain lather if anyone cares.)
This document shows the tools and methods I use to hold, shape, and successfully finish a thin spindle. I wrote this update for a recent club demo.
As spindles get long and thin, there are challenges to turn them successfully. My demos use “magic” wands to show the techniques but they apply to many types of thin spindles. I always take some long examples, a couple of tapered shafts that go from about 1/2” diameter down to 1/16” diameter in more than 24” - one I turned from a piece of shelving pine board from Home Depot.
Some things covered here are about the wood itself and how to...
It seems like a challenging problem at first (some have reportedly resorted to shaping with coarse sandpaper!), but as my piano instructor liked to say "Everything's easy once you know how!" (Hey, completely OT - I stopped at the hospital today for some info and on the way out I noticed the piano in the lobby - it usually sits unused. In a couple of minutes I had an audience! No one threw tips...

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I've made an uncountable number of thin spindles using the methods described way, most of them "magic" wands but many other things as well. Good practice for finials.
There I describe the "left hand steady rest", the key for the way I turn almost all thin spindles. (I don't have nor have I ever used an actual steady rest - it's not needed would just get in the way for these types of projects.)
For the conductor batons, I use a bit of a different method - USUALLY turned in two parts, handle from heavier wood like Ebony or Cocobolo and the shaft from lighter color and lighter-weight wood using the methods of steadying described in the doc. The balance of a baton is important.
Some sellers of conductors batons use a wooden, plastic, or other handle and a fiberglass rod for the shaft - where is the fun in that?
I've made a bunch - most have been given away without photos but here are a few:
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I like to taper the end of the shaft so the joint at the handle is smooth. The one at the top is dogwood - made from a single piece of wood.
One hint - if making one for someone be sure to ask them for their preferences. Some like them about 10-12" long, some longer. Those who work often in dark orchestra pits want a little larger more visible shaft. The small one above is a "finger" baton. I've made sturdy "tap" batons for Jr High band directors to tap on the music stand to keep time. Made several for choral directors.
I never took the time to write a document but this my rough page of "notes to self".
The 1/2" MT collet is great for turning the handle but a chuck would do as well. The collet does give a bit of extra room for turning the end where chuck jaws might be more in the way. Other advantages of the collet is the work can be removed and remounted with perfect precision AND for the baton, it provides excellent support while finish turning the thin shaft.
View attachment 85995
At the bottom you might see I'm holding the shaft in pin jaws to shape, keep a "button" on the end for tailstock support with a 1/2" steb center, cut a tenon on the end sized exactly for the hole in the handle, cut off the holding button and reverse and glue the shaft into the handle, then turn taper and shape the shaft using the steadying techniques shown in the thin spindle document. I use a 1/2" skew to shape and taper the shaft.
Turn and saw off both ends, finish sanding and finishing by hand, and check the balance point!
One guy chose a different handle shape which turned out to be a little too heavy so we had to rig up something to adjust the handle while the baton was in one piece. Good clean fun!
JKJ