Small spindle head

**bambuko** · 17-12-2009

Today got a chance to try clocking the taper.
My idea was to use actual collets to set the angle - clearly an iffy idea because they are not solid, but worth a try before using something more complicated.

When preparing the spigot I made sure it's diameter was the top of the collet range - ie when using 9mm/8mm collet, the spigot was 9mm.

Also having clocked the largest collet, I than turned the spigot down and clocked smaller collet and checked whether the readings were the same for both:

I have managed to clock the taper to within +/-.0008 for both collets.
I don't know if this is good enough ... but I will try to go with it

**bambuko** · 24-12-2009

I have turned test piece, using topslide set as described and ...
It would have probably been good enough for most other jobs,
but I wasn't happy - I am blue all over :heehee: but the fit of the collets in the spindle is not up to my expectations

.
Mostly to do with the boring tool (stiff one was too big, and the next one I had, was too flexy). So need to make better one, just right for the job.
Also will try another/better method of setting the angle.