Beall Collet Chuck for Sherline

[Aaron_W]

Thank you! It is really useful to know about this Taig adapter option.

I am planning to get a second headstock for Sherline, to be used with (a vertical column and in future) a mill; it is not pleasant to move the one I have back and forth. But I am leaning towards their ER-16 headstock. (Any advice on that choice?)

If you could tell how accurate the adapter is, I'd really appreciate it.

FWIW I bought a set of Technik collets already (was on sale) and also one of their "DIN" collets and nut. The latter promises a very low runout, don't recall exactly but maybe something like 2 thou a.k.a. 5um. That is, presumably, in addition to the spindle runout.

I just have the standard 3/4"-16 spindle on my lathe and mill. The biggest drawback to me with the ER16 spindle would be the loss of ability to use the standard 3/4"-16 tooling without an adaptor. I think that would be less of an issue with a mill, and as you already have a 3/4"-16 head for your lathe, having both you could always swap them as needed.

I happen to like threaded spindles. I get that they have some drawbacks, but I think the simplicity of threaded spindles is often overlooked, particularly when talking about machines for hobby work.

I have some Techniks ER32 collets for holding endmills in my mill, but I only use ER16 on the lathe for work holding. I just bought a cheep ebay set of ER16 collets to use with the adaptor. I haven't put an indicator on my ER16 adaptor / collets, but have had no trouble working to 0.001" which is as accurate as I've needed to be.

 

[ppod-]

Thank you Aaron.

P.S. I had a typo above. This fancy variation of Techniks collets is called "DNA" not DIN and the 5um TIR they promise is 0.2 thou not 2 thou.

 

[fsts2k]

I grabbed the Taig Collet adaptor/chuck + a set of Techniks collets... success! Accomplished what I wanted to do (made new bronze banjo bolt). Thank you for the advice!