[modeleng] Re: milling chuck

Hi Ron

That's why I am pleased that my milling machines use R8 collets, which are 
relatively cheap.   I also use R8 arbours with soft blank ends and bore 
these to size, with an Allen screw in the side, to engage a flat on the 
endmill - a free-hand ground flat will do.   These are also available 
complete in a series of bores.    I use ER25 collets on my little lathe, and 
have an R8 adapter for these.     By an unusual serendipity, my ancient 
horizontal milling machine also uses R8, so that I can use them on it and 
also on my VMC vertical mill.      They are much more secure than 2 or 3 MT, 
and far easier to eject..

Cheers!   Hubert

----- Original Message ----- 
From: "Ron Head" <ron.head@xxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Monday, December 29, 2008 7:53 PM
Subject: [modeleng] Re: milling chuck


> Hi Jem
> The beauty of Myford collets is that they don't need a chuck.  If your D-W 
> machine has been built 'to spec' it will have a Myford nose, in which case 
> all you need is a Myford closing ring (easy enough to pick up secondhand).
>
> Myford have recently started making the collets again.  They had them on 
> their stand at Ascot, but they're pretty pricey - around GBP22 each, I 
> seem to recall.  The last time I bought some secondhand ones they cost me 
> around GBP15 each.  They don't appear very often on the secondhand market, 
> and the dealers know it.
>
> Regards
> Ron
> 
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