Re: Bridgeport Series I verse Series II CNC Refit Candidates

Les, this is also true of the kwik switch tooling. The tool holders
have two tabs/ears sticking out and a spring loaded threaded coolar
on the spindle. When you push the holder in, the collar is released
and the spring tightens it, pushing the ears and the tool holder into
the spindle taper.

I have heard, and seen, the Universal kwik switch 200 and 300 series
tool hoders referred to as 20 and 30 series. I even had some that
were marked that way. Maybe they changed to 200 / 300 to avoid
confusion with the 30 international taper.

~petev

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Les Newell <lesnewell@h...>
wrote:

>
> I think I have found the source of confusion. It appears the

Series1 CNC

> was available with two tapers. Either Kwik Switch (200?) or 30
> international. Unusually the 30 taper tooling does not use a

drawbar.

> Instead there is a threaded collar on the spindle nose that locates

on

> the flange and pushes the taper into it's socket. This makes tool
> changing very quick.
>
> Les
>
> Polaraligned wrote:
>
> >Not a UK thing. My series 1 CNC has 30 taper also, as do many
> >others that I see.
> >
> >Scott
> >
> >
> >
>