At the moment the idea of recreating the spindle to be able to do BT30 just isn't in the cards. I can't even turn decent pulleys that have zero wobble. I'm not the best machinist I think. And then there's the cost of BT30 tooling.
In reality, AFAIK, the TT Tooling with 3/4" shaft into the R8 collet doesn't have the strength to hold a 3/4" chuck. It was really meant for smaller mills and I'm probably pushing it with the 2HP spindle. John > -----Original Message----- > From: andy pugh [mailto:[email protected]] > Sent: July-19-21 12:29 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Power Draw Bar > > On Mon, 19 Jul 2021 at 01:41, John Dammeyer <[email protected]> wrote: > > > The disk spring setup would be great if the only thing I used was TT > > Tooling. But if I remove the R8 3/4" flat top collet and insert > my 3/4" R8 drill chuck the springs seem like they'd be an issue. > > You might be able to convert the drill chuck to TTS shank, but > otherwise, yes, that becomes more difficult. > > My BT30 spindle uses pull studs, so the pneumatic drawbar can be > lifted out and a conventional drawbar can be used. This isn't as easy > with a TTS as releasing the tool does not release the drawbar and the > keyway stops you from just screwing the collet out from the bottom. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > � George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
