Hi Andy, > From: Andy Pugh [mailto:bodge...@gmail.com] 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. The air cylinder to push on the spring washers now has to be moved out of the way. How tight is tight? I had thought of using a stepper motor and 100:1 planetary drive which are available for about $60. Pretty easy to engage air cylinder to push socket onto draw bar. Then turn 200 turns to unwind draw bar two turns. To tighten turn two rotations. The torque multiplier is more than enough to create the 12 to 18 inch lbs required. If I want to remove the collet then run it 12 rotations. I think even a 50:1 with 150 oz-in motor will work. And I have an extra stepgen available on the MESA. But I already have the butterfly wrench, air cylinder, electric valves, regulators etc. All but the mechanical hardware. For that I'm busy changing the 2D drawings into 3D Parametric so I can use LCNC to make them.
> > > On 19 Jul 2021, at 00:39, John Dammeyer < <mailto:jo...@autoartisans.com> > > jo...@autoartisans.com> wrote: > > > > case though is there a way to limit the distance the butterfly turns? > > Have you considered a disc spring setup instead? The one on my mill has > worked well. > > Otherwise: maybe you could have a plain section above the thread for the nut > to run in to, and then a cap to stop it all > disassembling. > You might want a spring to re-engage the nut with the thread. > > > > > > _______________________________________________ > Emc-users mailing list > <mailto:Emc-users@lists.sourceforge.net> Emc-users@lists.sourceforge.net > <https://lists.sourceforge.net/lists/listinfo/emc-users> > https://lists.sourceforge.net/lists/listinfo/emc-users
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