013/10/1 Sven Wesley <[email protected]> > > 2013/10/1 andy pugh <[email protected]> > >> On 1 October 2013 07:59, Sven Wesley <[email protected]> wrote: >> >> > Ah, but of course! >> > This is a machine with a gearbox, switching gear at 580 RPM, I think I >> need >> > to get rid of the motor and make a direct drive to be able to do what I >> > want to do (tapping). >> >> Well, the fact that the cooling fan is on a separate motor does mean >> that the end of the main motor shaft is probably clear, and an encoder >> could be fitted. >> >> However, if there is a gearbox then it probably makes sense to use one >> of the gearbox gears and a tooth sensor. >> >> This is how Jon did it: >> http://www.pico-systems.com/bridge_spindle.html >> >> And this is how I did it: >> >> http://www.cnczone.com/forums/vertical_mill_lathe_project_log/109301-harrison_universal_miller_conversion-2.html#post1212335 >> >> > Thanks Andy. I think there's too much play for rigid tapping with the > gearbox, or do you rigid tap with your Harrison? > There is a Maho retrofit with a controlled gearbox, that is one option. > The other option is to get another spindle with belt drive or another motor > get rid of the gearbox. > http://www.youtube.com/watch?v=E0rVbVixMw8 > > /S >
Oh BTW, the gearbox is hydraulically controlled, so it shouldn't be too hard to figure out how to control the gearbox with the Mesa cards. ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
