Doing that with hydraulics would be very, very expensive compared to an electric servo. You would need a constant pressure pump, accumulator, and a very expensive servo valve to get that kind of speed. Big $.
Dave Cole On 5/29/2013 12:18 PM, Leonardo Marsaglia wrote: > Yes, thinking it fast I assume that a 4 kw servo motor and ballscrew will > do it. Also there's the possibility of using the same hydraulic piston that > the machine has but with a servo valve and a linear way. I've seen that a > guy here on the list did that to a intetrior grinding machine and It worked > pretty well, but this is not the same kind of movement, he only used the Z > axis to make the plunge. > > > 2013/5/29 Les Newell<les.new...@fastmail.co.uk> > > >> I don't see any problems with that sort of spindle speed. The normal PID >> loops will maintain pretty good tolerance. If your X axis is heavy you >> will need a reasonably powerful motor to provide the acceleration. >> >> Les >> >> On 29/05/2013 13:36, Leonardo Marsaglia wrote: >> >>> About 120 RPM for the first tenths of milimeter, and then 50 rpm for the >>> last turns to finish it. This machine has no VFD, it uses a two speed >>> electric motor and I use it as it was originally. I can make it go >>> >> faster, >> >>> but approximately that's the velocity I use to make them based on the >>> diameters I use. >>> >>> >> >> >> ------------------------------------------------------------------------------ >> Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET >> Get 100% visibility into your production application - at no cost. >> Code-level diagnostics for performance bottlenecks with<2% overhead >> Download for free and get started troubleshooting in minutes. >> http://p.sf.net/sfu/appdyn_d2d_ap1 >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > > > ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
