That may be the most expedient path. I would have to also get a suitable servo power supply and latching relays etc. Won't need full current since I'm only spinning flags and encoders. Having visual and audio confirmation of control events plus real hardware to attach a scope to does seem like the best way.
As to the Hurco conversion, I have the MESA cards, VFD's and most of the control panel items. ( new latching E-stop, hardwired remote pendant etc.) The delays have been work scheduling and weather as I have not finished moving the Hurco KM3. With all the rain the dirt roads leading to my property are a mud bog mess and I don't dare try to tow a machine on trailer through this with only a 2wd pickup truck. Sent via iPod On May 17, 2015, at 3:09 AM, andy pugh <[email protected]> wrote: > On 17 May 2015 at 00:52, Greg Bentzinger <[email protected]> wrote: >> Basically I would need a box to accept 3 axis +/- 10V inputs for velocity >> and output quadrature to make the control think its actually spinning the >> servos. > > Most of this sounds like a fun LinuxCNC project, the only fly in the > ointment being getting the +/- 10V into LinuxCNC. > > The LinuxCNC stepgen component can output quadrature pulses (also > look at sim_encoder, with which I am less familiar). > > So {wave of hands} -> velocity-mode stepgen -> wcomp limits + Vismach > model might be enough to fool the control into thinking that a machine > is attached. > > The reason I suggest LinuxCNC and Vismach for as much as possible is > that it is all easy to look at, and the Vismach model will show all > that is going on more clearly than looking at numbers. > > The simulator wlll be no help for tuning the control. > > So, the problem is one of getting +/- 10V into LinuxCNC. > > The quickest and easiest way to got +/-10V to quadrature might > actually be to buy three little servos and drives. You can always use > them for a cable tripod camera or something. > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
