Donnie, I did a very similar retrofit on my Hurco KM3, which is a factory servo and ball-screw equipped knee mill. I used a 5I20 in a SFF HP with a 7I33 for the servo interface. I cabled the remaining two 5I20 ports to Opto22 racks for general machine I/O and to a PMDX-106 to control a VFD on the spindle. I kept the original motors and servo amp chassis. The machine runs well and I have no problem web surfing or editing G-code on the console while it runs.
If you already have the 5I23 I wouldn't mess around with the 7I43 USB/EPP card, which would need a 7I33 for the servos anyway. I haven't been keeping up with firmware developments for these cards for EMC2 but I would expect you would get better performance from the FPGA and PCI bridge on the 5I2x than from an EPP port. Hopefully someone who has tested both will comment. I picked a SFF PC that would fit in the control cabinet where the original Multibus card cage was located. I made a tilt-out mount for the PC that allows access to everything in and behind the PC without disconnecting any cables. The model is an HP D530 with a 2.66GHz P4. A key feature is that it has a riser card that accepts two full-height PCI cards sideways rather than four half-height cards in the normal vertical orientation. I think there was a SFF Dell with a similar arrangement. I did have to find a Matrox half-height video card that would work with RT Linux. The first one I tried was an nVidia whose drivers did not play well with others (including the open-source drivers, which worked fine under Linux, but not *RT* Linux). What model is your Hurco? Chris On Sun, Nov 1, 2009 at 12:50 AM, Donnie Timmons <[email protected]> wrote: > I replaced the controller in my hurco with a 5i23 (witch is way over kill > should have went the 5i20)when I finished up the dell gx260 would not fit in > the cabinet. So I bought a gs260 SFF pc only to find that the PCI slot is > half height and the 5i23 would not fit into the case. So at this point I > hack the pc up and mount it in the cabinet or replace the 5i23 with a 7i43. > How well would the 7i43 handle a servo system? > > Donnie ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
