> - Servo motors yes, depending on what servo-interface you choose the drives can be controlled either with a -10..+10V analog voltage or with PWM+direction signals. Newer interfaces such as canbus or sercos are not supported afaik.
> - Fast movements (up to 16m/min, we are doing HSC) You must find a motherboard+cpu combination that has good real-time performance. I am running emc2 with a servo-thread rate of 4 kHz, during that 250 us your machine would move 0.07 mm at 16m/min if I calculate correctly... so intricate contouring etc. with a high tolerance will be challenging at this feed rate. It might be possible to go higher than 4 kHz, but I don't think many people have tried. There's also an issue with the speed at which the interpreter can process and output G-code lines, but others know more about this... > - Measurement of the surface for a Z-correction probing? > - Automatic tool change yes, but you will have to write either a HAL component or some classicladder to handle your specific toolchanger. > - Reliability (the machines are running 16 hours a day). should be ok if you find good hardware. > - Simulation with milling time estimation There's a g-code preview, but not any real cutting simulation. Writing a simple script in python to estimate the milling time would be straightforward. > - A hand-held control would be nice yes, fairly straightforward, a couple of commercial jog pendants exist if you don't want to build your own. > - We would prefer to use a bus like CANopen, Sercos or EtherCAT to > control the motors you will have to write and test the drivers for the PCI-cards that provide these communication formats. > - Spindle speed control yes, easy. > - SPC functionality what is this? hth, Anders ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
