On 30 May 2013 21:00, Robert Shell <robert_sh...@hotmail.com> wrote: > I thought of having something generate the steps and I add encoders to the > machine but.. Heck if I can not generate the steps.. I am not even sure I can > read the pulses from the encoder fast enough...
How are you making steps with the Pi? Have you seen the RPi/LinuxCNC sample image here? http://soundproofingforum.co.uk/rpi_linuxcnc/raspberrypilinuxcnc.htm The easiest way to make very fast steps with LinuxCNC is probably one of the FPGA cards and a PC. A Mesa 7i43 connects to the parallel port and can output 24 step-dir channels at 10Mhz (both numbers are guesses, but not far off). Cost is $79 for the 7i43-P Pico also do a parallel-port connected FPGA step generator, it is rather more capable than the 7i43, (and easier to wire) but more expensive. There are PCI cards too, of you prefer. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ 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
