On Mon, 8/19/13, Jon Elson <el...@pico-systems.com> wrote: <shameless plug on> Well, one option is the Pico Systems Universal Stepper Controller. It can drive 4 axes of step/direction, optionally with encoders, and has 16 digital inputs and place to mount 8 solid state relays for lube and spindle control. (If you need more than 4 axes, you can add another board on the same parallel port.) Limit and home switches can be connected simply to the digital inputs. You can hook up a jog pendant, too. See <http://pico-systems.com/osc2.5/catalog/product_info.php?cPath=4&products_id=30> for more info. <shameless plug off> Can it handle using the linear encoders along with the rotary ones? I just like the idea of something directly sensing the position of the table and quill instead of relying solely on the inferred position using the rotary ones. 'Course it also has the single limit switches on each axis for hard limits to travel.
Nothing wrong with triple redundancy! :-) I've read the analysis of the failures with the Therac 25 and its reliance on only software to ensure nothing could go worng. Fortunately this machine won't be doing anything with high energy radiation... ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
