On Thursday 11 September 2014 07:09:16 David Armstrong did opine And Gene did reply: > ok Guy's this has me at the moment > > i wish to switch a relay at a low speed set by the running gcode S > value ? ( say 500 rpm) > i had briefly thrown it at Andy via email and one of his suggestions > was remaping > i had a look at the wiki and the spinde remaping is TBD > > i had thought of monitoring the encoder or motion , but checking for a > speed , or if speed > etc , i can't see any particular similar code or idea > > has anyone done anything similar > i'd prefer to keep it in the hal if possible rather than remap , but if > thats a way then fine
In one of my lathe configs, all hal software, not 5i25, I have a couple instances of wcomp, one of which is watching the encoder velocity output, to run the staging of a pair of relays that control the loading for dynamic braking. I also have in that config, the ability to synthesize a stop signal for the turnaround stop when an m3/m4 or vice versa is done by the planner while running the G33.1 rigid tapping cycle. They do not detect the stopped condition, I used a one shot watching an encoder A phase for that. Complex indeed, but it worked well enough that I used it to peck tap several holes with it on a pure parport & cnc4pc BOB only setup. If you are interested in looking at my idiocy, David, I can PM it. Well organized its not. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
