Yes... Doing that is very common on small machines.
Dave On 7/15/2014 5:26 PM, a k wrote: > to be sure --HOME_SEQUENCE 0|1|2|3 > ----0|1|2|3----- this set sequence for axis? > like 0-x first, 1-y second etc? > > > On Tue, Jul 15, 2014 at 2:16 PM, Gene Heskett <[email protected]> wrote: > >> On Tuesday 15 July 2014 15:38:42 a k did opine >> And Gene did reply: >>> about code >>> from hal >>> >>> >>> net home-switch <= hm2_[HOSTMOT2](BOARD).0.gpio.025.in_not >>> net home-switch => axis.0.home-sw-in >>> net home-switch => axis.1.home-sw-in >>> net home-switch => axis.2.home-sw-in >>> ///////////////////////////////////// >>> interesting explanation about pin connection >>> ---- >>> >>> each of the three axes have their own home switch. All >>> # home switches are connected to GPIO 25, though hostmot2 boards >>> generally # have enough GPIO pins to put each axis' home switch on its >>> own pin. //////////////////////// >>> how it can work ---- All home switches are connected to GPIO 25??? >> Either all switches are wired n.c. and in series, or all wired n.o. and in >> parallel. lcnc contains logic that will not move anything if any of the >> switches is already tripped when you hit ctrl+home. You must have the >> statement in the .ini file for each axis HOME_IS_SHARED = true, and >> HOME_SEQUENCE 0|1|2|3 (one of each sets the homing sequence starting with >> 0) which brings that logic into play. >> >>> On Tue, Jul 15, 2014 at 7:50 AM, Gene Heskett <[email protected]> wrote: >>>> On Tuesday 15 July 2014 10:03:52 Ed Nisley did opine >>>> >>>> And Gene did reply: >>>>>> I M does not shows any working sample >>>>> Here's how I did it for my little Sherline mill... >>>>> >>>>> Modify the Sherline control box to accept the wiring. This is an >>>>> example for the tool length probe line, but the same thing happened >>>>> for the home switch input: >>>>> >>>>> http://softsolder.com/2010/04/11/sherline-tool-length-probe-adding- >>>>> a-ja ck/ >>>>> >>>>> Connect the physical home switches to the parallel port pin and >>>>> define the HAL "wiring" that connects the input pin to the homing >>>>> signals: >>>>> >>>>> http://softsolder.com/2010/05/11/sherline-cnc-mill-adding-home-swit >>>>> ches / >>>>> >>>>> Define the homing parameters that control the motion on all three >>>>> axes: >>>>> >>>>> http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-sw >>>>> itch es/ >>>>> >>>>> That configuration worked back in the 2.4 days and has continued to >>>>> work fine ever since, so it should get you reasonably close to your >>>>> goal. >>>>> >>>>> Hope that helps ... >>>> It gets more complex than that Ed, he is using Mesa cards where the >>>> GPIO port pin number isn't generally the number you use in the hal >>>> file for a parport number. I needed a spindle run/brake signal on >>>> the db25's pin 17, but had to consult the dmesg output to determine >>>> the actual address of that pin for a 5i25 interface card. He is >>>> using a 5i20 + 2 daughter cards I know nothing about. I am still >>>> configuring things as I'm just now bringing it (the 5i25) to life. >>>> >>>> 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 fast and easy access to all the code in your >>>> enterprise? Index and search up to 200,000 lines of code with a free >>>> copy of Black Duck Code Sight - the same software that powers the >>>> world's largest code search on Ohloh, the Black Duck Open Hub! Try >>>> it now. >>>> http://p.sf.net/sfu/bds >>>> _______________________________________________ >>>> Emc-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> ----------------------------------------------------------------------- >>> ------- Want fast and easy access to all the code in your enterprise? >>> Index and search up to 200,000 lines of code with a free copy of Black >>> Duck Code Sight - the same software that powers the world's largest >>> code search on Ohloh, the Black Duck Open Hub! Try it now. >>> http://p.sf.net/sfu/bds >>> _______________________________________________ >>> Emc-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> 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 fast and easy access to all the code in your enterprise? Index and >> search up to 200,000 lines of code with a free copy of Black Duck >> Code Sight - the same software that powers the world's largest code >> search on Ohloh, the Black Duck Open Hub! Try it now. >> http://p.sf.net/sfu/bds >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
