On 2014-07-25 20:07, Peter C. Wallace wrote: > On Fri, 25 Jul 2014, Marius Liebenberg wrote: > >> Date: Fri, 25 Jul 2014 20:02:53 +0200 >> From: Marius Liebenberg <mar...@mastercut.co.za> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> To: emc-users@lists.sourceforge.net >> Subject: Re: [Emc-users] Stepper driven A axis with servos >> >> Peter >> Please give some more info on this please. >> >> I tried the setup today on the machine. I loaded a stepgen but had to >> load it into the servo thread. I thought that was way to slow at 1us. >> Then tried to load another thread but got and error that said it was not >> permitted. >> Apart form having power supply problems I could see pulses coming from >> the parport on halscope. It al seemed very sluggish though. >> >> Any suggestions on getting stepgen to run in a faster thread? > If you are using a parallel port for software generated steps you will need a > fast base thread (just look at a standard parallel port config for thread > setup etc) > > Another option is to use 5I25 hardware stepgens on P2 so you only need one 1 > KHz thread Peter The setup uses a 5i23, the big card and two H-bridge, 5i28 I think. We have an ?i37 I/O on that as well. Then the vanilla flavour bob is connect to the parport. I could not load a base thread after the hostmot2 was loaded so I had to load the software stepgen into the servo thread. > > >> >> On 2014-07-24 21:23, Peter C. Wallace wrote: >>> On Thu, 24 Jul 2014, andy pugh wrote: >>> >>>> Date: Thu, 24 Jul 2014 20:17:04 +0100 >>>> From: andy pugh <bodge...@gmail.com> >>>> Reply-To: "Enhanced Machine Controller (EMC)" >>>> <emc-users@lists.sourceforge.net> >>>> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >>>> Subject: Re: [Emc-users] Stepper driven A axis with servos >>>> >>>> On 24 July 2014 20:12, Marius Liebenberg <mar...@mastercut.co.za> wrote: >>>> >>>>> I am going to put the stepper on the parport with a cheap bob. The rest >>>>> is 5i23 with 7i77. >>>> Do you mean 5i25? >>>> >>>> Rather than use a real parport, put a parport breakout on the 5i25 >>>> internal header and run the BoB using a 7i77 / 7i76 firmware and you >>>> get Mesa stepgens. >>>> >>>> >>>> -- >>>> atp >>>> If you can't fix it, you don't own it. >>>> http://www.ifixit.com/Manifesto >>> Theres also BOB compatible firmware fo a couple of BOB flavors >>> >>> >>> (and you can run a 7I76/77 from a 5I23/5I20 but it needs a cable adapter) >>> >>>> ------------------------------------------------------------------------------ >>>> 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 >>>> Emc-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> >>> Peter Wallace >>> Mesa Electronics >>> >>> (\__/) >>> (='.'=) This is Bunny. Copy and paste bunny into your >>> (")_(") signature to help him gain world domination. >>> >>> >>> ------------------------------------------------------------------------------ >>> 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 >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> -- >> >> Regards /Groete >> >> Marius D. Liebenberg >> +27 82 698 3251 >> +27 12 743 6064 >> QQ 1767394877 >> >> >> ------------------------------------------------------------------------------ >> 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 >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > Peter Wallace > Mesa Electronics > > (\__/) > (='.'=) This is Bunny. Copy and paste bunny into your > (")_(") signature to help him gain world domination. > > > ------------------------------------------------------------------------------ > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users >
-- Regards /Groete Marius D. Liebenberg +27 82 698 3251 +27 12 743 6064 QQ 1767394877 ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
