On 29 Mar 2015, at 04:53, Scott Salrin wrote: > Thanks again for the words of encouragement the other day, guys. I've > been thinking, which has always been dangerous for me. I need to bounce my > thoughts off of some smart people, to set me straight. > > First let be beg forgiveness if this is inappropriate, or if I pull this > thread off topic... It seemed dead anyway. > > As I mentioned, I have not received the machine yet, so all of this is > theory at this point. The router is a Probotix Nebula, and will come ready > to make chips out of the crate, but I have a lot to learn in preparation > and trying to figure it out on my own is starting to hurt. I am having a > tool length switch installed and it will come configured with a tool > changing routine. The routine is called by a o100 command. I am also having > a 4th axis rotary installed. > > This is where I am confusing myself. I haven't purchased the cam yet, but > do believe it will be vectric aspire. This means the the rotary work will > have to be wrapped around I believe the x axis, in this case, at the post > processor.
I use Vectric VCarve Pro, which is of the same family as the more capable Aspire. I have done some wrapped rotary axis engraving, and I'm not entirely sure you have the right story here. I think (but am not 100% certain) that Aspire expects a 4th axis to be the rotary axis (i.e. not cable-swapping to temporarily substitute one of the other axes). Vectric have a very active and well-managed Forum for support. Questions are usually answered quickly and helpfully, so I suggest you ask this question directly, on the Forum. If my own impression is wrong, it is not difficult to output G code fro Aspire, then edit it using a simple diameter/length conversion factor to cause the G code commends for one axis (say X) to act s wrapped A axis code to control your 4th rotary axis. I've done that quite successfully in the past. I also suggest you specifically ask for a LinuxCNC post-processor whcih can cope with a wrapped 4th axis. Vectric originally didn't have a LinuxCNC post-processor at all, but wrote one for me when I requested it. I did have a conversation with them about a LinuxCNC post-processor which would output the correct A axis code when using their wrapped-axis "gadget". They said they were willing, but, for simple logistical reasons (coder was away in the USA at the time) they didn't get around to it in time, and I did my own thing with a conversion factor. It would be worth returning to that, if they haven't already done it. Marcus > I also want to use the makers guide featured in the attached > video, foe most of my work, and will need to pull off all the custom > buttons and code to make that happen. > > Am I correct in thinking that all the coding I'll need to do will be in > absolute co-ordinates, and not affected by the gcode that is wrapped around > the x axis. Like if I set the rotary to be say a G55 work co-ordinate, and > run a wrapped gcode file that has tool changes in it, when a tool change > routine is called the machine will go to the tool change position, wait for > me, do the routine and go back to G55 and start running the wrapped code > again? > > Or, is it going to sit there after the new tool length offset and spin the > A axis instead of travelling back the the work offset origin? > > Here is a link to the code Probotix uses: > http://www.probotix.com/wiki/index.php/Automatic_Tool_Length_Sensor > > I apologize for all the background, but don't know enough to know how much > info you might need, or if you get these "newbie" questions all the time. > > I do appreciate any time taken to help, > > Scott > > On Fri, Mar 27, 2015 at 4:55 PM, Gene Heskett <ghesk...@wdtv.com> wrote: > >> On Friday 27 March 2015 17:42:14 andy pugh wrote: >>> On 27 March 2015 at 21:35, Scott Salrin <scott.sal...@gmail.com> wrote: >>>> I just need to find a way to make it work in linuxcnc. >>> >>> It isn't magic. And you won't need any C. >> >> Yeah, if I can write the code to do that so can he. >> I do it in pieces, like I think theres a holefinder.ngc on my web page >> that can be edited to work with that jig. >> >> Probably a poor tutorial, but it works well enough for drilling pcb holes >> halfway thru the board, turning the board over and drilling it half way >> from the other side with the holes meeting in the middle w/o a visible >> offset. >> >> Applied offsets are TBD by the user though. Here its repeatable to under >> a thou variation. >> >> 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> >> >> >> ------------------------------------------------------------------------------ >> Dive into the World of Parallel Programming The Go Parallel Website, >> sponsored >> by Intel and developed in partnership with Slashdot Media, is your hub for >> all >> things parallel software development, from weekly thought leadership blogs >> to >> news, videos, case studies, tutorials and more. Take a look and join the >> conversation now. http://goparallel.sourceforge.net/ >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming The Go Parallel Website, sponsored > by Intel and developed in partnership with Slashdot Media, is your hub for all > things parallel software development, from weekly thought leadership blogs to > news, videos, case studies, tutorials and more. Take a look and join the > conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
