I definitely have to stick with Machinekit as I'm running the machine with a Beaglebone. What is the nature of the changes made to LinuxCNC that allowed this to work? Do you think I could get this going on Machinekit?
On Thursday, April 12, 2018 at 8:28:29 AM UTC-6, Schooner wrote: > > > On 12/04/18 14:59, jo...@allwinedesigns.com <javascript:> wrote: > > Thanks for the advice! > > I started implementing this the other day and am running into follow > errors when switching between modes using a hal pin. > > > Yes I did predict that it would likely cause problems > > * "The actual instant of changeover could reek havoc if it occurred midway > through setting the joints say, so that would need to be catered for with a > function* > > > * that acted upon the changeover pin changing state, clearing old data and > establishing new defaults or whatever." *You might be able to get around > it by forcing the position_fb to whatever the actual position changes to, > perhaps by unlinking position_fb at the right point then re-linking, > with it set to the same as the actual position after the move. > > I found this thread on the LinuxCNC forums which discusses the same > desired behavior and the same errors I'm encountering. It seems like they > were able to resolve the issues, so I'll give what they tried a shot: > https://forum.linuxcnc.org/10-advanced-configuration/31813-tcp-5-axis-kinematics?limitstart=0 > > > We don't have the joints / axes work backported into Machinekit, it caused > a lot of problems in Linuxcnc initially, so interesting that it seems to > help this succeed. > > Hopefully it will work for you too. > > > On Thursday, April 12, 2018 at 2:48:29 AM UTC-6, Schooner wrote: >> >> >> On 12/04/18 09:29, 'schoo...@btinternet.com' via Machinekit wrote: >> >> >> >> This code snippet from my lathe pulley speed setting script shows the >> process to convert and use case / esac to switch the input to the correct >> call >> >> >> >> Just re-read and that gives the impression you need to use a case / esac >> switch >> >> All you need of course is a single call in place of the switch, as P >> contains the value to pass >> >> eg. halcmd setp combokins.state $int >> >> >> >> >> >> On 11/04/18 21:30, jo...@allwinedesigns.com wrote: >> >> Is there a way to switch between kinematics modules using G code in >> Machinekit? The desired effect is to be able to switch between trivkins and >> a 5 axis inverse kinematics module that allows for TCPC (Haas uses G234 to >> enable TCPC, see https://www.youtube.com/watch?v=HxPjH4v5iEg). I've >> implemented the 5 axis kinematics module for my machine. I was thinking I >> could incorporate the trivial kinematics into the same module and add a hal >> pin that would switch between the two. Then I could write a python script >> that flips the hal pin, and bind that to a custom G code. Would that work? >> Is there another way to do it? >> -- >> website: http://www.machinekit.io blog: http://blog.machinekit.io >> github: https://github.com/machinekit >> --- >> You received this message because you are subscribed to the Google Groups >> "Machinekit" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to machinekit+...@googlegroups.com. >> Visit this group at https://groups.google.com/group/machinekit. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> website: http://www.machinekit.io blog: http://blog.machinekit.io >> github: https://github.com/machinekit >> --- >> You received this message because you are subscribed to the Google Groups >> "Machinekit" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to machinekit+...@googlegroups.com. >> Visit this group at https://groups.google.com/group/machinekit. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- > website: http://www.machinekit.io blog: http://blog.machinekit.io github: > https://github.com/machinekit > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to machinekit+...@googlegroups.com <javascript:>. > Visit this group at https://groups.google.com/group/machinekit. > For more options, visit https://groups.google.com/d/optout. > > > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
