Hello! One of activities that I do for living is working in university. And one of the projects I am involved in is heating carbon composites with induction coil (yes, you can induce current in carbon fibers!) and in that project I have built a machine of coreXY layout that moves the induction coil and LinuxCNC is in charge of the controls on that machine. I have 2 students working on this project - one of them is exploring capabilities of "python interface" so that we can create a python program that would process external data, make decisions on required movements of induction coil and stream them to LinuxCNC. Another student (with some experience in coding) is working on finding out if jerk-limited trajectory planner can be implemented - that would help for the particular project and for other of my machines as well and I am sure that there are quite a few users that want it as well. There are several questions that have arised about existing code that I really hope that someone can understand (as I have very little experience in coding so am not sure about completely understanding let alone formulating correctly) and explain: 1) in this file: https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/ini/inihal.cc There are "old_inihal_data" and "new_inihal_data" used in the very beginning of this file. Can anyone explain what is happening there? My student is trying to understand how to add jerk parameter to the list of parameters that are read from INI file and passed on to trajectory planner. And that place looks as if some comparison is made but where do "old" values come from, assuming new ones are read from INI file? I gave him this link as it seems that Araisrobo did implement jerk-limited trajectory planner in machinekit quite a few years ago but I am not sure if that code can be copied directly as I have no idea how to test if it actually works: https://github.com/araisrobo/machinekit/blob/rpi2-spi/src/emc/tp/tp.c#L564
2) is Halcompile capable of installing the tp module after everything else is prepared or does it require rebuild from source each time changes are made? Viesturs _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
