LinuxCNC S-Curve Accelerations

Very Good Grotius!
If you could just make a .deb file that installed the planner, you could host it here
packagecloud.io/

I had a version of the Ethercat hal driver there which the Linuxcnc ISO installer used until the etherlab guys started hosting it.

Hi Rod,

The packages up to 200mb can be uploaded to codeberg. No problem.
The scurve is 63mb, it will fit.

The thing is, i always use rip-installations. So my whole mindset is up to a git clone.
Before making a .deb for you all. I have to make a list where what to install.
As i understand your installation path is like /usr/local/ or /usr/
And also the lcnc source need to be recompiled. If files are spread around,
it will be hard to recompile the source.

But i have no oversight now. Maybe first unpack a linuxcnc .iso and look wherer the
files are stored.

It's also not easy to modify the lcnc original make file, because it will not accept .cpp files for compilation.
Otherwise i could just copy all in, and edit the original makefile, and done!

Rodw, what's your idea about this? I am still positive, no problem.

 

Looking at my chromebook with 2.10 installed from a .Deb, tpmod.so is installed in
/usr/lib/linuxcnc/modules

My thinking is that you could just deploy your new files in the right location in a stand alone deb.

But I think you also do more than just create a new tpmod version because you change some other files. I think that results in a new motmod.so
If that's the case, its loaded in the hal file so the modular approach of Linuxcnc still lets you keep it compartmentalised and add everything to the core Linuxcnc build just by adding some new folders under /src/emc

The trajectory planner is in
src/emc/tp
So if you made a new folder
src/emc/grotius-tp 
for your planner and included a Submakefile in that folder, you  just need to edit the main make file to include the new folder.
Here is the main tpmod makefile entry
github.com/LinuxCNC/linuxcnc/blob/master/src/Makefile#L1230

You could also use the same approach for changes to motion
github.com/LinuxCNC/linuxcnc/blob/master/src/Makefile#L1215

I suspect the Debian .deb build will include all .so files built, so it may not need changing.

I tested this methodology once by building a new module plasmatask because Andy thought that might be a good approach for plasma. I copied the  /src/emc/task folder to /src/emc/plasmatask and updated the main make file as I describe. Everything built perfectly and I could load plasmatask in the ini file no problems.

If you could do this, grotius-tp would be super simple to include in the main distribution.
 

Ooops, you also need to add grotius-tp  here too
github.com/LinuxCNC/linuxcnc/blob/master/src/Makefile#L1330

@Grotious

Installation by following your steps is not finished well probably ...

Which files to patch ?

with your script \

@Endian,

I am not ready with the .iso, but you can try this archive. Unpack it where you want.
Then : ./install.sh

I didn't test it on a fresh .iso so i can not confirm it works straight away.
After installing goto : ~/linuxcnc/cmake/configs and do : ./run_axis_9

At your own risk:
repository.qtpyvcp.com/repo/linux-distro/lcnc_archive.tar


 

Grotius wrote:

@Endian,

I am not ready with the .iso, but you can try this archive. Unpack it where you want.
Then : ./install.sh

I didn't test it on a fresh .iso so i can not confirm it works straight away.
After installing goto : ~/linuxcnc/cmake/configs and do : ./run_axis_9

At your own risk:
repository.qtpyvcp.com/repo/linux-distro/lcnc_archive.tar

 

I will check it in my virtual machine and let you know but the best path will be to wait for your iso file because of all the components and stuff around ...

 

Re the ISO in a hurry, you could fork the Bookworm branch of Linuxcnc's live-build which I have maintained
github.com/LinuxCNC/linuxcnc-live-build
Follow the instructions to install and run the builder after cloning

Append your build script to this file 
github.com/LinuxCNC/linuxcnc-live-build/...linuxcnc.hook.chroot
or add a seperate file starting with 520-
clone your repository into a folder under /tmp and you should be able to  build and install anything you need.

You would need to delete this file which installs Linuxcnc from the repository at Linuxcnc.org
github.com/LinuxCNC/linuxcnc-live-build/...-lists/linuxcnc.list

Add any additional dependencies to 
github.com/LinuxCNC/linuxcnc-live-build/...e-lists/desktop.list

You probably need to delete all 6 files containing Linuxcnc in the name as these are the apt settings
github.com/LinuxCNC/linuxcnc-live-build/...worm/config/archives
note preempt_rt is a dependency of linuxcnc-uspace so you will need to explicitly install it.

This will install the Ethercat repositories

You may wish to update some of these fields
github.com/LinuxCNC/linuxcnc-live-build/...bookworm/auto/config

Note that the Debian live build inherits the version of Debian you run this on. eg if you run this on Trixie, you will get a Trixie ISO

If you have any questions, just ask.