Beginner kinemetrics setup for linear delta?

andyhol wrote:

But I have found some files in the past and was unable to determine what to do with the files, some help with this would be greatly appreciated.

Sorry, I am afraid we got a bit carried away in minutiae.

Lineardeltakins is already part of a special version of LinuxCNC called Joints_Axes12. It is an experimental development version that sorts out some very troublesome assumptions made early on in LinuxCNC development. There is an assumption in "normal" LinuxCNC that you have one motor/actuator for each valid axis word in the G-code. For any machine with non-cartesian kinematics that is a bad assumption.

I would very much advise that for your machine you should consider using that version.

Doing so is slightly harder than running the "normal" LinuxCNC. But I think it is worth it for your machine.

There are two ways to do it, either install git, download LinuxCNC and build from source (not _that_ hard, and we can help) which gives you a version of the source code so that you can make changes and improvements.

Or you can install a pre-compiled package. There are .deb files here:
buildbot.linuxcnc.org/dists/precise/scratch-rt/binary-i386/

You would want the latest joints_axes12......deb file, then install it on top of a working LinuxCNC installation with sudo dpkg -i deb-file-name.deb
Note that that link is for Debian Ubuntu Precise. If you navigate back up the tree you will find scratch directories containing JA debs for other Linux distributions.

(Warning, you have fallen in with bad company, bot Dewey and I are Joint_Axes evangelists and want to see the improvements in the normal installation)

If you install that version then you will find a complete working demonstration linear delta configuration that you can customise to suit your machine. And the machine will work rather better in a JA version.

Having just experimented, the easiest way to get Joints-Axes is to edit the repository name in a standard installation.
I just tried it, and it appears to work:

I changed to scratch-rt as described here: buildbot.linuxcnc.org
But rather than edit the sources file, I did it in the GUI.

And after a few minutes, a demo linear delta machine config, with a Vismach simulation:




This is the "ldelta_demo" where the various HAL pins are connected to on-screen GUI elements.
There is another config where the connections are left for connecting to actual hardware instead.

andyhol wrote:

It looks like I am loaded with lucid, do I need to upgrade or just load the lucid scratch-rt files

To keep things simple, use the lucid scratch-rt version. One thing at a time is probably wise , rather than new OS and new LinuxCNC version at the same time.