2 y axis steppers and linuxcnc

How do I get the Joints-Axis branch? Looking at the install document for Ubuntu ( www.linuxcnc.org/docs/ja/html/getting-st...ng_on_ubuntu_precise ) it is the same apt-get command as you use for the standard linuxcnc, shouldn't that be different for Joints-Axis?

- Matt

andypugh wrote:

Todd Zuercher wrote: A 5th way would be to install an experimental branch version of Linuxcnc called Joints-Axis, and use another kins called Gentrivkins. This has most of the advantages of Gantrykins, without many of the disadvantages.

Just as a point of information, Joints_Axes no longer includes gentrivkins or gantrykins, all the functionality of those kinematics is included in a modified trivkins.

The documentation for the Joints_Axes branch is now available at www.linuxcnc.org/docs/ja

The specific change relating to kinematics is described here:
www.linuxcnc.org/docs/ja/html/getting-st...#_kinematics_modules

There is also the "Gantry" component for that use. ( linuxcnc.org/docs/2.7/html/man/man9/gantry.9.html )
I have it working with two Y steppers quite nicely. There's a sample HAL file here:
forum.linuxcnc.org/forum/47-hal-examples...8-gantry-hal-example

It was (for me) a good way to get in to how HAL syntax works. Give it a shot

/Peter

mjohnsonsa wrote: How do I get the Joints-Axis branch? Looking at the install document for Ubuntu ( www.linuxcnc.org/docs/ja/html/getting-st...ng_on_ubuntu_precise ) it is the same apt-get command as you use for the standard linuxcnc, shouldn't that be different for Joints-Axis?

Yes, those are docs from an unreleased branch written to be correct as and when the branch is released (you will note that there is no direct link to them from anywhere else).

If you look at the bottom of buildbot.linuxcnc.org/ you will see a "scratch" section. If you add that to apt / synaptic then you wil have to option to install any of many experimental branches. As of last night we are up to JA14.