Linuxcnc 2.8.4 does not show tandem items.

JT wrote:

aparecido wrote:

JT wrote:

I have LinuxCNC 2.9.2 here and have never seen anything called "tandem items" in the Stepconf tool.JT Hi JT, how are you? Here in mine, I made a short video showing it, attached to the post.
 

 
Hi JT, how are you? Here on my 2.9.2 it appears, I made a short video showing it, attached to the post.
 

Hmm, I can't seem to open a .rar file here perhaps a screen shot?

JT
 

Of course, I attached two prints...

JT wrote:

I see that now, thanks for clarifying that for me... looks like someone has been working on the Stepconf tool.

JT
 

 

Yes, from what I understand by looking at the posts here on the forum, these options were first found in Pnfconf and then went to Stepconf as well.
 Here on the forum there are some topics about an ethernet card with ESP32 that is being tested/developed in open source to be able to use linuxcnc on PCs that no longer have a parallel port, suddenly in future Stepconf updates, they end up including the Esp32 option when all has already been developed/tested and published in the topic, it would also be of great help.

JT wrote:

Looks like Phil added tandem joints about 3 years ago to the 2.9 branch.
github.com/LinuxCNC/linuxcnc/commit/f213...27a402ba6ec66ea54dfc

JT
 

Hmmm interesting, so if I didn't understand it wrong, the 'tandem function' is only really implemented in stepconf and in the files generated by it from version 2.9.* onwards....

Well, as there is no way to update the Linuxcnc version, is there any other way to manually configure the INI and Hal to square the gantry using two motors and two sensors on the same axis?

JT wrote:

aparecido wrote:

Well, as there is no way to update the Linuxcnc version, is there any other way to manually configure the INI and Hal to square the gantry using two motors and two sensors on the same axis?
 
Yes, you just need to set the home sequence to a negative number.
linuxcnc.org/docs/stable/html/config/ini...l#sec:homing-section

JT
 

 I found a post by Rodw here on the forum where he says he has been using the sequence for a few years without any problems:

Joint_0 (x) - 1
Joint_1 (x2) - 1
Joint_2 (y) - 1
Joint_3 (z) - 0