Gantry

I am in middle of a XYYZABC machine. It may require another C after trial run is made. Board=7i92+7i76+7i78+7i84

I have physically connected Y (joint 1) to stepgen1 of 7i76 and Y(joint 4) to stepgen4 of 7i76.

With PNC config, XYZA configuration is made. HAL and INI attached.

As per my understanding of GANTRY component, Y motion command to be attached to stepgen1 and stepgen4 and both joint will perform similarly except when homing and there will be no joint mode (only world mode) in Gmoccapy. Am I right?

And in actual, I got confused. Which pin to be connected to whom, motion and limit and home?

No.
Use PncConf, create a new config, set the Y axis for stepgen 1, then set stepgen 4 as Axis>Tandem Axis>Y2 Tandem Stepgen

ok.

But then what is the use of gantry component, request for explanation for my understanding at least.

Not positive but I think 'gantry.comp' is an outdated solution (2014) to drive multiple joints which was necessary before joints/axes were separated in Linuxcnc Version 2.8+.

Indeed, the gantry.comp should not be used on new configurations, the correct behaviour is now built-in to LinuxCNC.

Could someone please remove this module and the gantrykins module as well in the man pages? They are really Really confusing!
 

github.com/LinuxCNC/linuxcnc/commit/9783...cfdb5ea02cd0336145e6