INI/HAL configuration questions

When I originally setup my hal with PNCConf I was planning to only use the limits/home switches on one of the Y joints (Y2 - Joint 2). But now I have added just a Home switch on the other Y joint (Joint 1) so that I can use it to auto square the machine.
You can see that I rearranged the pins to the following to make it easier:
pin 05 = X (Joint 0) - 2 limit switches (Both-Home)
pin 06 = Y (Joint 1) - 1 limit switch (Home)
pin 07 = Y2 (Joint 2) - 2 limit switches (Both-Home)
pin 08 = Z (Joint 3) - 2 limit switches (Both-Home)

 

My question is in the following image.

 

Thanks
        


    
    

 

So just to clarify, I only need to include the Home reference (net home-y => joint.1.home-sw-in) for the Y joint (joint 1) that only has one limit switch (Home)? I do not need to include the pos/neg limit switch reference because that will be handled by the Y2 joint (joint 2)? see example.

#*******************
# AXIS Y JOINT 1
#*******************

# ---setup home / limit switch signals---
net home-y => joint.1.home-sw-in


#*******************
# Tandem AXIS Y2 JOINT 2
#*******************

# ---setup home / limit switch signals---
net both-home-y2 => joint.2.home-sw-in
net both-home-y2 => joint.2.neg-lim-sw-in
net both-home-y2 => joint.2.pos-lim-sw-in

BTW, the net naming came from PNCConf. I have not made any changes to the naming yet.

Thanks

So I completed my ini/hal files and ran into a bunch of small issues trying to Home All. I was able to work through them all except I am stuck one last issue before I can get it all my axes homed and switched to World mode.

I got Z and X homed and ended up having to reverse the motor direction for both Y joints for some reason. I did this by changing the STEP_SCALE in the INI file for both joints to a negative. Then I was able to get the Y axis (both joints) to moved in the correct direction (-). When Y1 hit its home switch it stopped BUT when Y2 hit its home/limit switch it did not stop. I looked over the files many times very carefully and I cannot seem to figure out why.

Can someone take a look at my files and see if they can find where the problem is?

 
 

This question is not related to the racking issue (at least I do not think it is) I just posted. It is related to the previous question. The settings I posted previously do not look right to me now. In this section there is nothing telling the Y1 joint to stop at the other end (+) of the Y axis. It only has a home switch at the (-) end. Doesn't it need a signal to tell that motor to stop when the other motor (Y2) stops?
Would something like this work (in red)? :

#*******************
# AXIS Y JOINT 1
#*******************

# ---setup home / limit switch signals---
net home-y1 => joint.1.home-sw-in
net y1-pos-limit => joint.2.pos-lim-sw-in

#*******************
# Tandem AXIS Y2 JOINT 2
#*******************

# ---setup home / limit switch signals---
net both-home-y2 => joint.2.home-sw-in
net both-home-y2 => joint.2.neg-lim-sw-in
net both-home-y2 => joint.2.pos-lim-sw-in

I would look at your inputs in halshow and make sure they actually change state when they hit the home switch.
Then make sure they are connected to jont.N.home-sw-in
Home switches must remain  triggered until the end of travel
Max limit switches can be used but if properly homed the soft limits in your ini file will be respected.

I checked in halshow and they do change state when triggered. And it appears to be connected correctly.

I will have tear into it again tomorrow.

Are the inputs connected to jont.N.home-sw-in and does it also change state?
If so, walk away for a day or two, and carefullt re-read homing configuration docs again. Be sure you are reading the docs for your version of linuxcnc...

rodw wrote:

Are the inputs connected to jont.N.home-sw-in and does it also change state?
If so, walk away for a day or two, and carefullt re-read homing configuration docs again. Be sure you are reading the docs for your version of linuxcnc...
 

I have checked every setting I can think of and it all looks correct to me.
Here you will see the Y2 changes state when I engage the switch.
 

Here is the X switch engaged. The X joint homed correctly.
 

In the attached HAL file ( this post ) you will see that "both-home-y2" is connected to pin 07 on the Mesa board. I also verified the wires in the cabinet to be sure.
 

You can also see that "both-home-y2" is connected to "joint.2.home-sw-in". It is setup exactly the same as the X & Z joints and they both home correctly. 
 

Does anything stand out? Copies of my INI/HAL files are in this post .

I have read through the homing configuration docs for LCNC 2.9 many times and nothing looks incorrect. 

Thanks