Mach3 slave axis not homing

[vdc-fx]

If you have slaved axes on your gantry, in Mach3 v3.x VB Programmers Reference Manual you will find the following:



Also, from CNC Zone:

"Art wrote....
> Common problem. When you home , the slaving is disabled till the home is
> done. This is done to auto-square the gantry of such a system, thats why
> the
> lack of slaving when you stop the homing.. The solution is to make the
> homing go in the correct order. This is done by modifying the Homing
> button.. If you open the 1024.set file in the screen designer and double
> click the "Ref All-Home" button, you will see the code is
>
> DoButton( 24 )
> DoButton( 23 )
> DoButton( 22 )
> DoButton( 25 )
>
> This basically calls the Z, then X then Y and A homes. This needs to be
> changed to ..
>
> DoButton( 24 ) ' this homes the Z
> DoButton( 23) ' this homes the Y
> RefCombination( 9 ) ' this will home the X and A at the same time.
>
> RefCombination accepts a number where X = 1 , Y = 2, Z = 4, A = 8, you
> simply add the values of the axis
> you wish to home, so X + A = 9..
>
> The squaring will be automatic and can be adjusted by your settings for
> the home position of the switches..
> Thanks,
> Art
> www.artofcnc.ca

Art also wrote this... and I found the complete "Refcombination" listing here....

"Art wrote.... The home switches, (which may be set to the same input as the limit
switches), are used only for homing. The axis will move to the switch, then
slowly move off.

The program by default does one at a time, because thats the most usual
combination. YOu CAN move any combination at once by editing the RefAll
buttons script. There is a command called RefCombination( n ) which will ref
any combination of the axi s. N is calcuated by adding the following
numbers..

X - 1
Y - 2
Z - 4
A - 8
B - 16
C - 32

Ref X and Y together would be RefCombination( 3 )

Hope this Help

Thanks

This is what I tried
In Mach 3 select Operator Tab.
On Drop Down menu select - Edit Button Script
Then Press REF ALL HOME button

Editor pops up with the following 4 lines of code.

DoButton(24)
DoButton(23)
DoButton(22)
DoButton(25)

Delete the lines DoButton(23) and (25)

Enter following on new line

RefCombination(10)

Select File -- Then Save.( from another Forum)

Disabled Homing with master in the general config.

But still no joy, Homes the Z Then X.
Homes Y and A, but stops on y home switch and waits for A switch, but A does not move. Have to reset the system to get things moving again.

This is not a deal breaker, just the machine I have built is very big. 3.3 meter by 2 meter.
hard stops are not an option because closed loop steppers fault out when they cant move.

I will keep looking for an alternate solution.
You input is greatly appreciated..

[julius pakstys]

Hi. Did you find the solution?