Does anyone have a working C program for homeing

[mac7988]

I tried multiple ways to home but with no luck. One of the codes that did work was very very slow when homing.

Please post a code where I can learn how to get it to work.

I have limit switches on both ends of the axis which I would like to use as home switch.

Also please help me point out how to adjust the speed.

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[TomKerekes]

Hi mack7988,

See the example SimpleHomeIndexFunctionTest.c

#include "KMotionDef.h"
#include "SimpleHomeIndexFunction.c" 

main()
{
    int result;


    // HOME Z

    result = SimpleHomeIndexFunction(2,  // axis number to home
        1000.0,  // speed to move toward home
        -1,      // direction to move toward home (+1 or -1)
        138,     // limit bit number to watch for
        0,	 // limit polarity to wait for (1 or 0)
        100.0,   // speed to move while searching for index
        -1,      // index bit number to watch for (use -1 for none)
        1, 	 // index polarity to wait for (1 or 0)
        5000);   // amount to move inside limits

    if (result==0)
    {
        printf("Home Z succeded\n");
    }
    else
    {
        printf("Home Z failed\n");
        return;
    }

    // HOME X

    result = SimpleHomeIndexFunction(0,  // axis number to home
        1000.0,  // speed to move toward home
        -1,      // direction to move toward home (+1 or -1)
        136,     // limit bit number to watch for
        0,	 // limit polarity to wait for (1 or 0)
        100.0,	 // speed to move while searching for index
        -1,	 // index bit number to watch for (use -1 for none)
        1, 	 // index polarity to wait for (1 or 0)
        5000);	 // amount to move inside limits

    if (result==0)
    {
        printf("Home X succeded\n");
    }
    else
    {
        printf("Home X failed\n");
        return;
    }

    // HOME Y

    result = SimpleHomeIndexFunction(1,  // axis number to home
        1000.0,  // speed to move toward home
        -1,      // direction to move toward home (+1 or -1)
        137, 	 // limit bit number to watch for
        0,	 // limit polarity to wait for (1 or 0)
        100.0,	 // speed to move while searching for index
        -1,	 // index bit number to watch for  (use -1 for none)
        1, 	 // index polarity to wait for (1 or 0)
        5000);	 // amount to move inside limits

    if (result==0)
    {
        printf("Home Y succeded\n");
    }
    else
    {
        printf("Home Y failed\n");
        return;
    }
}

Explain which parts you can understand.

HTH
Regards

[mac7988]

Hello Tom,

Thank you for the reply.

What I don't understand is where in homemach3.c


#include "KMotionDef.h"

//Plugin calls for Mach3 Home (actually Purge) Commands

main()
{
int flags = persist.UserData[5]; // Mach3 flags bit0=X, bit1=Y, Bit2=Z, etc...

printf("Mach3 Home Call, flags = %d\n",flags);

if (flags==1)
{
// do x homing here
}

if (flags==2)
{
// do y homing here
}

if (flags==4)
{
// do z homing here
}


printf("Done\n");
}
************************************************** **********************
Also where in the code does it save limit switch settings
and when finished homing it re enables limit switches.

[TomKerekes]

Hi mack7988,

Did you see my previous response? Please respond to it.

HomeMach3.c is an empty shell of a program that does nothing except print messages that show Mach3 is configured properly to request an axis to home.

Did you configure it? Do you get the messages on the Console Screen?

Regards

[mac7988]

Hi mack7988,

Did you see my previous response? Please respond to it.

HomeMach3.c is an empty shell of a program that does nothing except print messages that show Mach3 is configured properly to request an axis to home.

Did you configure it? Do you get the messages on the Console Screen?

Regards

I know its a empty shell but what is the proper way to put the simpleindexfunction into the code. I don't understand it well. I'm sorry for the confusion.

[TomKerekes]

Hi mack7988,

Please put more effort into your responses.

Were you able to change the parameters in SimpleHomeIndexFunctionTest.c and get it to work for your system by running it from the C Programs Screen in KMotion.exe ?

Regards

[mac7988]

Hi Tom,

I did change the parameters in SimpleHomeInderFunctionTest.c but I didn't test it in Kmotion.exe because I don't know how to use it. This is what I know

As you press REFALL in Mach3
There is a flagcall 4 2 1
which is handled by kflop to move each axis to the homing position.
The question I have is...How do I put simplehomeindex.c into the same c code as Homemach3.c?

[TomKerekes]

Hi mack7988,

To test your modified SimpleHomeIndexFunction.c push Save/Compile/Download/Run (button with all the arrows on it).

Does it home all 3 of your axes properly?

Regards