Lagun Knee Mill Retrofit

[Need TECH Help!]

Hi Tom,
Been adjusting V,A and J using your link to article, everything appears nice and smooth so far in Kmotion, havent setup KmotionCNC planner yet. Right now iam working on my INIT program.
Currently trying to add external buttons control to the code. I copied some debounce code from another working INIT program from another mill i built. This is code you helped/did for me. I am getting a compile error..."c:229: initializer element is not constant" at the first line of my CycleStart button portion of code. Obviously dont understand what iam missing. Can you take a look at it? I still have a few more button and switches to add also.
Attached is INIT file.
Thanks in advance,
Troy

[Need TECH Help!]

Not sure if this is correct but i dont get any errors when compiling .
I changed directions of a bracket that is at begining of code for FeedHold button.....

{ //Changed bracket from this "}" to this "{"


// Handle FeedHold/Resume
result = Debounce(ReadBit(FEEDHOLDBIT),&fcount,&flast,&flas tsolid);
if (result == 1)
{
if (CS0_StoppingState == 0)
StopCoordinatedMotion();
else
ResumeCoordinatedMotion();
}

[TomKerekes]

Hi Troy,

Yes curly brackets are very critical in C Programming. The concept is very simple. They go in pairs much like parenthesis or begin-end statements. For example:

{
    {
    }
    {
    }
}

Good C Programmers indent the code with spaces or tabs so it is obvious that the brackets are paired up.

Something like this is obviously wrong

{
    {
        {
}

Note that cnczone doesn't handle tabs or spaces well. In the Advanced Posting mode there is a button # to add tags that works better with C code indented with spaces.

Now that you understand curly brackets and indentation format your file to make it more readable

Find all the matching pairs. If necessary print out the program and draw a pencil line between them. (Trust me you only need to do that once to get the idea and make it unnecessary).

Now find where the "main" function begins and ends.

The Code you added to check and debounce the buttons needs to be placed in a forever loop at the end but yet inside the main function. The way your program was written the buttons would only be checked once. and then the program would terminate.

A forever loop has this format: (the curly brackets define the beginning and end of the loop)

for (;;)
{
    // stuff here is inside the loop and gets executed over and over forever
}

Let me know how much of this makes sense.

Regards

[Need TECH Help!]

You have told me this once before a few years back. Its starting to jog my memory now.
External buttons...as you already know...are not working.
Going to try and fix with info you just gave me and see if i can get it.
Thanks again,
Troy

[Need TECH Help!]

Hay Tom,
Got INIT code working so far. Next i need to add external switch control for spindle and coolant.

Something else i was wondering concerning a C program that does a homing sequence for Y axis. This is what i have for Y axis.

#include "KMotionDef.h"

#define Y 1


main()
{
ch1->LimitSwitchOptions=0x00000000; // disable limits

	DisableAxis(Y);
	Zero(Y);
	EnableAxisDest(Y,0.0);

	Jog(Y,2000); // start moving
	while (!ReadBit(139)) ; // wait for switch (input #139) to change
	Jog(Y,0); // StopMotion
		
	while(!CheckDone(Y)) ;

	Jog(Y,-500); // start moving off of switch
	while (ReadBit(139)) ; // wait for switch (input #139) to change
	Jog(Y,0); // StopMotion

	while(!CheckDone(Y)) ;
	Delay_sec(.5);
		
	DisableAxis(Y);
	Zero(Y);
	EnableAxisDest(Y,0.0);
	//Jog(Y,-2000);
	//Move(Y,-800);
		
	while(!CheckDone(Y)) ;
	Delay_sec(.5);
		
	DisableAxis(Y);
	Zero(Y);
	EnableAxisDest(Y,0.0);
	Delay_sec(.9);
	ch1->LimitSwitchOptions=0x113;	
}

I copied this code from a working example for my Z axis and worked fine. But would not work for Y axis. When executed for Y, table would not move off of switch until i changed the first ReadBit line by adding a "!" and then removing the "!" from second ReadBit. Is this because my limit switches of Z axis is set as Active High and my Y axis switches is set to Active Low?

The above code works fine for Y axis now,... but man.... was like finding a needle in a hay stack when you dont know what your looking for

Thanks,
Troy

[Need TECH Help!]

Also, am trying to get an external button to toggle Coolant Pump on and off. The code i have so far only works sporadically. I was trying to use what i have learned on an arduino/teensy project i did, but still no go . I have hit a wall with something so simple. What am i missing?

Thanks,
Troy

[Need TECH Help!]

Been customizing KMotionCNC face. Here is a screenshot so far. Hope to have a test video up of machine in a couple days. It has very nice rapids.


Troy

[TomKerekes]

Hi Troy,

Did get your coolant toggle to work?

This code is checking whether the bit is an Input or Output instead of whether it is on or off and the close parenthesis for the function is misplaced:

		if
			(GetBitDirection(154 == 1))
			ClearBit(154);
				
		else
			
			//(GetBitDirection(18)==1);
			//(GetBitDirection(154)==0);
			SetBit(154);

Should be:

if (ReadBit(154) == 1)  // read the bit is it on?
    ClearBit(154);  // yes, turn it off
else
    SetBit(154);  // no, turn it off

regards

[Need TECH Help!]

Hi Tom,
I got close. Here is what i ended up with...

if (ReadBit(154))
   ClearBit(154);
else
   SetBit(154);

But was not consistent with my external switch and having code in my main INIT program. Something i dont understand is if i made a separate C program just for coolant and set it to a user button, that user button would toggle coolant no problem.
I made the changes as you stated and all works well
Thanks,
Troy

[Need TECH Help!]

Now i have a new issue. Iam trying to control a lube pump with a relay and output from Kanalog. Here is code i placed in my main INIT program....

//Lube Pump On/Off timer
	SetBit(155);
	Delay_sec(300.);
	ClearBit(155);
	Delay_sec(3600.);

Problem is that the rest of C program will not run when this delay is running. I used the millis() function once in the Arduino world that would handle this issue.Does KFLOP support this function? Or how do you get such a delay to run without delaying the rest of program? Or is there a better way to cycle lube pump on and off? I read this part "Performing multiple Operations continually in a forever Loop" on the Wiki page, but dont see any examples.
Thanks,
Troy

[TomKerekes]

Hi Troy,

I added an example to the wiki. See:
KFLOP C Programs - Dynomotion

Regards

[Need TECH Help!]

Hi Tom,
I tried running your example in a separate thread in Kmotion (not KMCNC) and Output bit never toggles off. What did i miss?
Thanks again,
Troy

[Need TECH Help!]

Hi Tom,
My bad, when i copied and paste the #include "KMotionDef.h" got missed. Now to see if i can get it into main INIT program.
Thanks,
Troy

[Need TECH Help!]

Hi Tom,
Believe i got lube pump timer in INIT ok. All is running fine, so far.
Thanks
Troy

[Need TECH Help!]

Hi Tom,
I have PopUp windows when a limit switch is hit to notify user. But how can i disable these pop ups when iam doing a reference of axis? The axes use the same switch for Reference and limit.
This is more of a annoyance than a problem....
Attached is current main INIT c program.
Troy

[Need TECH Help!]

A more important issue i just found out is when i use the zero buttons in KMotionCNC to zero part, and then change my Jog Percentage, the part zeros in the axes DROs is replaced with the Machine Coord. Also noticed that the Work Offset is not being updated when using the a axis zero button. Did i miss something in my INIT c program or settings?
Thanks,
Troy

[Need TECH Help!]

Found it here....Tool Setup Trajectory Planner
I had setting "Zero Using Fixture Offsets" turned off.

Thanks,
Troy