X and Y run away back and right??? lead 1010 high-z kit

Hoping I can get some technical help.

I've had some good luck with this machine, a few weeks old, and then a couple days ago it started doing all kinds of weird things upon power up, one of which drove me nuts, the grbl settings reverted from my 350mm travel to the stock 90mm for the standard kit, when it reverts, upon starting a tool path the Z just rises straight up and hits the limit switch instead of stopping just below it.

I got that fixed by reloading the 350mm travel.

NOW the issue is at the end of the tool paths, the Z lifts up and then the X and Y runaway to the back and right until it crashes the frame. Nothing I do in manual editing of the X and Z will override this.

I need help.

I have my Z limit switch up top of the Z-axis, I have my X switch to the left on the gantry, my Y on my right and forward, closest to me at the front of the machine.

In the Grbl settings I have lead 1010 selected, limit switches on, homing on (1) and the jog axis are all normal, nothing is inverted. My Z- jog moves the spindle down towards the table spoil board and Z+ raises it towards the top of the Z axis where the limit switch is.

I have only the "homing z axis" inverted as the z switch is at the top. (note in the standard assembly video they put it at the bottom of the z axis-so you don't need to do this, and in the high-z video they put it at the top-so it has to be inverted to move the direction of the limit switch (up))

I power up my machine, I always home the machine which means it goes all the way up and sets the Z, then moves forward and to the left to home the X and Y.

Then I move my machine spindle to roughly the middle of the spoil board where I zero (X, Y and Z) at the left and nearest edge of my working material.

From here I post from Fusion using the G53 -10, -10, -10 defaults using the Open Builds post processor selection, etc.

I run my tool path in the open build control, Z goes all the way up stops 10mm below my limit switch, then it moves down and begins to cut my material correctly. At the end of the program, the Z moves back all the way up stopping 10mm below the limit switch, but then the X and Y start running away going to the right and back corner of the machine until it crashes. No manual editing of the Gcode will stop it.

HELP!!!!

Respectfully, Ryan

 

Here is what I just found out.

From the Open Builds Control Software, If I use the dropdown option next to the Z axis numerical read out and select GOTO machine coordinates (Z0) the spindle moves up to the limit switch and stops. That is fine.

However, when I do that with the X and Y drop down and select GOTO machine coordinate X or Y (X0 or Y0) both axis move away from where the machine is homed.

X moves to the right (limit switch is on the left) and Y moves back (limit switch is on the front).

This seems to be my primary issue or root cause perhaps? X and Y moving like that, right and back and crashing after every toolpath end.

 

Thank you for that, I think I understand it now where the machine zeros are, however, it homing to the front left, how do I stop my machine from crashing back right after every toolpath I run.

I'm thoroughly confused there.

Yesterday, I could jog my machine to where I wanted it to clear from and use those coordinates from my material zero, and the machine would mill away then lift up and move out of the way right where I told it to go.

Now I can't do that and it just goes back and right until it crashes...

Hope I'm communication here.

I don't know what to do differently.

I am using the stock X and Y Grbl settings for travel distance, 350mm for the high Z.

 

Follow up, and first thank you to everyone who tried to help...you are much appreciated!!!

So I moved my X and Y limit switches to the back right (lead 1010) instead of the front left.
I inverted the homing switches so now all three homing switches in Grbl settings are inverted. (my jog switches are all 3 normal, Z- moved down, Z+ up, etc.)

Now the machine works like it should. I home all and it homes up and to the right and all the way back.

zeroed to my work piece left closest corner as always, roughly middle table. Ran tool path (G53 enabled in Fusion using stock -10, -10, -10) and machine mills correctly in all moves, then retracts the Z all the way up, then moves right and back to the limits stopping just short.

Good so far.

Then I run the same tool path except I disabled the G53 in Fusion, and the machine mills correctly and when done lifts the Z axis all the way up, but then just shifts the Y axis forward slightly of where the material was zeroed. I believe it is using X -0.3937 and Y-0.3937.

I will just run the machine like this.

No matter what I do, it will not run correctly with the X and Y limit switches left and forward as in the setup videos, even with G53 off in Fusion...it still crashes.

So unless there is a fix for that or somebody can tell me what I'm doing wrong! I will just run the switches where the true Machine coordinates are and be done.

I've lost 3 days over this and am no smarter for it! Ha ha! Onward!