I put homing switches on my laser. Now the X,Y axis does not move When I home

LOL… no wonder 0,0 didn’t make sense to me. Jogging controls work as they should. Left is left, right is right, up and down is correct also. Homing sends laser to top right.

I just burned some text into the top left of some wood. It matched the position I placed the text on in LB.

Device settings has the origin set to top right.

Actually, can you run these commands after homing please:

$#
?

$#

[G54:-265.000,-260.000,0.000]

[G55:0.000,0.000,0.000]

[G56:0.000,0.000,0.000]

[G57:0.000,0.000,0.000]

[G58:0.000,0.000,0.000]

[G59:0.000,0.000,0.000]

[G28:0.000,0.000,0.000]

[G30:0.000,0.000,0.000]

[G92:0.000,0.000,0.000]

[TLO:0.000]

[PRB:0.000,0.000,0.000:0]

?

<Idle|WPos:1.792,1.806,0.004|FS:0,0|Ov:100,100,100>

Did you already run this? If so, it didn’t take. If not, then run this. Then run the $# and ? again please.

If you already did then rezero first and then try it.

G10 L2 P1 X0 Y0
G10 L2 P1 X-530 Y-520

But I’m still wondering why positive numbers would have put you to the front left. Anyhow, try again please.

$#

[G54:-530.000,-520.000,0.000]

[G55:0.000,0.000,0.000]

[G56:0.000,0.000,0.000]

[G57:0.000,0.000,0.000]

[G58:0.000,0.000,0.000]

[G59:0.000,0.000,0.000]

[G28:0.000,0.000,0.000]

[G30:0.000,0.000,0.000]

[G92:0.000,0.000,0.000]

[TLO:0.000]

[PRB:0.000,0.000,0.000:0]
?

<Idle|WPos:266.792,261.806,0.004|FS:0,0|WCO:-530.000,-520.000,0.000>

Now when I hit “get position” I get this…

when I type “move to position” and set the x, y to 0,0 it still goes back and triggers the switches.

also, when I type in v263 y258 into move to position, the laser also moved back and triggers the switches. Now I’m confused!!

What happens as you jog down and left? Do the number increment or decrement? What happens if you go to far bottom left? What’s the number there?

very close to bottom left.

Capture

Well, this explains why you had to invert your homing direction unexpectedly.

My brain is befuddled. Try one thing. What happens if we do a positive offset? I haven’t thought it through fully but worth a shot:

G10 L2 P1 X265 Y260

You tried this earlier but don’t know if we tested it.

Please re-home and run ? please.

?

<Idle|WPos:-528.208,-518.194,0.004|FS:0,0>

When I tell the machine to go to 0,0 it does move to the bottom left but slams into that corner and tried to keep going.
At the home position, I click get position …
Capture

[G54:265.000,260.000,0.000]

[G55:0.000,0.000,0.000]

[G56:0.000,0.000,0.000]

[G57:0.000,0.000,0.000]

[G58:0.000,0.000,0.000]

[G59:0.000,0.000,0.000]

[G28:0.000,0.000,0.000]

[G30:0.000,0.000,0.000]

[G92:0.000,0.000,0.000]
I did $#
[TLO:0.000]

[PRB:0.000,0.000,0.000:0]

shouldn’t the home position be -265 -260??

No. It should be positive 265, 260. The main problem is that positive is in the left and down direction. Need to get my head around that.

Is it possible that the wires to the steppers were reversed? Or did you add another pulley?

Well, if I reverse the wires on the steppers, the the jog buttons are reversed. I think is is working except that the get position at home is -528 and -518. If we can get that position to be -265 -260, I think that will make everything work.

I think the reason it is crashing is because it is trying to move the laser 528 and 518 when it can only go 265 and 260.

I recall you saying you had to invert the direction in GRBL which I thought was odd but put out of mind.

I’m trying to decide in my head if reversing the wires and reverting the direction inversion would fix this… I want to say yes.

Well, it was working “fine” at 0,0 right? But not sure what other potential problems it could cause.

In either case I don’t think you want to be working in negative numbers.

I had to reverse the homing cycle direction via $23=3. in order to get the laser to go to the right and then back, That did not affect the jogging. If I reverse the steppers, the jog is reversed. I understand what your saying and I can reverse the steppers but how would I get the jogging to be correct?

What is $3 set for now?