Lightburn "Move To Position" Feature

LightBurn Hardware Compatibility
1

I am a nooby to Lightburn so bear with me.

I have a Zbaity M37 Chinese laser and everything sort of works OK except for the "Move To Position X and Y coordinates in the Move Window.

I have set the machine size to 360mm x 360mm bed size and it homes to my 0 bottom left position well, I had to calibrate the X and Y axis to suit the M37 and it all works well now.

The issue is that when I set the Move to Position for X to 360mm and the Y to 360mm, the Y position travels at least another 50mm past the 360mm setting from my Home Position.

If I change the Y position to 300mm then it travels to the correct 350mm Y position, This issue happens in “Current Position,User Origin and Absolute Coords” the X position travels correctly no issues there.

Also if I click on Go To Origin the Laser always moves to about the 50mm position in the Y axis no matter whether I set the origin or clear and set the origin it always moves 50mm from my Home Position.

Any thoughts on this would be most appreciated

Cheers

2

How did you go about this?

Can you run these commands one at a time in Console after homing?

$I
$$
$#
?
3

Hi berainlb, I ran the commands in consol and here are the results, I noticed in the ? command there is
a 53.000 in there and that seems to be the exact amount in millimeters that the laser moves to from the Home position when i press “Go to Origin”

$I

[VER:1.5b.20211008:]

[OPT:PHBSW]

[MSG:Using machine:LASER_ENGRAVER]

[MSG:Mode=AP:SSDI=GRBL_ESP164:IP=192.168.0.1:MAC=58-BF-25-15-FF-09]

[MSG:No BT]

ok

$$

$0=3

$1=250

$2=0

$3=3

$4=0

$5=1

$6=0

$10=1

$11=0.010

$12=0.002

$13=0

$20=0

$21=0

$22=1

$23=11

$24=1000.000

$25=4000.000

$26=250.000

$27=6.000

$30=1000.000

$31=0.000

$32=1

$100=80.431

$101=80.404

$102=707.215

$103=80.000

$104=80.000

$105=80.000

$110=20000.000

$111=30000.000

$112=30000.000

$113=20000.000

$114=20000.000

$115=20000.000

$120=1000.000

$121=1000.000

$122=1000.000

$123=800.000

$124=800.000

$125=800.000

$130=360.000

$131=360.000

$132=370.000

$133=360.000

$134=370.000

$135=370.000

ok

$#

[G54:3.000,53.000,0.000]

[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]

ok

?

<Idle|MPos:5.993,5.995,0.000|FS:0,0|Pn:Z0|WCO:3.000,53.000,0.000>

ok

4

This is an offset which is causing your pain.

Let’s try to remove. Run this in Console:

G10 L2 P1 X0 Y0

Rehome and test. Check that report position in Move window or by using ? command is 0,0.

5

Thanks berainlb, that fixed the offset issue. I thought it might be something like that, but I have no knowledge of the GRBL language, maybe I should read up on it.
Thanks again.

6

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