Newbie here, I have an open frame cnc with a laser attached, blackbox controller, no limit switches. I set user origin lower left of job, run macro G92 X0 Y0
$10=0
set origin and return origin the same. I’m running a circle inside of a square wanting it centered in the square. The job runs correctly with the exception is the job burns approximately 3/4" to right and 3/4" lower than it should be from center. I’ve looked for offsets, there is a -21mm offset for the laser pointer. Here are the settings:
$0=10
$1=255
$2=0
$3=2
$4=1
$5=0
$6=0
$10=0
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=0
$23=0
$24=25.000
$25=500.000
$26=250
$27=1.000
$30=255
$31=0
$32=1
$100=159.966
$101=160.444
$102=399.910
$110=3500.000
$111=3500.000
$112=500.000
$120=500.000
$121=500.000
$122=100.000
$130=711.000
$131=711.000
$132=175.000
$#
[G54:-99.059,28.446,-89.974]
[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]
[G92:208.276,-37.334,0.000]
[TLO:0.000]
[PRB:0.000,0.000,0.000:0]
I’m sure it’s a setting some where I’m missing…any suggestions?
Does your machine use a separate laser pointer when framing?
If not, then disable the -21mm laser offset, because that is likely what is causing your “3/4” lower problem"
As for the 3/4" to the right - I’m not really sure about that but I suspect this is a job origin issue since it sounds like you are using the ‘Start From’ = ‘User Origin’ positioning mode, which is not as ideal for a system without auto homing.
The laser does have a separate pointer for setting the origin. The -21mm was what the laser mfg said to put in as the offset to use the pointer. I disabled that which did take care of the down difference, but the offset to the right still persisted, so I input -21mm on the X axis and ran the test and the problem vanished, I have begun using Current position to start the job.
I hate to resurrect this thread but the problem was solve, it would cut to the correct position, then I activate lightburn with the license code and the problem returned. I can shut off the offset the laser offset, I can put in any offset I want and nothing changes, it is still offsetting 21mm to the right on the X axis. Any ideas?
