Connected Sculpfun s30 to lightburn with limit switches. Set up the origin at 0,0.- Bottom left However, the Y direction is reversed. It thinks home is top left, so it goes to top and then grinds. Also in the move function the up arrow moves the laser down and down arrow moves the arrow up. It also shows when I use the down arrow and laser moves up the positions on Y axis is negative. What am I doing wrong?
I Don’t know if this will help to fix your situation, but I found a post that mentioned a Sculpfun S9 that had the Y-Axis flipped.
Hope this helps. 
thanks for the response. I tried that and it didn’t seem to work. This is my first laser; didn’t expect it to be so challenging.
Welcome to the world of Reality Check.
I am surprised you have a direction issue with the S30. Is it possible you messed with the GRBL parameters?
In the Console window, enter $$ to get your list of settings. Then copy from the window and paste that in the Reply box. I will compare your settings with my S30 to see if there are any differences.
thanks for comparing with your set up.
$$
$0=10
$1=25
$2=0
$3=4
$4=0
$5=1
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=1
$22=1
$23=1
$24=200.000
$25=3000.000
$26=250.000
$27=2.000
$30=1000.000
$31=0.000
$32=1
$41=0.000
$40=0.000
$100=80.000
$101=80.000
$102=250.000
$103=100.000
$104=100.000
$105=100.000
$110=6000.000
$111=6000.000
$112=1000.000
$113=1000.000
$114=1000.000
$115=1000.000
$120=1000.000
$121=1000.000
$122=1000.000
$123=200.000
$124=200.000
$125=200.000
$130=410.000
$131=400.000
$132=200.000
$133=300.000
$134=300.000
$135=300.000
ok
It appears that the problem is not that the directions are reversed, but in absolute coordinates the machine thinks the top is position 0 instead of the bottom being 0. Because when I move the laser down the coordinates on Y axis are negative. I’ve tried manually positioning at bottom left and then turning on the laser, but it still thinks that top is 0.
$21 = Hard limits, must have limit switches on both ends. Set to zero if only Home switches.
$23 = Homing direction invert. Yours is =1, mine = 7. This controls which direction it takes off when homing.
$130 is max Xaxis travel. Yours is 410, mine is 380.
$131 is max Yaxis travel. Yours is 400. Mine is 385, but I have added a manual Zaxis adjuster. I think it was 392 before the addition.
Try changing $23=7 and see if that fixes the homing issue. It should not impact the Jog directions.
If the Yaxis Jog is backwards (the top button moves the carriage towards you), be suspicious that a Yaxis plug is backwards at the motor (most likely) or controller board.
Yeah!!! This fixed the problem. Thank you for taking the time to help. I’ll adjust the dimensions as well.
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YAY!!! Be sure to mark it as solved so others can find the solution.
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