Jtech Laser Issue

[kerry]

Finally got around to adding the Jtech to my Carve King this weekend. Finished all the assembly, moved Z Homing switch to SP EN, plugged in the Signal cable to Z+. 
couple of issues. Here's screen output below
First, the M3 S3500 doesn't turn on the laser. Was going to do the focus step. I did double check the the switch was on TTL and I can get the laser to turn on manually via this switch. 
Second is that $H doesn't go back to home any longer. Z moves down about 1mm and that's it. Also get an 'ALARM:8' when trying a $H.
I did NOT flash the board per the instructions because I did order the CC and Laser at the same time, so assuming it's all good there. 
just need a couple suggestions to check. 
Thanks in advance. 

$0=10

$1=255

$2=0

$3=0

$4=0

$5=0

$6=0

$10=1

$11=0.010

$12=0.002

$13=0

$20=0

$21=0

$22=1

$23=0

$24=35.000

$25=1200.000

$26=94

$27=4.000

$30=12000

$31=0

$32=0

$100=200.000

$101=200.000

$102=200.000

$110=3500.000

$111=4400.000

$112=3000.000

$120=240.000

$121=240.000

$122=240.000

$130=432.000

$131=432.000

$132=95.000

ok

>>> g1 f300

ok

>>> m3 s3500

ok

>>> $32=1

error:5

[Bruce]

Check with Derek on issues with laser.

[Derek the Admin]

Let's make sure that we actually have the laser firmware on there. See the attached for the laser firmware.

Also, here is what Grbl documentation for Alarm 8:
Homing fail. Cycle failed to clear limit switch when pulling off. Try increasing pull-off setting or check wiring. It's like it's triggered from the onset. I bet you need that firmware.

Carve King Homing and No Homing Laser Spindle.hex (83.76 KB)

[kerry]

Thanks Derek, I'll pull it down today and check.

[kerry]

Perfect! that did the trick! Thanks!

[Derek the Admin]

Awesome. Sorry for the issue.

[cncnoob]

I'm having the same issue except it still homes just fine. Same scenario as above except with the Mega V instead of the Carve King. The only link I see for the firmware says it's for the carve king; Will that work for the Mega V as well?

[Bruce]

Check the Millright breakout board. I think you just connect to the PWM signal for the laser level control. And then turn it on in the GRBL setup. $32=1 Laser mode enable