Laser won't shut off between travel

[Flex1 (Mance Sloan)]

Hello,
I could really use some advise in regards to a recent controller upgrade I made. I replaced my limited M2 Nano to a Mini Gerbil. My laser is a K40 Laser with no notable mods. When I attempted my 1st cut, I noticed the laser appeared to never shut off and cut the “travel moves” and the laser file. I read here and google trying to find a resolution with little success. Can someone please point me in the right direction, I am new to this but eager to research and learn.

This is what is returned with the $$ command.

$$
$0=10
$1=255
$2=0
$3=1
$4=0
$5=1
$6=0
$7=0
(ATC M6, pulse/ff)
$8=100
(ATC Tool Td, milliseconds)
$9=100
(ATC M6 Td, milliseconds)
$10=31
$11=0.010
$12=0.002
$13=0
$19=0
(Softstart, milliseconds)
$20=0
$21=0
$22=1
$23=3
$24=2000.000
$25=2000.000
$26=250
$27=2.500
$28=5
(Spindle freq. 0 to 15)
$30=1000
$31=1
$32=1
$100=157.000
(x:stp/mm)
$101=157.000
(y:stp/mm)
$102=160.000
(z:stp/mm)
$103=160.000
(a:stp/mm)
$104=160.000
(b:stp/mm)
$110=12000.000
(x:mm/min)
$111=5000.000
(y:mm/min)
$112=5000.000
(z:mm/min)
$113=5000.000
(a:mm/min)
$114=5000.000
(b:mm/min)
$120=8000.000
(x:mm/s^2)
$121=3000.000
(y:mm/s^2)
$122=3000.000
(z:mm/s^2)
$123=3000.000
(a:mm/s^2)
$124=3000.000
(b:mm/s^2)
$130=230.000
(x:mm max)
$131=320.000
(y:mm max)
$132=200.000
(z:mm max)
$133=200.000
(a:mm max)
$134=200.000
(b:mm max)

Thanks

[Flex1 (Mance Sloan)]

My current versions
Lightburn 0.9.04
Gerbil 1.1

[bernd.dk (Bernd)]

Hi Mance,
I have exactly the same $$-settings and the same machine and controller without the problem you describe. I assume that you have connected the Mini Gerbil correctly according to Paul’s description.
I hope you find a solution for the problem.

[Flex1 (Mance Sloan)]

Thanks for the response. The more I’m reading, it appears I may have to modify some power supply connections. I’m sure the solution is staring me right in the face, so will keep researching until I figure this out.

[bernd.dk (Bernd)]

Show a picture from your mini gerbil connected to the power supply, maybe I can see a difference to my connection.

[Flex1 (Mance Sloan)]

Thanks for the help.Once I’m off work, I will post a photo of the configuration.

[Flex1 (Mance Sloan)]

Here are photos of controller and power supply connections

[Flex1 (Mance Sloan)]

[Flex1 (Mance Sloan)]

I figured it out. I never connected the PWM out to the IN on the power supply. I ran across this picture showing the configuration for K40 machines without a ribbon cable. Thank you.

[bernd.dk (Bernd)]

I’m glad you found the error.