Ok, the laser is this.
https://neje.shop/products/e30130
I was trying different connections and i tried connecting to pins 17 and 1. And it somehow worked..
I am attaching the manual of the BoB.
I dont know if i did something stupid or not. But for now it works. Although i would like to know HOW it works...
Also, because no local sellers have the smoothstepper, this board is all i've got so mach3 it is for now...

To get PWM you connect to pin 1 and GND then set pulley speed 1  from 0 to 100 then calling S50 M3 will give you 50% power.

Its a while since I did this so maybe one of the others can put more light on this.

Just to confirm that you need a 5V supply to that BoB to make it work if you don't have a USB connection to it (which is only for power) and also a 12V supply if you want the 0 - 10V to work.