However, you must still connect the typical laser power plug to the laserboard, as it contains the LaserFire and Ground reference lines to control the laser. On the Cohesion3D Mini you would snip the 24v wire going from the LPSU to the board, and on Cohesion3D LaserBoard the 24v from the LPSU is pre-disconnected out of the box – LaserBoard must have power from the separate power supply to function. With this you are taking the load completely off the LPSU and powering the Cohesion3D Board with 24v entirely from the new supply. Archived messages are here, but I still need to update links. The FSL 4th Gen is not a K40, but it’s similar in some ways, and I’d found others that seemed to have done the upgrade in the Google+ Cohesion3D Group. It is also available for Cohesion3D Mini and comes with the necessary wiring and adapter to connect to that board. The Cohesion3D Mini board can function as a drop-in replacement for those cheap Chinese K40 laser cutters. It comes with all the LaserBoards and plugs directly into the DC Jack on them. It is no surprise that when you hook up a more powerful board, one that can run the stepper motors at higher currents in addition to a Z Table, Rotary Attachment, and other peripherals, this simply cannot keep up. While it is capable of producing thousands of volts to fire your laser tube, it has a very weak 24v rail – barely capable of powering the stock board and stepper motors.

Cohesion3d laser board