The Cohesion3D Mini can be dropped into the K40 Laser Cutter in under 20 minutes to provide an immediate performance upgrade. Smoothie is the only firmware which calculates the PWM value based on acceleration every single step, resulting in the cleanest possible cut and even power around corners. No burned corners here!
The K40 is a very inexpensive laser cutter that can be procured on eBay in the $340 range. It is capable of engraving leather and metal and cutting wood and plastic. However, the stock electronics are very lacking in functionality and actually restrict the user to a limited version of Coreldraw which is not pleasant to use. This upgrade opens the door to using any gCode generator and sender to control your machine, the most notable of which is LaserWeb:
In stock. Please note that the production version of the Mini is slightly different than what is pictured: namely larger terminals have been specified for the MOSFET connections. More information about the Mini (for 3D Printing, CNC, and other applications) is available here: Cohesion3D Mini.
The bundle includes the Mini Board itself, 2 A4988 drivers, a PWM Cable for the laser, and a MicroSD Card with the laser configuration preloaded, allowing you to be up and running right out of the box.
Cohesion3D Mini replaces the stock control board included with the K40 Laser. With its identical size and hole pattern to the stock board, it drops right into the existing mounting holes.
All known connectors and wiring combinations for the K40 Laser are available on the Mini. The upgrade consists of simply swapping over 4 - 5 cables.
The Complete Installation: