Cetus dual fan - PWM controlled fan - TINYFAB CPU

Fairly crude but working dual fan setup for the cetus 3d using the TinyFab CPU. Great results from the PWM controlled fan. Previous setup had the fan on all the time. Had to redesign the all the parts attached to the fan element of the hotend. Some soldering required. Use at the owners own risk. To get the PWM to work had to wire straight on to the CPU and run the signal through a logic convertor to get a 5v signal. Therefore 5V source required which I got from a third party Power supply