Another Duet WiFi Enclosure with Fan

This is a Duet Wifi Enclosure that takes an 80mm fan internally. The fan blows cold air on the underside of the board (where it is needed for cooling the stepper drivers) and exhausts through slots in the top and bottom of the enclosure. It is recommended that the fan is mounted using nylon nuts and bolts to ensure that there is no possibility of the bolt heads shorting on the underside of the Duet. There is access to the micro sd card as well as reset buttons etc. There are slots for cable entr