Mini Rambo Case Top with Fan

thingiverse

I printed out the modified case and loved it. It fit perfectly and was incredibly user-friendly. However, I always prefer having active cooling on my controller boards. Nine times out of ten, it's not absolutely necessary, but I use the mini Rambo on an MPCNC in my workshop. It can sometimes get extremely hot during a large program. I remixed the original lid to add a 5V, 30mm fan. I have it plugged into FAN1 on the board and utilize M106 to turn it on right before the start of a cut. I didn't include screw holes for the fan. Instead, I simply line up the fan and use a hand drill to drill small holes for M2.5x12 bolts. If your fan is too thick to fit inside the case, you can bolt it to the outside and then run the power through one of the cooling holes. You'll need to obtain the bottom of the case from the original Thingiverse design.