So, this step is optional, and whether or not you want to be able to control all your fans on your printer or not. To do this we will install the RAMPS 1.4 RRD Fan Extender – read on! On this printer, we have hooked up a hotend cooling fan (NOT the part cooling fan) which  … Read more

Now that we have power to our RAMPS board – lets take care of it a little, and add in some active cooling to the board with a RAMPS Cooling Fan.