I currently have a geeetech aluminum i3 printer with a sanguinololu board. While it prints very nice I miss the option to control a nozzle fan. Currently I can turn it on or off but I would like to be able the control it from the software. Therefore I was thinking to replace the sanguinololu with a ramps board. Before I will go down this road I was hoping if someone could give me some advice..? Will I run into problems? http://ift.tt/2bGw4Z4