hello all I have a few questions about my controller enclosure that I'm building. 1) I bought this spindle and pwm (Spindle Speed Control & Quiet Cut Spindle) my question is that I want to add a potentiometer that I can mount to the outside of the enclosure to control the speed, what kind of potentiometer do I need to do this? when I search potentiometer on eBay I see different ohms ratings etc. how do I tell which one that I need? Also does anyone have any links to how to hook a potentiometer up to this controller. the video on the website only shows how to use the on board potentiometer 2) fans, do I need a fan for each of the power supply or do I just cut an exhaust into the enclosure for the fans that are on the psu. also what type of fan do I need for the controller (panucatt gradus m1 pro) 3) I ordered 24 awg wire ul1007 but it turns out that my steppers have 22 awg ul1007 wire. is the 24 awg ok for this or do I need to match the 22? 4) does anyone know what gauge the wire is on the quiet cut spindle? so that I know what wire to use to wire it up.