Hydraulics/Valves/Needle/Controlled

goal: control hydraulic flow with an arduino using a needle valve, a stepper motor, and printed parts

http://www.thingiverse.com/thing:7379

http://www.thingiverse.com/thing:5213

http://sketchup.google.com/3dwarehouse/details?mid=17db6db6b3945230fdf3cc79ea706ba3

http://sketchup.google.com/3dwarehouse/details?mid=62d731fc3999065247d83af0b3662c0b

http://reprap.org/wiki/Wade's_Geared_Extruder

http://www.airlinehyd.com/knowledgecenter/symbols.asp