Rubber bands sentry gun

Summary Full-auto sentry gun, shoots rubber bands. Youtube:

For the software, follow the guide: http://projectsentrygun.rudolp...

 material:

mechanical parts:

-3 M5 50mm screws 

-2 M4 30mm screws 

-1 M4 40mm screw 

-12 M3 16mm imbus 

-3 M3 10mm 

-15 M3 nuts 

-3 M5 nuts

-6 M4 nuts 

-3 M6 nuts 

-10 servo screws

-1 M6 80mm threaded bar 

-1 skateboard ball bearing

-1 30 cm piece of string 

-2 135 mm x 8mm ⌀ metal pipe 

-1 35 mm x 8mm ⌀ metal pipe 

electronic parts: 

-1 180° micro servo

-1 180° servo

-1 360° servo 

-1 arduino UNO, 2009 or Mega 

optional (for manual cotrol):

-1 joystick

-1 button

Printing settings (BQ Witbox):

200 micron

60 mm/s

supports everywhere