Build Your Own SLA/SLS

Hey guys I'm almost done the mechanical part of my printer
I have a problem with Marlin
I need Shutter a servo does not work
  Gcode Manual M280 P11 S10 and M280 P11 S160 , etc but does not move
servo signal connected to pin 11 of mega arduino
Arduino with a 5V supply

this is the Marlin I've modified
https://www.dropbox.com/s/815y5xdh5zrru ... 1.rar?dl=0


if some fellow forum can review and modified to work the shutter me thank you
thank you
pedro pin

hey, did it work ? please let me know. I'm too interested to do the same thanks