Precision Electromagnetic Projectile Launcher

Link to IMGUR gallery

The overall purpose here was to create a scientific instrument where the velocity can be precisely controlled. A mathematical function will be determined that relates capacitor bank voltage and angle to set the desired velocity prior to launch. The goal was not to make the fastest projectile possible as its 50 ft/s max velocity is enough for the educational applications needed.


  • Two coil design• 12V DV input, regulated to 5VDC for the arduino, and stepped up too 100V for the capacitors • Pulses about 50A @ 100 V through the coils
  • Four IR sensors that can calculate exit velocity and acceleration
  • Set the velocity prior to launch
  • Nifty solid state design
  • Made out of lightweight, flexible, strong material ... wood.
  • Built in "LASER"

(Moderator edited the link)