The FDL-2 is the successor to the FDL-1 Robotic Foam Dart Lancher. It is similar in function but instead of “Mega” sized darts firing from a revolver, it is designed to accept Nerf brand magazines and Nerf “Elite” size darts. It is fully automatic with an adjustable rate of fire up to about 8 darts per second. It also has select fire allowing you to fire in bursts of 1, 2, or 3 shots in addition to full auto. The entire FDL-2 is controlled by a Particle Photon microcontroller. The Photon is very similar to an Arduino except it has built in wifi allowing you to flash new code to it without plugging a USB cable into it. Darts are propelled by brushless outrunner motors which are powered by electronic speed controllers (ESC’s). The FDL-2 uses a stepper motor based pusher mechanism to push darts between the flywheels. Between the microcontroller, stepper motor, and speed controllers the FDL-2 has a limitless set of tuning options. The entire blaster can be reprogrammed to operate in any way. Having wifi also opens up the possibility of using a phone app or web page to fine tune the function of the blaster on the fly.
download the files on: http://www.thingiverse.com/thing:1830185
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