GNK: A Nerf Dual stage Brushless Solenoid Blaster

thingiverse

Introducing GNK, a Dual Stage Brushless powered Solenoid Mag in Grip Blaster. This utilises 1408 size brushless motors in a dual stage configuration, as well as using a FJ-Z05 Solenoid as the pusher, and uses straight Talon magazines. This is a blaster that requires a certain degree of understanding for how brushless motors work, as well as an understanding of how they are used within the Nerf hobby. The pusher is a "blowback" style system, with the solenoid pushing the top slide backwards, which in turn moves the pusher that cycles darts into the flywheels. This blaster also has slots for a potentiometer and 3 position switch, which enables flywheel speed control and select fire features for the solenoid. I would recommend running this on a 4s lipo, so the solenoid has plenty of power to feed darts reliably. Firmware TBA. The .step has been included if you wish to make any changes to this design. Parts needed: - 4x Emax RS 1408 brushless motors - 4x Flywheels (Using Airzone's flywheels found in their Velco and Mackrel blasters https://www.thingiverse.com/thing:4927680) - 1x FJ-Z05 Solenoid (Remove the return spring on this, you do not need it as the 2 slide springs do more than enough work) - 1x Arduino Nano and buck converter (Narfduino can be used without a buck) - 1x 4 in 1 ESC (ESC with onboard BEC can be used, eliminating the need for a separate buck for the arduino) - 1x 10K Potentiometer (With 6mm Shaft) - 1x 3 Position Switch - 1x V4 Microswitch - 1x Small Pen Spring (For trigger) - 1x 5.5mm Spring cut down for the Mag Release - 2x 5.5mm x 38mm Compression Spring (For Slide) - 1x M3 Thumbscrew (Stryfe style) - 4x M4*8 Bolts - 26x M3*10 Screws - 8x M3*18 Screws - 4x M3*6 Screws I highly recommend printing this in PETG, the motors can get very hot. Supports will be needed for some of the STLs included. I would like to thank airzone for the flywheel cage and motor inspiration.