Nerf Stryfe Brushless Flywheel Cage - Kelly Industries

thingiverse

A custom brushless flywheel cage designed specifically for Hobbyking's 2627-3800kV brushless outrunner motors powers the Nerf Stryfe. I utilize Afro 30A Mini speed controllers, running a modified version of Simonk on my Teensy 3.2, which can also be used with a Teensy LC. The code is available for download from my Github repository. Spinning up to speed takes approximately as long as 180 motors equipped with stock flywheels, and I haven't conducted a thorough chronographing test yet, but the initial wheel version, featuring an 8mm gap, averaged 165 fps when firing Accufake darts. You are free to use and modify my design for non-commercial purposes, so I've included the Fusion 360 source files. To print the cage and flywheels, use 90% or 100% infill settings. All files are oriented for optimal printing, and the cage requires support material. I employed Slic3r for printing, making sure to set seam position to random, concentric infill, and top/bottom fill, with no supports necessary. Given the motor heat, I recommend using PET or ABS instead of PLA to prevent softening issues. An optional flywheel installation spacer helps position the flywheels correctly on the motors.