Solenoid Cage for Nerf Stryfe

thingiverse

This is a custom solenoid pusher assembly for the Nerf Stryfe.\r\n\r\nThe metal cage in this design replaces the stock mag switch lock cover, allowing users to install an input into an Arduino for an ammo counter reset. The cage also includes space to install a tiny microswitch on top as a 2-stage trigger switch.\r\n\r\nOne cage assembly is compatible with the Flywheel The World solenoid, which can be sourced from various online retailers. Another cage assembly is designed for generic 35mm solenoids found on Aliexpress and eBay.\r\n\r\nBoth cages use the same pusher nub, although users may choose to modify it for their specific needs.\r\n\r\n**Warning:** This design is a one-way modification that cannot be easily reversed. Users should have the necessary expertise, tooling, and parts before starting the installation process.\r\n\r\nThe battery bay will be significantly reduced after installing this solenoid pusher assembly, making it essential to use a stock mount battery.\r\n\r\n**Video Demonstration:** A YouTube video showcasing the Solenoid Blaster in action is available at https://youtu.be/pT_aiZbrsOY. The blaster features impressive recoil and is similar to another design called Swordfish.\r\n\r\n**Printing Instructions:** To ensure accurate printing, users should use a strong infill setting for the solenoid cage assembly. A 100% infill with 0.1mm layer height is recommended to achieve dimensional accuracy. The overhangs are critical and require high support settings with a roof.\r\n\r\nThe pusher nub can be printed at 100% infill using a strong filament, such as Polymaker Polymax, with 0.1mm layer height for internal threading. The template can be printed with any desired settings.\r\n\r\n**Special Considerations:**\r\n\r\nFor the Flywheel The World solenoid:\r\n\r\n1) Do not use on 4s as it may cause the internal pusher bar to mushroom over time, leading to jamming within 1000 shots. A file can be used to repair the issue.\r\n\r\n2) Be cautious when cleaning out the solenoid's travel area to avoid catching the spring retention circlip.\r\n\r\nFor the generic 35mm solenoid:\r\n\r\n1) Remove the brass and steel nut on the end, as they are torqued together. Use a spanner for removal to avoid damaging the components.\r\n\r\n2) Replace the return spring with one that is stronger but not too strong. A source of 0.8mm x 45mm springs has been found suitable.\r\n\r\n3) Thread the nub all the way, allowing some thread to protrude from the front. Additional modifications will be required at the rear of the blaster, and the screw post should be removed.\r\n\r\n**Installation Instructions:** A YouTube video demonstrating the installation process is available at https://youtu.be/i3_B2BE2948.\r\n\r\n**Wiring Instructions:** Users can choose to wire the solenoid directly or use an Arduino control. The provided wiring diagram allows for Bluetooth capability using a HC-05 BT module and an Arduino Pro Micro. Firmware is included, which gives pin assignments for brushless systems (e.g., Ultrasonic system) but will not operate with DC motors.\r\n\r\n**Support:** For any questions or concerns, visit Making Stuff Awesome on Facebook.\r\n\r\n**License:** This design, firmware, and circuit diagrams are licensed under specific terms. Commercial use is strictly prohibited unless authorized in advance by the designer. If you require a 3D printed model, contact the designer or use a 3D printing service like 3dHubs.