
FingerTech Viper Vertical Spinner Add-On
Add a vicious vertical spinner weapon to your Viper Combat Robot! As of May 2025 this is the new R3 Vertical Addon. High-speed Brushless Motor and Controller mated to a Clamping Drum with AR400 Steel teeth! Mounts on the existing Viper Combat Robot. (Requires modifying the original plastic armor, or buy a modified set here: Vertical Spinner Armor Set) No soldering required! Kit Includes: Drum Weapon: 28mm Clamping Drum with AR400 Steel Teeth Motor: D2822/17 1100KV Brushless Motor (4mm shaft) + Screws Controller: 20A Brushless Speed Controller Motor Mount: A pair of D-Series Motor Upright Mounts to secure the weapon motor with double support. Bearing: 4mm Roller Bearing supports the far side of the motor for maximum durability. Wedge: The angled steel V-Spinner Wedge guides opponents up into the drum. Screws: Includes all screws needed to assemble the Vertical Spinner Add-On and a 1/16in hex wrench. Instructions: Detailed instructions with pictures. Viper-V-Spinner-add-on-R3.pdf