FingerTech 'Viper' Horizontal Spinner Add-On

Price: 88.74 CAD
68.55 USD 56.82 EUR
In Stock: 0

Keep an eye out for a new version coming soon!

• Add a vicious horizontal spinner weapon to your Viper Combat Robot!
• High-speed brushless motor and controller plus a FingerTech Blade Hub.
• Mounts on the existing Viper Combat Robot. (Requires modifying the original plastic armor, or buy a new set here: Horizontal Spinner Armor Set)
• No soldering required!
(Blade not included. Shown with Titanium 6-inch Weapon Blade)

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Add a vicious horizontal spinner weapon to your Viper Combat Robot!

Kit Includes:
Motor:D2822/17 1100KV Brushless Motor + screws
Controller:20A Brushless Speed Controller
Hub:Blade Hub holds any blade <=4mm thick with bore of 10mm, 16mm (5/8in), or 20mm
Instructions:Detailed instructions with pictures. (Download here)
- Blade not included. Shown with optional Titanium 6-inch Weapon Blade
- Requires modifying the original plastic armor, or buy a new set here: Horizontal Spinner Armor Set

Weight: 70grams (2.47oz) - added to the base kit, the total weight (with optional Titanium Blade / Bloodsport Bar) is 441grams (15.6oz) / 454grams (16oz).
Blade diameter: Accommodates blades up to 15.2cm (6in) tip-to-tip.
Voltage: 7.4V - 11.1V. The 7.4V battery included with the Viper base kit works great, but a 3S lipoly will give the weapon extra oomph!

- Wrenches: 15/16in and 1in
- Threadlock liquid
- Electrical tape, ziptie, or twist-tie
- Phillips screwdriver
- C-clamp for weapon safety lock
- Weapon Blade - any blade 68grams (2.39oz) or less. Recommended: 6-inch Titanium Weapon Blade / Bloodsport Bar

 Viper Horizontal Spinner add-on.IGS (full bot, old version with blade underneath)
5 Product Reviews - Average rating 4.2 / 5 (Show All)

Click to review this product

Good, Powerful Weapon

- 16th September 2020

This weapon spins fast, has decent reach with either of the blades, and because the blades have decent weight (for a 1 pound bot) it really packs a punch. overall, great kit, a must buy for your viper

Great weapon on Viper!

- 26th August 2018

My son coupled this weapon with a viper kit. Very effective, took second place in his very first contest. See the blade working successfully here: https://youtu.be/U9RtZ-0UPhU

Powerful but unreliable

- 09th February 2018

I've used this kit on two separate bots now, both of which were 2wd undercutters. The main issue is that the hub mounts directly to the motor shaft. While this does allow for a VERY powerful weapon, it results in the motor shaft becoming a critical weak point in the weapon system. I've sheared four motor shafts using this kit.
[FTR: The Viper and its add-ons are ripe for upgrading once you've broken them in! Some builders have replaced the stock motor shafts with hardened dowel pins to solve that particular issue.]


- 25th December 2015

I had the opportunity to see at least two Viper kits using the spinner add-on at Robothon 2015 earlier this year. Both bots lost their spinners in both matches each of them competed in. The one that competed in the antweight rumble also lost its spinner there. The blade itself is quite good(as Cyclone from NERC has showcased), but the system as is admittedly has proven to be less than impressive. [FTR: Blade Hub is already being redesigned away from setscrew to clamp mount!]


- 11th July 2015

I entered the robot with a spinner and got 1st place

Click to review this product

FingerTech 'Viper' Combat Robot Kit

Updates!  The Viper now uses our new and improved Twist Hubs!  It also includes a JST-to-9V Adapter cable so you can power it with a 9V battery instead of a lipoly battery (saving you the cost of battery and charger until you are ready to upgrade!).  We've also updated the sticker.  :)

• The Viper Combat Robot Kit is quite simply the best way to get into combat robotics. You will not find a cheaper robot kit with this functionality and expandability anywhere else.

• The Viper kit comes with everything you need to get started in competitive robotics:

- Chassis, motors, wheels, speed controllers, armor, and an easy to follow instruction manual.  Radio and lipoly battery options are available if you need them too.

• Once you've mastered the basics, upgrade your kit to a Lifter or a Spinner with optional add-ons!

FingerTech 6inch x 3mm Weapon Bar

• This double-sided titanium weapon bar can be used for horizontal spinners or really big "Nightmare"-style vertical spinners

• Mounts with the FingerTech Blade Hub.

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