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Home » Categories » Robot Kits

FingerTech 'Viper' R/C Robot Kit
FingerTech 'Viper' R/C Robot Kit
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Discontinued - see the new and improved Viper Combat Robot Kit!
Difficulty: Unassembled version requires soldering of four wires (to motors, no circuit boards), plugging in connectors, and screwing wheels and lid in place (hex wrenches included). Recommended for ages 10+ (6+ with a parent).
Note: It is possible to assemble without any soldering by tying the wires to the motor leads.  It's just not as permanent.

The Viper kit comes with everything you need to get started in combat robotics.
- The custom-formed aluminum chassis has plenty of strength and space for additional components and upgrades.
- A 6-Channel radio transmitter and receiver pair leaves four channels free to add any active devices you desire.
- Two FingerTech "Silver Spark" 50:1 ratio gearmotors with 2" Lite Flite wheels provide both speed and pushing power.
- Two FingerTech "tinyESC" speed controllers translate the radio receiver commands into motor movement and provide 5V power to the radio.
- A sporty vacuum-formed lid keeps all the guts inside during a match.

The Viper kit is fully intended to be sawed, drilled, modified, and upgraded. Its base weight is only 325grams (11.46oz) leaving 129grams (4.55oz) for additional parts if entering the Antweight (1lb) weight class, or 675g (23.81oz) free if entering the Kilobot (1kg) weight class. (Weighed with 2x 9V batteries.)

Width: 17.1cm (6.75")
Length: 13.7cm (5.375")
Height (measured at rear when on wheels): 5.7cm (2.25")
Weight: 325grams (11.46oz) (weight is with 2x 9V batteries)
Large area of 16.8x6.0cm (6.625x2.375") to mount extra components, with a 3.2cm (1.25") tall block in the center to fit servos or weapon motors.

Kit Includes:
Transmitter: HK-T6A 2.4GHz 6-Channel transmitter. (Optional)
Receiver: HK-TR6A 2.4GHz 6-Channel receiver. (Optional)
Chassis: 17gauge (0.043") thick, 5052 alloy Aluminum punched and formed baseplate (pic). Has mounting holes for motors and lid.
Motors: 2x 50:1 Silver Spark Gearmotors
Motor Controllers: 2x tinyESCs translate the radio receiver commands into motor movement and power the radio receiver.
Wheels: 2x 2" Lite Flites are soft and grippy.
Hubs: 2x Lite Hubs are the lightest and easiest way to attach wheels to your motors.
Power Switch: A switch/charge jack that you unplug to turn on. Plug can be used for charging rechargeable batteries if you plan to upgrade.
Lid: Custom 0.040" thick vacuum-formed polycarbonate lid (pic) keeps all the wires and components inside the robot. (Not recommended to be the only armor against weaponed opponents.)
Screws: Four 2-56x0.1875" screws for mounting the motors. Eight 4-40x0.25" screws for fastening lid. Two 4-40 setscrews for Lite Hubs.
Two hex wrenches included for tightening screws and setscrews.
Instructions: Detailed instructions with many pictures and tips for getting more from your robot. (Download here)

-One or two 9V batteries (two doubles run-time). We recommend Duracell Procell (PC1604) for over two hours of run time and bursts of 12A (using 2 batteries). Procell's can run a HXT12K servo at 1.5A continuous (while driving) for well over 15 minutes.  (Robot matches are 3 minutes each.)
-Transmitter requires 8 AA batteries.
-An optional programming cable can be used to reprogram the functions on the transmitter.  Vipers come programmed for mixed driving (most common) but if you prefer tank-style driving you will need to reprogram.

• "Unassembled" comes as parts. Everything is ready for assembly but needs to be soldered and connected (includes detailed instructions).
• "Fully Assembled" comes as pictured. Battery connectors, on/off switch and motors are soldered in place. Lite Hubs are glued into wheels. Motors are mounted and lid is attached (includes same detailed instructions).  Just tighten wheels, plug in batteries and drive!

A number of people have asked how our Viper kit "Kitbot" did at RoboGames 2013. We are happy to report that it did very well!

Kitbot took 3rd Place losing only to 2nd Place "Captain Crunch" and 1st Place "The Bomb" (which was full of FingerTech parts, so we're not too upset.)

The whole tournament, Kitbot didn't take any damage at all and was ready to keep going - quite an achievement with the ferocity of bots at RoboGames!

Kitbot posing with its 3rd Place medal, the likeness of Tik-Tok, the mechanical man from the movie "Return To Oz".

Here are the videos of Kitbot's fights!

The Robotics User Group has completed a review and has given the Viper R/C Robot Kit the highest rating possible!  Follow along as they assemble the kit and give helpful hints and ideas for future upgrades in over 30 minutes of video.

3 Product Reviews - Average rating 5 / 5 (Show All)

Click to review this product

The perfect way to get started

- 27th March 2013

Bought one of these kits and modified it to use at my first combat event. It was the perfect starting platform for my first build! Best part, the components are of such high quality they'll find a home in any future bots I build!

Quality Components

- 16th May 2012

The kit came complete with everything needed to assemble a small robot platform ready to be customized with the weapon of my choice. Being a novice builder, I particularly appreciated the simple step by step instructions with pictures. Soldering the parts was easy enough and I took about an hour to assemble the kit but it could be done much quicker. The kit is solidly built with quality parts used throughout that fit perfectly. You can even see the attention to detail FingerTech takes in their products by the little tab they provide to help you remove the tape holding the body to the base. The finished robot seems to have a lot of power and maneuverability. There is plenty of room on the base to add a weapon. Battery life has been good so far however I think I will try upgrading to rechargeable batteries in the near future. This is a great product and is a great place to start if you’re looking for a kit.

Customer support has been fantastic with my Emails being answered promptly. The package came quickly e...

Excellent Kits!

- 23rd February 2011

The Central Illinois Robotics Club purchased 2 of these kits to use as interactive displays at events. Kids take turns going head to head in our combat arena and try to push their opponent into a pit. We needed a RC robot platform that was robust and able to survive hours of abuse at the hands of young inexperienced drivers. The Viper kits were a perfect fit. I was able to assemble both kits in about 1 hour and made a few wiring modifications to accept rechargeable 6V Nimh packs instead of 9V batteries. The Viper is quite a bit slower operating at 6V but this made it easier for young drivers to handle. We ran the robots for 4 hours straight and they performed very well! After falling into the pit countless times and ramming into the arena wall, neither showed any signs of wear and still work perfectly. We look forward to bringing the Vipers to future club events!

One suggestion: when mounting components inside the frame be sure to move them as close to the rear as possible so the majority of weight is over...

Click to review this product

Duracell "Procell" 9V BatteryDuracell "Procell" 9V Battery - 3.57 CAD
• These are the 9V batteries recommended for our Viper kits to provide over two hours of run time and bursts of 12A (using 2 batteries).
• Procell's (two in parallel) can run an HXT 12kg-cm servo at 1.5A continuous (while the Viper is driving continuously) for well over 15 minutes.
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