Bluetooth Rally Racer

Rally Racer is the successor of Rally Rac3r. The difference? This Rear Wheel Drive race car is a tremendous success. As complimented by Karl4123, this vehicle has “sleek and stylish looks.” It is geared up 36:12 or 3:1, and it is decently quick with decent torque. Many styling cues have been added. Why is there no InfraRed Sensor, you may ask! Well, thank you for asking! With the help of Builderdude35’s tutorials, Rally Racer drives via Bluetooth! Rally Racer’s Intelligent Brick acts as a receiver, and a second Ev3 Intelligent Brick is the remote! In this way, I am able to control Rally Racer from 200 feet away. I also incorporated bluetooth RC into prototype versions of my 2010 Cadillac CTS-V ReplicaContinue reading

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SharkBot – Robotic Shark

The SharkBot robot is built with Lego Mindstorms Ev3 and is basically a modified version of Builderdude35’s Timmyton 5.5 robotic shark. It features aerodynamic styling, mechanical upgrades, modified programming, and more (including both autonomous behavior and remote control function).  Continue reading

CTS-eV3 | Cadillac CTS-V Replica

CTS-eV3 is a Lego replica of the 2010 Cadillac CTS-V. With Rear Wheel Drive, lots of speed, and more than adequate torque, this motorized creation is like the real car. Having been over half a year in the making, there has been many trial-and-errors (including chassis, drivetrain, and exterior redesigns). But I am quite satisfied with the final outcome! CTS-eV3 has a 4.5:1 gear ratio (minus the differential), accomplished by driving a 36 tooth gear meshed with an 8 tooth gear in a unique setup. Actual speed is a few tenths under 4 Kph! This two door coupe has been relatively replicated, including the visible V8 piston engine along with the Corvette inspired supercharger!  Continue reading

Rally Rac3r series

After a bit of an absence, I am back with a technically failed project. Rally Rac3r was built to be very fast with its 9:1 gear ratio, but the resulting low torque prevented reaching top speed in little time. It features exhaust pipes, opening gulling doors, rally-worthy lights along with accessory roof lights, rear spoiler, return to center steering with gear rack, smooth flowing aerodynamics, and more.  Continue reading

Sup3r Stadium Truck | Short Course

This is a large short-course style stadium truck built with Lego Mindstorms Ev3. It features independent rear suspension and a front live axle with steering. One Medium Motor controls the steering, and one Large Motor drives the rear wheels. It also uses the InfraRed Sensor for Remote Control.

The reasons I used only one motor in this model are: 1. I was attempting to reduce weight, 2. The chassis of the truck is even studs wide, not odd; not allowing a very easy placement of two motors, 3. This vehicle was built as a test vehicle for the new 4-stud wide differential I got a while back but never used until now.

The drawbacks of this truck are: 1. One motor does not exert nearly enough power, 2. The old-type differential makes it impossible to not use more gears in order to transfer the power, 3. All the gears used decreases efficiency massively, 4. The rear independent suspension worsens performance, 5. A 3:5 gear ratio was used (a 1:3 would have been better), 6. The truck is very large, bulky, and heavier than most other robots that I have built.  Continue reading