Rocket League - Free to make RC Octane!

A huge RC Car that uses an Angle Grinder, with an Octane body from Rocket League!

This took me about 3 months, but totally worth it! I love playing around with Angle Grinder motors, the torque is just amazing. I tried to finish the project before the RLCS finished, but could not find the time.

I hope all the Pro Rocket League Players will enjoy the video...being a Rocket League gamer myself, and still trying to find the Grand Champ spot, I really enjoyed making my very own Octane!

Software
* Model Design: Autodesk Fusion 360
* 3D Print Slicer Software: Simplify3D
* Coding Software: Arduino IDE
* 3D Printer Used: Creality CR-10

Code and Schematic

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INSTRUCTION AS PER VOICE OVER:
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Measurements
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Simply take the measurements from the design and mark it down on a piece of wood.

Steering Servo
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After cutting the Steering Servo rectangle. Screw the servo in securely and make sure it does not have any space to move.

Steering Arms
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Still following the measurements, drill 2 holes where the front wheel bolts or rods will be.
Place your servo wheel and 3d printed steering arms and make sure it all matches up before you continue.

Front Wheels
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As previously stated, I did multiple iterations of the steering mechanism.
Here is one of my previous approaches, where I use a smooth rod and steel bracket to mount the bearing.
The latest mechanism uses a simple 8 millimeter bolt and a 3D printed part to mount 2 bearings.

Rear Wheels
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After drilling the 2 holes to fit the rear wheel bolts.
Make sure you have all required rods to mount the rear wheels.
I have improved the rear mounts to avoid the unwanted vertical movement by removing the suspension.
When I mounted the Angle Grinder and applied the rubber band tension to the rod connecting both wheels, the results were terrible.
I simply could not make it work with the suspension, so I had to remove it.

Fit the horizontal wheel rod connecting the rear wheels in place. Make sure you don't have any play in unwanted directions.
Do a quick test with the 3D printed rims and make sure that all 4 rims are equally aligned, and can rotate with no extra friction.

Electronics
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The electronics are quite simple.
I used an Arduino Nano as the control board.
A motor controller to adjust the motor speed. The motor controller is using a Potentiometer, so I designed a little servo mount to adjust the potentiometer with a servo.
A standard Relay to set the direction of current, so it can go forward or reverse.
The steering servo is controlled with a Flysky transmitter and receiver. The receiver is connected to the Arduino board to read values and parsed, to control the servo angles.

I tried a couple energy sources to power the angle grinder. I finally ended up buying the 18 volt grinder battery pack, because the weight of the 12 volt bike battery was way too heavy to reach greater speeds.
The arduino and servos are powered using 2 eighteen 6 fifty batteries. You can use any other sources that will be sufficient, just keep in mind that strong servos can draw a lot of current.

Wheel Coating
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The wheels are done by using foam strips as the main material, and coating it with rubber sealant.

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[soppingclam]

Pretty rad start. Add some coloured nitrous for boost with the option to fire backwards or straight down into the ground. Heck, build an electrified magnetic floor where you can fire down magnets to repel and boost off the ground.

[kskeedits]

Someone s playing Rocket League on the laptop in the background on 7:50 lmao 😂

[CLOSERocketLeague]

I was hoping someone build a lifelike octane to ride in. Found this. Still like it. Great build

[WherdTheMuthuFuginCheezeGoAt]

This build is awesome but the height needs to be brought down a lil bit

[dianaisabelgomezherrera]

WoW hey make more Cars of rocket league

[legomasterpl]

little too high but very cool and congratulations for that u make it by your self in 100% - chassis/bodywork etc - thats cool

[vegeta]

I was hoping someone build a Car from Rocket league in real life thats really working with Jumping and boost and stuff

[graywoodson]

Very interested in if you improved steering and would love the files

[Finehera]

Very nice car, its indeed underrated!

[adamilconich]

How do I get the fusion model? I’m trying to make an octane that can fly exactly like in RL and this would be the perfect little head start lmao. Great Video!!

[noahhutchison]

This is awesome! I’ve been sort of planning an Octane build, but I want to include some of the in-game mechanics like drifting and air rolling. I have pretty solid ideas for how this would be done but I’ve never really worked with electronics, just CAD modeling and some 3-D printing. I’m an Electrical Engineering student but haven’t even had circuits or electronic systems courses yet.. so basically I don’t know if my ideas would pan out. I think it would be a good learning experience though. If you ever felt like it, I’d love some feedback once I really get working on it, since you clearly know what you’re doing.

Was really impressed with this though, the final product looked fantastic.

[gruby]

He's driving just like my champ 2 teammates

[mantasradzevicius]

Cool project, but next time you should consider changing suspension, that kind of suspension you did tbh doesnt do anything try something like "double wishbone",
place bearings inside the wheel (at least in front) or place bearing as close to a wheel as possible. Im surprised that the car is sooo slow, maybe its because torque ? but angle grinder has plenty of torque, maybe bad power supply, driver, h bridge, mosfet or jfet idk (what you using) or pwm code? battery ? maybe belt starts slipping under load, "btw add tensioner in next version"?because im guessing your car weights below 5 kg so if grinders power is >100W you should reach speeds like 10 m/s or ~40 km/h in few seconds. And BTW no suspension is much better than this type of suspension, trust me.

[MarkerD]

hahaha great project but octane should have way more power and a rocket booster :p