![]() In this case though, he couldn’t find the right thing, so decided to create one himself. Liam normally starts by looking through the Scratch library for a pre-made background that he likes. In a similar way to Liam’s volcanic eruption project, the background for this game is hand-drawn. Rubber band holding the wheel centred Setting the scene for the racing car game in Scratch The road background The benefit to the racing car game is that the steering wheel will always prefer to drive straight, keeping you in your lane. The second function of the rubber band is that it helps the steering wheel return to upright when it’s released. With the rubber band secured around the pulley wheel and the top of the frame, it keeps the shaft in place. Without it, the shaft would drop through the frame and get stuck. Where the shaft connects to the frame, the rubber band is a critical component. The steering wheel often lets go of the shaft Fortunately, it doesn’t affect the interaction between Lego Wedo and Scratch, so the race can just keep going. On a regular basis, the steering wheel detaches from the shaft, and Liam finds himself driving in mid-air. ![]() It fixes to a round 2×2 brick, which is a fairly small connection doing a lot of the heavy lifting. The connection of the steering wheel to the shaft is still a bit insecure. Liam is a fairly enthusiastic young driver, and hasn’t done any harm to the steering wheel yet.Ĭonnecting the steering wheel to the frame With the extra bracing, it works really well. You’ll see in the photos below that it’s been braced front and back in several places. Where the Technic bars and right angles are attached with pins, they were quite loose and the steering wheel didn’t hold its shape. Liam did his best to follow Mi 2 Tom’s build process, and it looked very similar, but something wasn’t right.
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