u/onitsuker

Cada servo or mould king for rally🤔

Since I'm working on this rally project, steering precision is key. I'm choosing between the new Mould King and CaDA servo motors.

​My main concerns are:

​Centering: Which one returns to zero more accurately?

​Torque: Which can handle the stress of high-speed turns better?

​Speed: I need fast response times for rally stages.

​What’s your experience? Which brand has better build quality lately?

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u/onitsuker — 6 hours ago

Need help with torque vectoring / electronic diff on Mould King 6.0

Hello all desinger lego!

So I built a rally-style LEGO car using two buggy motors, each directly connected to a rear wheel with no differential, and I’m using a Mould King 6.0 battery/controller. On a straight line it’s fast and powerful, but as soon as I try to turn, the handling gets really bad — the car understeers, one wheel slips, and it feels very unstable, especially at higher speeds. I started thinking about making some kind of “electronic differential” or torque vectoring, where when I steer left the left motor would get slightly less power so the car can rotate better, and the same idea for the other side. The problem is that the Mould King 6.0 app seems very limited — I can only control throttle and steering, but I can’t find any way to mix inputs or link steering angle to motor power. So right now it feels like I’m stuck between bad handling, trying to manually control both motors which is not practical, or switching to a completely different control system. Has anyone managed to do torque vectoring or an electronic diff with Mould King 6.0, maybe using a third-party app or some kind of workaround? Any advice would be really helpful😅

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u/onitsuker — 21 hours ago