Hi, I made a small MOC to try out the BuWizz I got recently.

It powers a servo and a buggy motor. To be honest, this thing is too light for this power :-)

it drifts non stop, even in the "slow" mode. "normal" is a lot of fun, "fast is almost impossible to control. "Ludicrous" doesn"t work: the motor jams immediately.

I ordered some bigger wheels, and I'm looking around second hand sites for bulk lego technic parts.

What is an ideal power/weight ratio to get MOC's as fast as possible, but still controlable?

A few suggestions to make it more steerable:

• Make the wheelbase longer with the current wheels
• Add a differential to drive the rear axle
• Try increasing the width between the wheels, although I'm not sure how much effect that will have.

By the way a lot of the steering can be solved by proportional control using sliders in the BuWizz app on your tablet or phone.  Instead of moving the slider up all the way right away, try increasing the power gradually.

Nice and lightweight! Try to gear down with different gear combinations and try to use thicker wheels for the ground friction.

I made some changes: I changed the way the motor drives the wheels: I added a differential and changed the gears . I also made the wheelbase of the back wheel 2 studs wider, and placed the back axle 2studs backwards, enlarging the wheel base.

The result is that it still drifts, but it is more controllable :-)

Because of the changed gears, I can now also use the "ludicrous" mode of the BuWizz.

I really should try it out on a parking lot or something, I want to see how fast it goes in a straight line :-) (my apartment is just too small to test it out)

Edited May 23, 20204 yr by Jimrask
fixed picture link