Cruise control / limiter

thingiverse

I recommend using PLA for its strength concerns. You won't want the print in the way of your hand, so it needs to be thin, which can make the screw a little more delicate. When driving my moped (a Tomos A35 Standard Classic) with a speedy exhaust system, I find it quite annoying to manually adjust the gas to match speeds with friends. I've also read that not giving full throttle can save up to 20%. It was worth experimenting to see how it worked out. To use this limiter, you need to attach it to the gas from below so the gas cannot be fully opened. This works well as a speed controller. Alternatively, you could attach it from above but don't screw it in too tightly – that would be very risky because you'd have to push it back before braking. For the screw, I used polyScrewThread_r1.scad from Aubenc's design: http://www.thingiverse.com/aubenc, which can be found at http://www.thingiverse.com/thing:8796