Lucullus

Front & rear wing are indeed 16stud wide, as I thought it would be covered by the "mirror-rule". The wheels outer center points are exactly 15 studs apart, but I have to admit that I didn't made the "box test". I just assumed that the Mustang rims only protrude one stud. If this is not the case (I can't check it at the moment) it has to be disqualified and I wouldn't have a problem with that because I am sure that a lot of participants kept their entries more thoroughly within the regulations and so it wouldn't be fair. You are right. I did a last minute change from rubber-band suspension to spring suspension and had to ditch the interior therfore. But I wasn't pleased with the interior anyway, because the real car has only one seat very close to the centerline, so it did interfere with the center differential and the HOG-steering, if built in the right position.

60. Peugeot 208 T16 Pikes Peak Features: - HOG steering - V6 fake engine - AWD with 3 differentials - suspension (live axle front & rear) Discussion Topic:

Hello everyone! For TC18 I tried to replicate the winner car of the 2013 Pikes Peak Hillclimb. Features: - HOG steering - V6 fake engine - AWD with 3 differentials - suspension (live axle front & rear)

Looking forward to the first BWE Moc with this new bucket.

One thing that has to be kept in mind is, that while the virtual pivot is always located at the intersection of the steering arms it doesn't mean that it will always be at the same place during the steering motion. The wheels won't turn on a circular path like they would do with a nonvirtual pivot. In the above picture this is especially evident if the yellow liftarm is turned so far, that it lies in one line with one of the black ones. In this moment the pivot point is on the 2l axle at the opposite end of the yellow liftarm.

Maybe you can use a mechanism with a plate that slides along the axis of the wheel, similar to the opening/closing of an umbrella or the collective control of a helicopter.

18. Propeller Launcher

Hello everyone. My entry for the Technic Contest 15 is based on the simple idea, that all Lego motors have a too bad power/weight ratio to be used to power a flying object, as long as they stay a part of this object. Therefore I used a Pullback engine to power a simple propeller to make it actual fly. As this alone would be a little too simple I decided to build an aiming/launching mechanism arround the basic concept. The functions are: -tensioning the motor by a worm drive -blocking/releasing the motor -rotating and tilting the launcher

Will a pull-back-motor-powered propeller launcher be allowed? Because the actual flying part will be small/simple and not be self-propelled.

Do the springs have to be compressed while connecting them to the chassis?

Some time ago a "mechanical animal competition" was discussed. Is there a chance that it will be revived? This would require a lot more mechanical creativity from the builders, because you can't just copy the real thing, as is possible with a car / plane.

Regarding #2, would the requirement "motorized" include a pneumatic animal with external motorized pump, or does it have to be directly motorized?

"Who will like this set? - builders looking for some breakthrough in Lego transmission design" and "Who won't like this set? - anyone looking for complex and realistic functions" sounds a bit like a contradiction. The Chiron's transmission looks like one of the most complex (and in some aspects, most realistic) Lego features in recent times. In my opinion at least more genious and less "obvious" than the lowered rear diff solution.

That should not be difficult, use a 90 ° stepper and add e.g. a 24/12 gear ratio.

Simple 5+R setup with only two axles, but still not very compact.