Didumos69

It's taking shape! You redid the front suspension as I see. A very intricating build so far. I'm following this project with great interest.

Paul Boratko did something like that: https://www.facebook...ext=0&width=560 Source: https://www.facebook.com/crowkillers/

It looks like a mobile climate controle for a small country :wink:

I can see the fun of such creations too, also for children. What about a wind-up mechanical ant? This steam-punk thing reminds me of a French street theatre company that makes giant theatrical machines (Compagnie La Machine):

Absolutely amazing...

Maybe this is of interest to you: http://www.tippcityscience.com/STEAM/Images/Mechanism

Very goo idea! In this line I would like to see a steam locomotive with its complete drive train - including reverser and valve gears - visible.

I did some math on the steering angle. The half stud travel of the gear rack (measured from the center) results in a max steering angle of 14.4°, theoratically spoken that is. Slack dictates us to make rough estimations only. Let's take it positive and give it 15° max steering angle. I've seen MOCs with less. Not to add to negativity, just trying to find facts. Anyone should judge for him-/herself whether this steering angle suits the car or not. (Measurements from heart-to-heart)

Sorry didn't mean to reply. On my phone, I always press 'Quote' to get a YouTube link...

Another very nice example of a relatively small build with many nice features :thumbup: !

I am more and more starting to appreciate the smaller highly functional builds. This one looks very very good :thumbup: . Would also love to see a video.

The new Porsche rims allow the wheel hubs to be inserted deeper than in existing rims. This brings the steering axis closer to the center of the wheel, hence a better steering offset.

I was thinking the same thing - more or less - also hadn't seen this thread before. I especially like the multitude of variations that are possible with this concept.

That would be a good reason to buy the set after all :wink:

I wouldn't have found these interesting builds without this post and I'm happy to know about them now. I know some people that will be very happy with this kind of sets as a present. So I have no problem with these kind of posts. Maybe a bit off topic, but it also makes me realize once more why I like Lego Technic so much. It's the fact that you are forced to compose your builds from a more or less constant set of basic building blocks. That makes building a brain game. I remember reading an interview with you - Paul - where you compared building supercars with chess - "you always have to think 5 steps ahead". I like that comparison and I also like to look at designers like Madocca1977, Nathaneal Kuipers and you - and there are more - as top class chess players. Although I see myself as a mediocre player, I like the idea of being part of something that can rise to a level that almost nobody can comprehend, just by playing the game.

Okay, so it was a study. Nevertheless, the 'weird' suspension is certainly interesting and makes me curious for that supercar you have in mind.

I like the simplicity. The suspension is very interesting, but personally I would never settle for this amount of toe-in and toe-out. The title says prototype. Do you plan to develop it further?

I second every word of the above. I would also like to see a rally-inspired car. Something with substantial ground clearance, substantial suspension travel - maybe even adjustable suspension - and at least 30 degree steering angle. Something like the Lamborghini-based Italdesign Parcour.

In the Netherlands we had backwards driving races with cars that had continuously variable transmission :laugh: This transmission was also fully operational when driving backwards. It must be over 35 years ago. Link:

Pizza slicer LXF-file here.

That would be the same as for the 11949 wheel hub, but the hub itself does not restrict the steering angle, at least not severely. When you apply drive, the integrated CV-joint will be the bottleneck. CV-joints don't support much steering angle either, which has been one of the reasons for me to leave the standard Lego wheel hubs for what they are. Here an image showing the max angle of the CV-joint (it won't even rotate smoothly under this angle).

Thanks for the images! Could you show image number 4 too? That one shows the difference in width very clearly.

Thanks! The middle one (22969) is 46mm wide, but with a deeper offset. The new rim appears to be equally wide. And when looking at the inside of the new rim (first photo), my impression is that there is no axle hole at all (if there would be it should be visible between the 2 visible pin holes at the inside of the rim).

Speaking of wheel hubs, if the new rims indeed have one stud more offset, then many custom wheel hubs using to hold the axle may be reconfigured to use your turn table-based wheel hubs without changing suspension and steering geometry. Once I'm absolutely certain that the offset difference for the new rims is one stud, I will surely be looking out to buy these rims as well as your turn-table hubs.