LEGO 4WD vehicle with PF

My first real 4WD vehicle with 2W steering.

Category:

Science & Technology

Tags:

• LEGO
• PF
• power
• functions
• technic
• 8878
• battery
• xl
• motor
• rtc
• return-to-center
• steering
• 4wd
• miklosrabi

[v4trogaSci]

Well, the building challenge is: (que the drums...) To create a PF car / vehicle that uses Ackerman's steering geometry. It works like this, the inner wheel turns more then the outer one, and vise-versa.

It helps by lowering the friction on the outer wheel while the car is turning.

[MiklosRabi]

Now I'm working on a smaller, fast FWD car. Probably later on I'll try to put together an Ackerman setup, But I'm afraid it would be too big to my taste.

[v4trogaSci]

Looks great! And as I can see, it also works great!

Just one thing that I wanted to point out, you don't really need a central diff if the front and back wheels are the same size, but the diff still helps.

Also, are you up for a small building challenge?

[MiklosRabi]

Yes, you are right, the central diff. is not necessary. But I would have liked to know how it works in this model... :o)

Building challenge... What do you mean?

[salvodipter]

nice how old are you?

[legostuffguy]

ackerman stering is easy with suspension, my lego snowmobile has it, along with rear suspension.

[v4trogaSci]

Well, that is not completely true, in your video, I already see that you have created the ackerman steering geometry. I didn't tell you the whole challenge, the challenge is to build a car with ackermann's steering geometry and with suspension. But as you already sead, you're busy with a new project, and I really can't wait to see it.