Drive front axle for medium size trucks

[jorgeopesi]

Thanks to the new 42000 hubs, only 11 studs between wheels.

[olaf9198]

Looks good. What sort of u-joints do you use?

[martinnygaard]

That looks really compact! i'll try that on my Manitou - Thanks!

[jorgeopesi]

Looks good. What sort of u-joints do you use?

The only ones you can use with the 42000 hubs, Light Bluish Gray Technic, Steering CV Joint 32494.

[dhc6twinotter]

Thanks for posting this! I'm working on a new project that has 4wd and uses those wheels. I've been wondering how well the new hubs fit in those wheels, and it looks like they fit better than I would have thought. Steering angle isn't too bad either.

[Zerobricks]

Yes, they are good, but their steering angle isnt so good... I still prefer the use the thing triangles and the gearbox part that came in 8043 to make it same size, but with higher steering angle.

[jorgeopesi]

Yes, they are good, but their steering angle isnt so good... I still prefer the use the thing triangles and the gearbox part that came in 8043 to make it same size, but with higher steering angle.

You will have more angle but the pivot point will be one stud away from the wheel, in the end one compensates the other I think. The fault I see in this system is that the 3 axle can leave the differential, if you don´t use a differential with a 8 axle you solve the problem for example in small trials trucks. Dhc6twinotter I am here to post everything I can think of , sometimes good, sometimes bad.

Edited March 20, 2013 by jorgeopesi

[piterx]

this one i was making works fine too...even if it's not finished yet, it was just a quick test :D

[jorgeopesi]

It is good but the problem I had when I used this system is that wheel easy leave the u-joint and if you use a 5´5 axle to prevent, it is very ugly , also you still having the pivot point a stud wheel farther than I.

[dhc6twinotter]

Yeah, I like that the pivot point is so close to the wheel. The moc I'm working on has a drive and steer axle with dual tires on each side. The closer the pivot point to the tire is, the better. I don't have that much of my LEGO with me at the moment, so I've just been using MLCAD to design my moc. I haven't checked to see if any of the special hub pieces fit those wheels, so it's nice to see that the new hub pieces may be a good solution.

[jorgeopesi]

Yeah, I like that the pivot point is so close to the wheel. The moc I'm working on has a drive and steer axle with dual tires on each side. The closer the pivot point to the tire is, the better.

Of course with two wheels on each side the pivot point it is important to achieve a smaller travel on wheels. Another system I used was this, the fault was that the wheel easy leave but the pivot point is near to the wheel too, I used the Technic, Steering CV Joint Axle 92906 on wheels.

[Someonenamedjon]

Very compact, great work!

[timslegos]

Agreed, looks like a very compact solution.

tim

[GuiliuG]

I had exactly the same idea, jorgeopsi one month ago,but as I still don't have these new hubs, I haven't be able yet to test this ! Unfortunately, due to the design of these new hubs, it's obliged to use thin liftarms which weaken probably the structure.

[jorgeopesi]

You are right with the thin liftarms, I don´t usually work with this scale so I did not notice before, anyway I like to tell what I find if anyone can help, maybe the next can discover the way to improve it.

[Paul Boratko]

Great idea..! I had set up something somewhat similar to test the steering radius of the hubs/cv joints to find the sweet spot... If I remember correctly if you place a black pin in the second hole on each side of the 11L liftarm, it will stop just before the binding begins between the hub and cv joint...

[jorgeopesi]

I had not seen your post, I love these tests we would have to make a thread with all that we think, surely could help many people.

[jorgeopesi]

Another axle, even one stud narrower with a classic limitation preconception, the differential . It isn´t good to use so many pieces to win only one stud, but can be done and I spent a pleasant half hour.