Mini Tatra project 8x8

[jorgeopesi]

A small tatra 8x8 project. I have only first and second drive and steer axles with suspension thanks to 4 rubber connectors, definitely my favorite Lego piece . My daughter woke up... .

http://www.youtube.com/watch?v=wL6Clgn55l8&feature=youtu.be

[Doc_Brown]

That is sweet! I have never seen such a small tatra before. Keep at it!

[TechnicMan73]

Very nice and compact!

[Someonenamedjon]

You should check out this one! http://www.eurobricks.com/forum/index.php?showtopic=79351

[jorgeopesi]

You should check out this one! http://www.eurobrick...showtopic=79351

I already made ​​two comments in that post, I don´t intend to do so small but thanks anyway, I love heavy machinery and Tatra trucks .

[Zerobricks]

All looks good, BUT the steering links are way too angled, the wheels will steer the first obstacle they meet.

[jorgeopesi]

A small price to pay for a perfect steering geometry, I have seen very few Tatra MOCs that don´t move the suspension and steering at the same time to be very difficult to isolate from one another, I try to get this on all my Tatras, none of them change the steering angle of the wheels when the suspension works.

[Tamas Juhasz]

Sounds interesting, I'm corious about the final model. Nice narrow suspension, this is proportional for the real one.

(but one thing: don't use SO BIG pictures. It takes hours to download, absolutely doesn't necessary that resolution)

Edited May 14, 2013 by Mbmc

[jorgeopesi]

Another video, for the steering I will use the small linear actuator with a small motor.

http://www.youtube.com/watch?v=FYWhMZiiTjI&feature=youtu.be

[Nazgarot]

I like the progress, and it seems very compact. I think this is going to be a great MOC. I do however agree with Zblj, those steering links are likely to cause problems... I also seems you have some gears skipping, but i guess you are going to sort that out.

May i suggest that you use double gears to the axles? If you add a 12 tooth gear (where you now are using half bushes) along with the 20 tooth gears you will get a much stronger transfer of power, as well as less problems with gears skipping.

-ED-

[jorgeopesi]

The problem with the links is difficult to repair, the truck is 11 studs between the wheels and each link is 6 studs... the only possible position is the first in the picture for the wheels are perfectly aligned when the suspension works.

Of course the skipping gears will be repaired. I don´t undestand you the last part, I'm using this technique and I don´t see where you can improve it.

[Someonenamedjon]

You can strengthen the 20 tooth bevel gears by adding a small 12 tooth one in front of it. (credit goes to effe)

http://www.flickr.com/photos/57623735@N08/8726731846/

[jorgeopesi]

You can strengthen the 20 tooth bevel gears by adding a small 12 tooth one in front of it. (credit goes to effe)

http://www.flickr.co...N08/8726731846/

No I can´t do that... look at the picture and think about it, (credit go to me ), work in small places makes you think a lot.

[Someonenamedjon]

oh...it would turn the black 12 tooth gear.

[Doc_Brown]

No I can´t do that... look at the picture and think about it, (credit go to me ), work in small places makes you think a lot.

Yes credit goes to you! that is a great design.

[jorgeopesi]

More little changes , may be too fast.

http://www.youtube.com/watch?v=q9OXxpRgGGE&feature=youtu.be

[andythenorth]

Too fast? Use the proportional speed controller (train remote)

The photo of the small turntable between steering axles showed me how to solve a similar problem I have. Thanks.

Edited May 18, 2013 by andythenorth

[jorgeopesi]

The small turntable is a good solution to eliminate pressure from the drive shaft, it was the first thing I thought when they went on sale these parts.

[MrNumbskull13]

I thought it was 8x8...

[jorgeopesi]

I thought it was 8x8...

You are right, the 10x10 was too easy and big I preffer to continue with the 8x8.

[Someonenamedjon]

The cab looks great! How are you going to cover up the back?

[Doc_Brown]

Really tidy design! great job. :thumbup:

[timslegos]

I love the cab design, but I think it would look better in a more flashy color than black .

tim

[Someonenamedjon]

I love the cab design, but I think it would look better in a more flashy color than black .

Grey?

[jorgeopesi]

I try with red too... anyway the cab isn´t finished yet, I think it has to be 1 or 2 studs longer. The back will be grey with 8110 panels and will have red or black connectors.