[MOC] Max's Tatra 8x8 Trial Truck

[MaxSupercars]

Epic! The photos are magic! I saw your site and there is definitely a lot of skill behind that 5D!

The Tatra performs very well and I think that medium size builds like this are far better as power to weight is at an advantage.

How much worse do you think the performance would be with only 2 receivers?

Thank you.

Yes the photos and focus videos were made with Canon 5D Mark III and I used mostly the EF 70-200mm f/2.8L IS USM Lens for better perspective. The videos of climbing Tatra were made with my smartphone...

For video editing I used the Adobe Premiere which I can recomend to all. I learned to use it in one day. It got very good user interface.

Yes I decided to build the smaller Tatra then Madoca1970 awaiting better peeformance what has been confirmed immediately by itself.

After my tests and studying of philo pages if you use the XL or L motors on maximum load, there is 1 IR receiver per XL/L motor needed. You need cca. 1A at max load. 1 LiPo can then feed 2 IR receivers. Later I replace the IR receivers with SBrick which can feed 2 XL motors at maximum load... It was horror to film the Tatra under the sun when the IR receivers were lit by the sunlight. Smartphone in one hand, IR controller in other and suddenly random motor felt out. It cost me a lot of nerves... :D

Max

Edited December 12, 2015 by MaxSupercars

[9 fingers]

Yes, its fantastic model. But i looked a picture from INVERNO right now. Confused i am. Hmm.

[MajklSpajkl]

@9fingers: Confused?

I think Max outdid my truck by far, especially performance-wise. It is true mine had half of those motors ;-). His steering is far more reliable than mine was. I really like all the details all over the truck and lime, LIME!!! I love it!

Really good presentation Max and a truck well done! I see you changed the setup of the motors. Looks (and works) much better now.

My only "disagreement" with your model would be a bit to much distance between the axles for my eyes. But that is just a minor observation. Otherwise I also prefer this size of trucks comparing to those with unimog or crawler tyres.

Keep up the good work.

Edited December 12, 2015 by MajklSpajkl

[MaxSupercars]

Yes, its fantastic model. But i looked a picture from INVERNO right now. Confused i am. Hmm.

9fingers,

I do not want to glorify me and my model with this topic. It's presentation of my model so do not see any other sense of this presentation.

I have seen Majkl's Inverno. It's great, I like it very much, the color scheme is also great. The Tatra solution that he used can be found in many other Lego Tatras. So I do not know who of them used this solution as first. Majkl did a great job but when you look closer at my Tatra is similar just in system of used 12t gears. The halfaxles are completely other as the whole chassis and drive and was completely developed during my testing process to suit my needs. On first 2 axles I use also LA holders instead of Double Pin Connector Toggle Joint because this offered me better option for my needs. When I got time maybe I disassemble this Tatra in modules and you see more...

Max

[MaxSupercars]

@9fingers: Confused?

I think Max outdid my truck by far, especially performance-wise. It is true mine had half of those motors ;-). His steering is far more reliable than mine was. I really like all the details all over the truck and lime, LIME!!! I love it!

Thank you Majkl. I was waiting for your comment all the time because we have written to ourself in your Inferno & Inverno topic. I like your MOCs a lot :)

Yes the steering is other. I tryed also your solution which I have seen also by other Tatras. It moves freely a lot by itself and causes unneeded movements. It make it's work but bump steer was to big. My solution is not so nice but is more direct and more heavy duty.

Really good presentation Max and a truck well done! I see you changed the setup of the motors. Looks (and works) much better now.

Yes the chassis is completely other :)

My only "disagreement" with your model would be a bit to much distance between the axles for my eyes. But that is just a minor observation. Otherwise I also prefer this size of trucks comparing to those with unimog or crawler tyres.

Yes you're right. On one side a liked this longer Tatra more and on other side I must do it so. As you know the halfaxles are connected and rotating on driven central axle what causes friction by suspending. As I said this Tatra was developed as heavy duty Tatra to climb on obstacles higher that model itself. By full suspension was friction quite big. I minimized it by making of wider halfaxle arms to 7 studs. This minimizes the friction but there is more space for each halfaxle needed in longitudal direction. + there are needed 2 studs between axle modules to connect the central driven axle. So the final lenght of the model can not be shorter.

*****

Following text is written general not meaned to you. :)

There are many tests and try outs behind this model and this is not a copy of any others model.

Tatra was also not developed to compete with any other model. There was also no objective to use many XL motors to make this model more interesting. The reason of 4 XL motors is described in my first topic post. When I put down all the body elements and gear it down there could be also 2 XL motors enough. But I wanted to use nice details and make it fast.

Keep up the good work.

Thank you ones more... :)

Max

Edited December 12, 2015 by MaxSupercars

[9 fingers]

Hello Max.

I do not thik you are steling or anythin else off the inverno. And yes i judget to fast your underwiew from your tatra. It is realy unike. Respect.

And when i read your last post, i thing You doo understand technic staf more then the TLG experts. For me you are a masterbuilder. Proved with this tatra.

With respect!

Best regards,Valter

[MaxSupercars]

Valter, I have overseen your reply so I write now.

Yes the Tatra developed I on myself from scratch. And no I'm not a masterbuilder. I just make the same as you and other... enjoying Lego building. :)

Thanx.

Max

[BusterHaus]

Max, I missed this thread somehow until now. This is a fantastic build. It looks rigid, fast and the steering solution is incredibly quick and strong (I wouldn't mind seeing more pictures of it). Congratulations on a great MOC!

[Sylvian]

Very nice machine! Defenitely an example for me when i will give the tatra chassis a shot,.