Touchobut Posted November 21, 2015 Posted November 21, 2015 (edited) Hello all, I want to present you my first MOC: it's a red Tatra t-813 8x8, short cab, Dakar version. I wanted this truck to have either great look and performance. That mean that's not a trial truck, but it can of course ride over little obstacles! I have imposed upon myself theses constraints: the truck needs to have 81mm wheels and be propulsed by only one XL motor. It steers with a M motor. It weights 1,83kgs ! Propulsion: XL 12/20 - 8/24 - 12/12 pr 20/20 - 8/24 wheels. Steering: M 8/40 - 12/rack and links for first axle, - 12/20 - 16/16 - 12/rack and links for second axle. The turning radius is pretty good compared to the truck size.. The suspension is provided by 8 springs, one per wheel. Yellow springs for front axles and gray for rear ones. As you can see, the cab is largely copied from Madoca's Tatra, and this for one reason: this cab is is the best I have seen in studless ! However, I allowed myself to adapt it to my scale, and I modified it. I have added some details for example position lights on the bumper or blinkers on each side. On the frame I built a sort of Dakar rollcage. I have tried to do my best in building details like the rear bumper and fuel tanks. Thanks for reading! A little and bad quality video: http://www.youtube.com/watch?v=5hdtrrxfSY8 Credits: Madoca 1977 for the cab Nico71, who inspired me to build the axles and the frame. Comment's are always welcome Edit: building instruction post #22 ! Edited February 14, 2016 by Touchobut
THERIZE Posted November 21, 2015 Posted November 21, 2015 Very, very nice! The steering is pretty good like you said!
SevenStuds Posted November 21, 2015 Posted November 21, 2015 It was a good idea to look at other great MOC builds and incorporate what you liked in either. Nice result you have there!
HorcikDesigns Posted November 21, 2015 Posted November 21, 2015 This one is (in my opinion) the best T813 I have seen so far. Not from the point of view of maximized-performance addicted truck trial driver, but seeing it with eye of model builder, it is very good job. Madoca's 813 is maybe a bit better in terrain, and there are nearly no unnecessary friction loss of power in the drivetrain, but on the oter hand, the proportions of cab compared to the chassis are slightly unreal.
Zerobricks Posted November 21, 2015 Posted November 21, 2015 Well done, looks really good! Though real tatras have no portal hubs, but planetary gears.
GBC Master Posted November 21, 2015 Posted November 21, 2015 Very nice! I really like those tires on the truck :-)
Awaken_M1nd Posted November 21, 2015 Posted November 21, 2015 Very nice Tatra. Excellent looking in this scale.
2LegoOrNot2Lego... Posted November 21, 2015 Posted November 21, 2015 Wow, excellent build, really done well!!! Both the functionality and the looks are phenomenal! Would not use those "old" wheels much, but excellent choice for this machine!!! :thumbup:
jorgeopesi Posted November 21, 2015 Posted November 21, 2015 I have those wheels too and I never thought that are so well, nice Tatra .
agrof Posted November 21, 2015 Posted November 21, 2015 Good work, I like the drive chain a lot! The only thing what i don't dig in the name: why dakar (speed race) version, it is a trial (crawling skill) truck. Is it meant for the cabin's look? Don't get me wrong, it is not about the value of your moc, just curiosity from my side.
Touchobut Posted November 21, 2015 Author Posted November 21, 2015 Thank you all for your comment, it always make me happy to read feddbacks Both the functionality and the looks are phenomenal! I'm glad to read this, because that's exactly what I want to do with this MOC ! Just want to sacrificed neither look nor performance. Good work, I like the drive chain a lot! The only thing what i don't dig in the name: why dakar (speed race) version, it is a trial (crawling skill) truck. Is it meant for the cabin's look? Don't get me wrong, it is not about the value of your moc, just curiosity from my side. The Dakar designation refers to the rollcage on the back, it reminds me a truck in a game called "Rigs of Rods": But in fact that's true, it looks like a trial version. I am making building instruction I hope you will enjoy it!
MaxSupercars Posted November 21, 2015 Posted November 21, 2015 (edited) Quentin, I like Tatras a lot! Very good job! I like different approach of the technical details. I like it. I post also my Tatra soon... :) Well done, looks really good! Though real tatras have no portal hubs, but planetary gears. The new Tatra 810 got portal hubs called TATRA-RIGID. Others got wheel reductions as standard or optional. Tatra 810 front axle: Tatra 810: https://en.m.wikipedia.org/wiki/Tatra_810 See pictures (czech text) http://www.tatra.cz/proc-tatru/technicka-koncepce-tatra/unikatni-podvozek-t-810/ http://technet.idnes.cz/podivejte-se-na-vyrobu-a-testovani-vojenske-tatry-810-nastupce-vejtrasky-1o2-/tec_reportaze.aspx?c=A081022_120822_tec_reportaze_rja Max Edited November 21, 2015 by MaxSupercars
jorgeopesi Posted November 22, 2015 Posted November 22, 2015 Tatra-rigid , if Unimogs will use Tatra axles would call them Unimog-nonrigid , I love Tatra and his sense of humor.
LEGO Train 12 Volts Posted November 22, 2015 Posted November 22, 2015 Great MOC and amazing use of the old technic XL wheels!
MaxSupercars Posted November 22, 2015 Posted November 22, 2015 Tatra-rigid , if Unimogs will use Tatra axles would call them Unimog-nonrigid , I love Tatra and his sense of humor. I don't understand what do you mean? Max...
jorgeopesi Posted November 22, 2015 Posted November 22, 2015 I don't understand what do you mean? Tatra calls Tatra-rigid to a normal portal axle, frequently used by unimogs and other trucks.
MaxSupercars Posted November 22, 2015 Posted November 22, 2015 (edited) I don't think that Tatra want to say that they make something special or unique and that they are the only one who build it. They called it TATRA-RIGID to differ this model from common Tatra concept with swinging half-axles. Tatra makes very good trucks and should not be underestimated. Max Edited November 22, 2015 by MaxSupercars
jorgeopesi Posted November 22, 2015 Posted November 22, 2015 I don't think that Tatra want to say that they make something special or unique and that they are the only one who build it. They called it TATRA-RIGID to differ this model from common Tatra concept with swinging half-axles. Tatra makes very good trucks and should not be underestimated. Max I think my MOCs tell better than me my devotion to these trucks.
MaxSupercars Posted November 22, 2015 Posted November 22, 2015 I know your Tatras. They are very good... :) Max
Touchobut Posted November 22, 2015 Author Posted November 22, 2015 Building instruction here: https://goo.gl/photos/KDaVV6wXCfMGKbyP9 My first one so it's possible that you will find some mistakes, however if you succeed the building, I will enjoy in return some pictures of the truck ! Don't hesitate to write a little review then
MaxSupercars Posted November 22, 2015 Posted November 22, 2015 (edited) Very good work! What is the max. steering angle of the front wheel? Max Edited November 22, 2015 by MaxSupercars
agrof Posted November 22, 2015 Posted November 22, 2015 Thank You for the instructions and for the answer regarding the Dakar thing (I didn't know this game) ! I might give a try to build. Do the 81,6 mm balloon tires fit on this chassis?
Touchobut Posted November 22, 2015 Author Posted November 22, 2015 Very good work! What is the max. steering angle of the front wheel? Max I haven't mesure it sorry, now the truck is disassembled Anyway I have to be honest: I have setup the truck with a very good steering angle, but in extrem positions (steering and suspension to the max) the front wheel might slip onto the frame (that's not embarrassing anyway). To fix it you just have to enlarge the steering angle by putting stops on the first rack. Thank You for the instructions and for the answer regarding the Dakar thing (I didn't know this game) ! I might give a try to build. Do the 81,6 mm balloon tires fit on this chassis? Yes you can put these wheels, but it will be less pretty for sure However don't know if they will slip more or less in extrem position than regular wheels. You have to try.
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