Sam42

A rare subject matter but tackled with skill, i just had to look through all the published pics when i spotted it on brickshelf the other morning whilst riding the tram into the city centre... great realism using a technic building style.

very nicely done.....

Have you took most of the pictures down? all i'm seeing when i click through is one picture "turntable_selfmade.jpg" showing what looks like a sealed cartridge bearing contained inside a lego structure....

Such an epic build and great subject matter! nice to see a euro truck!

It's a shame but i had a feeling hydraulic steering wouldn't work out... How does it function pneumatically?

so good i had to have a go myself! 21012011309 by sam2442, on Flickr 21012011310 by sam2442, on Flickr 21012011308 by sam2442, on Flickr couldn't manage a portal set up but made quite a nice planetary reduction hub, got the steering centre down to one stud from the mounting holes on the turn table, new cv joints would bring this in one stud giving an even better steering centre, need to get four of these built and tested!

Cheers grohl! for some reason there are a lot of lego unimogs once you start looking, my first truck trialler was a unimog! unimog1 by sam2442, on Flickr have you seen lomero's mog? a very nice take on the harder to pull off curvier unimog!- Unimog 416 by lomero, on Flickr

Those hubs look strong with the frames around the axle ends, is that how you eliminated the gear slip? and grohl who's blue unimog is that? I've seen it before on czech tt pics on bshelf but never managed to track any details, Regarding my timber crane in progress it's either gonna end up as a long logger with a dolly trailer riding piggy back on it or as one of the truck mounted separate timber loading cranes that seem popular in sweden, but i can't decide which! Still waiting til i have the cash for a lego direct order to finish the chassis and the crane's gonna take a while to refine once i've got it piped up so i have a long time to make my mind up...

i like the direction.... There's something on my work bench at the moment being developed that would look nice on the back of a 6x6 unimog- IMAG0005 by sam2442, on Flickr

australian army wrecker? I've looked for chassis illustrations for the 6x6 mog but really struggled to get anything useful....

I'd say 6x6, for the wow factor! It's true it's a fallacy that 6wd will give more grip than 4wd, more flotation, yes, grip, no. However a 6x6 mog WILL give you a longer wheelbase improving hill and step climbing capabilities at the sacrifice of turning circle, Howabout a slightly non prototypical 6 wheel drive 4 wheel steer with a steering rear axle for the best of both worlds?

The body looks nice, even better with the windshield added, you've captured the lines of the original nicely. i've had similar problems with the landrover i built, especially in the old single driveline chassis with the higher centre of gravity. You're always gonna get torque twist like that with a single driveline live axle chassis, in the new chassis with the counter rotating driveshafts this is eliminated, but even the with the battery sat as low as possible, behind the front axle the c.o.g is too high... best i can get out of it is about a 45-50 degree climb before it slips or flips... i think i'm gonna have to sacrifice a nice short wheelbase and go 6x6 for my next truck....

from the outdoor test it looks like it functions well! i like the two speed gear box because it equated nicely a 2 speed splitter which you could get on a unimog drivetrain...... and you could use the super low ratio for hillclimbs or pulling tree stumps out! The progress on the body looks good but i'd prefer a unimog 401 cab!

ahhhhh i knew someone would beat me to it I was gonna look at putting those new mini LAs into steering system as soon as i could get my hands on them...... nice looking steering!

Very nice, great implementation of the octan colour scheme! video coming soon?

Those big home-made LAs may not be that prototypical but they sure are powerful! i love the way the excavator handled that big rock with ease, try that with 8043!

*digs out hub assembly to check angle* even with limited range they look like an interesting alternative to the fragile u-joints, especially with their ability to compensate for odd or variable length transmission... we'll have to see how much load they can take

Those 12t bevels can be fragile at times! as can the 20t ones..... truck trial kills parts! by sam2442, on Flickr

fixed it now! well spotted Tobbe!

I was using sariel's gear calculator to give me the rpm, which seems to use the loaded rpm for a pf xl from philo's page of 146rpm rather than the un-loaded 220rpm, that would explain the difference in our initial calcs.... I'm not sure whether the loaded or un loaded would be best for the calculation.... though i'd lean towards un loaded for travel on level ground. The gear calc gave me 16.8rpm for an xl at 7.2v I used (94.8*pi)*(16.8/60)=83.39 mm per second to get the speed of the landrover.. using 220 rpm in place of the 146 used by sariel i get- (94.8 * pi) * ((220 / 6) / 60) = 182.002934 mm per second for it's speed.. using your wheel's circumference and 220rpm i get- (320 * (220 / 6)) / 60 = 195.555556 so our maths agrees!.. all this is getting a little bit like a tech principles lecture from my course but it is informative...

I thought it looked very much like a moto-guzzi when i saw it on brickshelf, very nice moc!

Haha! it was lomero's wheels that inspired my own! Any clues on what's going on inside those wheels of lomero's Ayumi?

that does sound fast... what's the diameter on that tyre/rim set up? are you running 9v or 7.2v power? with a 94.8 wheel and tire combo, by my calcs the landrover does about 83mm per second or 0.18mph i think zblj's truck is even faster.... And yeah check technic bricks for the dl on those new cv joints from 8070.. they're on my next order to be placed with lego direct!

i like the way you're heading with this build, especially the torque tube style suspension, not sure on the gear ratio though.. i'm currently running approximately 1:6 with 2xls in my tt Landrover and thats's good enough for it to climb a 50 degree slope...

they split without breaking relatively easily, and if they're any weaker once reassembled i haven't noticed..