backbone Posted February 24, 2010 Posted February 24, 2010 (edited) I`m Building 8x8 truck, for polish truck trial competition. Work in progress, some photos and one test video: Sorry for photos and video quality. Soon i`ll add some with better quality. Motors used: 2 x PF XL 2 x PF M 8 wheel drive, 4 wheels steering (possibility to independent steering each axle) Reduction: 1:9 Edited February 24, 2010 by backbone Quote
Darth Legolas Posted February 24, 2010 Posted February 24, 2010 Oh my God! That technique is totally amazing! The wheels seem to already have suspension, but the way the rotating and hinged center is the best part! That's very, very smart! I love how it can climb stair cases! I'd really love to see an underside picture, just so I can see how the gears work. I'm assuming that has all 8-wheels drive? Very, very good! Quote
backbone Posted February 24, 2010 Author Posted February 24, 2010 but the way the rotating and hinged center is the best part! This connector will be removed, this is only for chassis tests. I'd really love to see an underside picture, just so I can see how the gears work. I'm assuming that has all 8-wheels drive? Yes 8 wheel drive, 4 wheels steered. Quote
Darth Legolas Posted February 24, 2010 Posted February 24, 2010 This connector will be removed, this is only for chassis tests. That's a little depressing, but oh well, I'm sure the final model will look great! If I ever need a stair climber, I'll remember this. Just a few books for the initial step should do it. Yes 8 wheel drive, 4 wheels steered. I never say that technique before! My ignorance brought me to believe that in order to turn an axle at different angles you'd always have to use a U-joint! Quote
backbone Posted February 24, 2010 Author Posted February 24, 2010 I never say that technique before! My ignorance brought me to believe that in order to turn an axle at different angles you'd always have to use a U-joint! U-joint is too weak for truck trial. And remember: Each gear must have strength mount. From previous version of chassis: One gear broken, and one axle. Quote
Darth Legolas Posted February 24, 2010 Posted February 24, 2010 U-joint is too weak for truck trial. And remember: Each gear must have strength mount. From previous version of chassis: One gear broken, and one axle. Dang. Quote
cbt Posted March 2, 2010 Posted March 2, 2010 Well, I really like the idea of doing a LEGO Trial Truck that really works as do the real life TT's. If I was to do such an 8-wheeler I would make a frame of the parts of two Dirt Crushers or Outdoor Challengers. They are tough as hell, and that vehicle would definitely work - no matter the weather or the state the tracks are in. On top of that frame I would place a Tatra or MAN style light-weight body made of "real" Technic parts - and then you're off... and leaving all the others behind. Quote
Tobbe Arnesson Posted March 5, 2010 Posted March 5, 2010 polish truck trial competition What a surprise! Don't take it the wrong way, I'm quite fond of truck trials and would love to see some in Sweden. All we get is power pulling... Looks great so far! Best of luck in the comp and hope you shoot some video of the competition as well! Quote
backbone Posted March 5, 2010 Author Posted March 5, 2010 This chassis (from photos in 1 posts) not exists. Now im building improved version - small dimensions, turntables between each axle. First front axle with turntable is finished. Quote
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