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Showing results for tags '62.4'.
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62.4 mm wheels Mini 8x8 tatra concept
Zerobricks posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
After taking apart my class tractor I was looking at the new hubs, and got a great idea. Why not create a proper tatra concept with the 62.4 mm wheels. Fiddling around in LDD I created a 10x10 concept model: The main features I wanted to have are as following: Seperated drive axle from the weight bearing axle - this way the friction is greatly reduced and efficiency improved Linked steering - realistic, simple and relaible solution for which steering angle is almost unaffected by suspension travel Leaf suspension - a simple leaf sprung suspension which allows smooth travel over bumps without weight transfer First the drive, as you can see the pivot axles are a stud off center of the cenetr drive axle, therebye carrying all the weight. You can also see the 9L link resting on the brown 3.2mm bar acting as a reinforced leaf spring. Notice the half a stud offset between left and right side wheels. Looking at the whole chassis you can see front and rear suspension are pretty much the same, the only difference bing the front steers and has one wheel per axle, while the rear has dual wheels for maximum traction Steering uses small linear actuators and links in order to steer the axles. The steering angles can be adjusted by steering lever length and position of the linkage on the red steering swing. This way the first axle steers at a higher angle than the second. And finally here is the whole truck. I know it does not look very Tatra-ish, but I couldn't resist the bright color (vomit) Rear view: I finished up the truck with a working steering wheel and a fake V8 engine. Here are the final stats: Length: 37 cm Width: 16 cm Height: 15,5 cm Weight: 1200 grams Gear ratio: 1:2,78 powered by a single 1 XL motor Expect a video of the truck soon P.S. I really hope this model will inspire more people to build models at such scale. -
Small scale truck trial
Zerobricks posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Since the new Arocs relased with new suspension parts and a great idea for the rear axle I was thinking, why not also make small scale truck trial machines/races with 62,4mm wheels as a reference point. I think this translates to roughly 1:13 scale. Because this is a smaller scale the models should be easier to build with less parts and more structualy rigid I think a max of 2 x XL, 3x L or 4x M motors should be enough at this scale... What do you guys think? Wanna debate, maybe even set up some guidelines and build something? P.S. click here for some axle ideas at this scale