The 9th version of my trial truck. It has 4 wheel drive, PF controlled.
About this creation
After a long time i am back to mocpages with a new trial truck. The challenge i was facing was how to make the truck as efficient as possible. To do so the truck should as low toothgears number as possible. Also there must be a way to power the front wheels with enough torque. Also the suspension should be made as relaistic as possible, so i decided to use 6.5L springs to make a working live axle suspension. This allows the truck not only to tilt each axle at 15 degree angle, but also absorb any bigger vertical shocks. The axle had to be firmly attached to the chassis. This is why everya xle is attached on truck at five places. Springs hold it in up-down position, to prevent the axle moving sideways i used suspension arm from 8297 and to stop axle moving along the length of the truck i used two steering 6 studded links. To carry torque on axles i used normal universal joints. But to carry the power on front wheels i used a new smaller 3 studded universal joint with a combination of 8 and 24 tooth gears. This way i reduce the stress on universal joint by 3 times and also get some nice gearing. The main power plant for the truck is the mighty XL motor. When all the gearing arstios add up the total gear ratio from motor to all wheels is 5:1. That means the truck has enough torque, yet is fast enough.
Look at this, another person focussed on performance building :D I approve!
I like what you did there... I know building a well-performing vehicle can be more stressful than "putting a few power functions in your model". I'm not quite sure if you did the gear ratios right though, as while having an awesome amount of torque (the box slope climbing video is indeed impressive!), it has a lot of trouble on dirt by moving so slow, acting more like a tank than a jeep. You should take a look at auto-transmissions that gear up heavily when needed to climb a hill, for example - not hard at all, but you'll need an additional differential just for that (plus you might run into size problems with your scale :/ )
Otherwise, a really cool-looking and definately working-out concept, that could just use a bit more power ^^
Keep up the good work!
sry bout not giveing credit on my truck i posted, didnt no you had a moc site other than brickshelf, so was kinda hard to say who exactly made the truck, i took the same basic modle of it that you gave instructions but i cut the mass of it bye a large amount, makes its a bit quicker and moved the center of gravity lower to the ground, also raised the the shock mounts on mine recently for the 9L shocks only prob i have now is the center third support pops the ball pin outa socket on some dificult terrain. BUT the axles that you have constructed are bye far the best ive ever seen they work flawless. only gripe i have is no differential in them byt i dont careto mess with them in fear of compramizeing there integrity. thanks for the instructions.!