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TECHNIC BUILDERS: Collaboration on large scale vehicle design
Building large scale vehicle and have spent countless hours working on suspension; particularly independent w/ drive and issue of wheel camber when shocks are depressed. In many MOC vehicle builds the suspension is not "true" as depression of the shock absorber either causes the body of the vehicle to drop unrealistically or the tire to lose contact with the "road" surface. TLG has fixed this problem with some vehicles i.e.
#8070 using specialized components. But those elements are insufficient for large scale models. In
#9398 the problem is readily apparent. Specifically I wanted a large wheel/tire to remain perpendicular to road service even as it travels up and down due to "shock absorption". TLG released an element in several sets which I thought might be used to address the issue and I think the design I'm displaying here may be a possible solution. Would welcome all thoughts and if there is a need for better photos please let me know.
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Comments
I'm no Technic expert, but if I understand you correctly, you are trying to get something like this:
I will today post images of the chassis with the wheels mounted and with the shocks compressed. Due to the ball joint the drive axle remains parallel to the "road" surface and the two tie rods maintain it's centering and limited travel. Admittedly, I have not tested in a "real world" world scenario i.e. weight and motion over uneven terrain.
Only thing to watch out for is if it comes into contact with the drive shaft but that could be avoided by adjusting the distance between the upper and lower parallel arms. This could be set as an adjustble feature for greater travel of the suspension overall. A crossover between rancorbait's lower assemby and your upper shock mount might be the best course.