JMChristopher

Nice!

I hope so too. I wish Lego parts weren't made out of cake. I wonder if 3d printed parts would be any stronger. Anyway, thanks again. :)

The solution is more chains, more gears and more POWAHHHHH!!!!

Ok, here are some more images: Dual xl motor assembly: Axle and suspension assembly: Motor and suspension assembly: The rear assembled: This weekend I will see if I can get all this to work, it probably isn't strong enough and if not, back to the drawing board. :) Thanks for all the support. :)

Interesting... And thanks for all the info.

Haha, if only I had kids to do that for me. I will have to run some test to see how well this works, but I will have to do a major redesign it sounds like.

This is what I have to connect 2 xl motors to an axle. This is then set up in series between each axle on the rear portion of the vehicle. I know it is a bit of a strange way to do it (using chains and all) but it is the only way I could bypass the steering axle running directly between the motors. Sorry for it being huge and crappy, this is why I have been holding off posting more pics.

Thanks for the info. I might have to use several sets of gears so there is more than a 1 on 1 meshing, perhaps 4 gears meshed with 4 more gears to transfer power will be enough to handle 6 motors.

I will finish it out in Yellow. I was going to do a yellow cabin and engine compartment with yellow fenders front and rear.

Thanks guys. I forgot to mention one other feature. The chassis is modular and is made of 11 sections right now. Each axle is a module, each xl motor pair is a module, the frame and fender above them is a large rigid module. It still takes some work to get everything apart, but there are some "bolts" that can be easily removed to make dis-assembly easy. It may seem like an odd feature to have, but things that work in LDD don't always work in real life, so removing sections and reworking them is a big part of making this thing. To answer a few questions, the steering is the traditional rack and pinion system. The rear section has the tie rods behind the axle and the front section has them in front of each axle. A single axle runs straight through the entire vehicle. This makes it so that front and rear wheels turn opposite directions without the need for any gearing. A single L motor will power this and the linkage between this motor and the primary steering axle is located in the center of the vehicle to reduce the amount of axle flex between front and rear. The only problem is that the steering geometry is not optimal. I do not have a video of this thing in action yet. I need to order 3 more battery packs and 6 more receivers to even get this thing moving. I planed most of this out with LDD and am currently testing how well some of these ideas work in real life. For example the transmission would work well in theory since it is the strongest and simplest design I could come up with and integrate with everything else, but It might still be too weak to hold against the torque of 6 xl motors running through 1 axle. I will have to test this and maybe come up with something else if this doesn't work. I do not plan on making a trailer yet, in fact I don't quite know what I am going to even put on the rear bed. The size is actually less than a meter right now, I am trying to make the wheel base as short as possible since the turning radius is pretty horrible right now. Yes, the remote survived. ;P I would be happy to answer any more questions, post more pics and show any more engineering breakdowns of things. Just let me know what you want to see. I would also appreciate any thoughts or advice you might have as this has become quite the undertaking. Thanks!

I have been working on this on and off for nearly a year now and it is beginning to take shape (Please forgive the terrible cell phone pics): I will post some work in progress shots later but for now here is where it is at. It features: 10 wheel drive. 10 wheel steering. fully independent suspension with a little over 1.25" of travel. Maximum ground clearance of 2.375" 3 speed transmission. A compact chassis with motors integrated to add rigidity. Everything is powered by 6 xl motors for locomotion and 4 l motors for functions like steering, gear changes, pnuematic pump, etc. All power functions are controlled by remote. Once complete it will have: Pneumatic stabilizers. Some kind of crane. Here is a pic of one so you don't ave to google it: I would love to hear what you think.