[TC9] 5 Axle Truck + Attachments

[Saberwing40k]

Well, I've had this thing in a good state of WIP for some time, so I may as well share it. I'm really motivated right now, because of the fact that I missed out on pretty much every competition between TC5 and now. I came close to entering TC6, but didn't enter TC7 due to lack of motivation, and same thing for TC8. So, I am back, with a vengeance.

My entry is a five axle truck. Its loosely based on my [TRIPLE] contest entry, or at least the truck part, but this model is an improvement in every way. The steering works better, the engine works better, and now the chassis sports a lift axle. That middle part was quite difficult to design, but I ultimately got it right, after 3 revisions. The two rear axles drive a fake six cylinder engine, which works far better than the old truck with its V8. The steering, as I mentioned, has been dramatically improved. It still uses Ackerman correction, but the actuation is accomplished by levers and Pitman arms versus the complicated and difficult to use gearbox and racks of the old truck. Getting the two axles to turn at different angles was quite a difficult process, but I found a solution that is robust and simple, after about 4 revisions and a few hours of frustrated facepalming. The truck is not quite finished, but when it is, the chassis will be the same for both A and B models. This solution, I feel, is a bit more suited for this competition than having to rebuild the whole model. Instead, part of the model will be rebuilt, in the form of two attachments to the truck, using the same parts; This is similar to how 8421 works. One module will be an Effer style knuckle boom crane, with the other one being... something else. In spite of appearances, the truck does fit in a bounding box 15x13x48 studs, resulting in a volume of 9,360 cubic studs. The only exception is the steering axle, which will be shortened. The fenders are also not final, and will be changed.

The truck in the bounding box:

Inabox by Saberwing007, on Flickr

The truck:

Truck by Saberwing007, on Flickr

Lift Axle in action. The lift is controlled by the 12z gear ahead of the axle.

Lift Axle by Saberwing007, on Flickr

Maximum steering lock.

Steering by Saberwing007, on Flickr

There will be more to come, as the cab, and then the crane are added.

[2LegoOrNot2Lego...]

Well impressive and so far so good!!! I am not sure about both A and B having the same chassis in terms of what this competition is about. Even though I do agree with your argument. First glance of this project directly made me wonder what the B model would be like...

[Saberwing40k]

What, what do you think it would be like?

Also, senpai noticed me.:)

[zweihander]

Also, senpai noticed me.:)

I made a snort-laugh when I read this cuz I've been feeling the same

I'll be following this build, I'm curious what and how you'll be able to fit in there