Hey folks,
first post here, so let's make this proper.
I'm a 30 year old German, who recently got back into Technic. I loved Lego when I was young, and the 8880 Super Car is basically ingrained in my mind as one of my fondest childhood memories. Due to my (former \o/) financial situation, things like this and expensive hobbies in general were laid on ice for a decade.
My situation has improved, and I recently got back into Technic. Over the last 3 months, I build
42065 Tracked Racer
42055 Bucket Wheel Excavator
42063 BMW R 1200 GS Adventure
42052 Heavy Lift Helicopter
Being who I am, I love largescale projects. So I started dreaming of my own MOC. First something like a working tank with working rotating turret and liftable, obviously working, gun. While somewhat challenging, it's something that has been done to death.
Soooo I came to the conclusion I want to build a tractor.
Not any tractor, but one heavily inspired by the CaseIH Quadtrack-series. Not a replica, though. Tracks will be different and it will have implement hitches on front to back.
Current estimates will give it a footprint of something like 70x30cm length and width. Quite a large vehicle as you can agree. Dual-tracks (as in, using the track-pieces that are used in the Bucket Wheel Excavator, but using two of them side-by-side) kinda are the base for size-guessing.
Currently working on frame and central pivot hinge, which is also where my first problems appear.
I do lack the experience to figure out how to a) make a stiff frame that is touch enough to take the weight of such a large and heavy MOC without twisting and bending too much. As well as... I don't know if my central pivot is... worthwhile. I do like what I have so far, but I'm nowhere as experienced as you guys are.
So, to summarize, I'd like to ask for help and advice when it comes to the frame in general and the large central pivot point.
What I have so far:
