I found these images from a Chinese seller, which depicts all their wide radius track. From the looks of it, it is an actual photo, but if that's true, it means the tracks are really inprecise, considering they should have equal distance between. Some other mistakes include the fact that R120 is inside R104, a full circle of R152 having 57 segments, and the R104 seems to be missing a tie in each segment.
This is my first working technic MOC, and I completed 95% of it in only 3 days. Behing only a starter at technic, this is incredibly impressive to me.
The build uses purely Mould King electronics, with L motors for the driving and tipping, and servo steering. The steering has some form of Ackerman geometry, which I achieved using a slightly slanted axle with a 12 tooth gear on one end, and a 8 tooth gear on the other. Driving has a manual 2-speed gearbox for either speed or torque. There is suspension, but made in a weird way so the truck will tilt, but not sag under weight, it also causes it to tilt when i accelerate.
The linear actuator cracks a lot, is it due to old age (7 years) or is the bed simply too heavy? (I have no new actuators to compare)
After I saw the Mould King set #13139, I fell in love with it immediately. But after a while I realized that it was a MOC made by madoca1977. I didn't have the financial ability to buy the set or the separate parts so I made my own 6-wide version.
I decided to sacrifice all the functions except for the driving and steering, also the blue and white line on the side is also gone, because there are gear racks inside so I can't fit full bricks as the walls. My original design used gears to turn the wheels, but there was too much slack in the gears so the wheels would not return to center even if the axle is. I didn't have enough Power Functions or Powered Up components so I used Mould King's instead. I used an L motor to drive the wheels and a servo motor for the steering, which worked great (except the servo was faulty). After all the moving parts were installed I figured there was enough room for a small tailgate, because I wanted the truck to be able to have another trailer towed behind it so the tailgate has a ball socket. And I'm still not happy with the design.
After the main part of the truck was done I played around with it for a few days, definitely feel that it needed more speed, so I made the wheels faster with gear ratio. And along with speed also comes drifting, so I used wheel rims so the friction will be low, and it drifted really easily. Now I have to charge the battery twice a day because I drift around with it so much.
I'm kind of obsessed with making 6-wide models now, maybe I'll make more vehicles in this scale.
Thanks for reading through the wall of text if you made it this far.