Fully remotly controled Dump Truck in 1:17 scale with cab interior and openable doors.
About this creation
I always wanted to build a dump truck. I was trying my best, but it always ended with huge disappointment. There was always something that did not work properly. But finally I managed to solve all the problems I had and build creation I am happy and proud of.
At the very beginning of the building process I wanted it to be fully remotly controled. I had two medium motors and one XL motor then, so it was enough to start working.
I wanted to make all the mechanics as easy, efficent and reliable as possible. Because of these reasons I decided to use Power Functions XL motor to drive , and two medium motors for steering and dumping. XL motor is the most powerful that The Lego Grouop produces, so I knew there will be no trouble with power during driving. I geared it down 4,5 times and now I know I could make it faster, but I am glad it is powerful anyway. Two rear axles are driven, and they have working suspension using short Lego Technic shock absorbers. Steering is not complex. It uses PF medium motor geared down 16 times. It's strong enough and never breaks down. Dumping also by PF medium motor, directly connected to big linear actuator. It works fast enough and is very strong, there are no problems with dumping big loads.
Model uses 2 PF receivers powered by 8881 Batery Box behind the cabin.
Model is black and red because of that I have a lot of bricks in this colour, so I didn't have to buy huge number of parts. The other reason is that I like that colour scheme.
I am going to build another dump truck in the future, it will be real machine model with 8x4 drive-train.