MOC Design Diary

For this project, I wanted to build a remote controlled, wheeled skid steer loader. I used the Caterpillar 226B as a reference, but the idea was to have a functional remote control model rather than an accurate scale model. I decided on using the 62.4 tires with yellow rims and used that as the reference for the scale of the model. It quickly became clear that the space available for the functionality was quite small. 4 motors were needed: 2 for driving the left and right wheels, 1 for lifting the arms and 1 for tilting the bucket. It was going to be a challenge to fit everything in. With an overall width of 15 studs, the hull between the wheels needed to be 9 studs wide, with only 7 studs available for the mechanics inside. I put together a compact drivetrain using 2 M motors. The reason for using M motors was that I wanted the drivetrain to be low enough  so that the cabin could sit on top. That seemed to work alright, and I continued with the other two functions. I w...

  This is the story of my first Lego Technic build after a pause of 20 years. As I got back into Lego after such a long pause, I bought a few sets, disassembled them and got to thinking about what I wanted to build. I got the 42030, 8264 and 42009, which seemed to be good sets for parts. As I disassembled these, I got to know about the studless way of building. It looked very different to what I had played with in the past, and I found that there was a much wider variety of parts compared to before. With this in mind, I thought that I should start off with a nice easy project to learn about and get used to studless building. However, I did want to try out the power functions with remote control. My first thought was a forklift. After spending a few unsuccessful hours trying to get started, however, I realized that I needed a simpler project to start on. This is where I decided on a simple remote controlled tow tractor and luggage cart, like you would see at an airpor...