Hello everyone, let me introduce my latest MOC – Mammoet PTC-200-DS Ring Crane made of Lego Technic.
This particular model attracted me for a long time, but since I saw it on YT installing the highest wheel in the world at UAE, I decided to investigate it’s building.
So I started from calculating it’s scale and number of wheels required. Railway ring set up crane’s scale. Then I decided to make 4 ¼ carriers with two 1/8 halves inside, each on 4 train wheels. So, all in all I required 32 train wheels. So, I started to look for them on BL.
Building started from these 1/8 carriers. I wanted each wheel to be driven to spread the torque all over the chassis. So each ¼ carrier is driven by L motor. Totally 4 L motors for crane rotation :)
Then I started to build main superstructure (half). Build two similar halves and connect them. Then installed winches, counterweight box and booms.
I was dreaming of a crane which would be able to lift up to 1 kilo. Luckily, this one can easily uplift
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