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Found 1 result

  1. Hi everybody, my last few mocs were quite small - but not this one ... It is a Luffing Crane with a container claw - a perfect fit to 42078 Powerfunctions: 1. Moving forward/backward on the rails 2. Rotating the superstructure 3. Moving the boom up/down (level of the payload does not change) 4. Moving the claw up/down 5. Rotating the claw 6. Open/close the claw All functions are powered by one XL-motor. Function and direction is preselected by six clutches and there is one main clutch that activates the selected function. The main clutch works much smoother (it is a friction clutch) than the Lego dog clutch 18947 and allows precise steering. This is the key function of the model: the container claw. Three ropes, three functions: up/down, rotating, open/close The rigging is quite challenging Here is the engine house with 6 sticks to operate the clutches. The red read lever on the right activates the friction clutch. The shovels work as counter weights (with some old batteries inside). The trailer can carry two 42078 containers and has suspension with torsion bars. The container in the background looks a little bit funny as it is made of tracks ... And now guess what this is: ... these are the leftovers from 42055. Yes, yes, yes: this is a C-model It is using about 3000 bricks. Can you imagine to run out of black connector pins with a 42055 on the table? If you are wondering how these claw functions work, have a look at this topic: Many thanks to @kolbjha; I adapted your idea using a closed loop to open/close the claw. My crane uses the closed loop to rotate the claw and an additional rope is used for open/close. Well, that's it for today. I know you want to see a video ... please be patient. I will be away from my Lego for a while and of course I want to pick up the 42078 before I start the shooting. At least you can see the pics in higher resolution on my Bricksafe page: https://bricksafe.com/pages/Leonard_Goldstein/luffing_crane Bye Leonard_Goldstein