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Quite Big Mobile Crane . Some good old fashioned classic Technic in a System wrapper. . A theme I've visited before, this time built with SuperStrength (TM) and some cunning solutions. Inspired by the crane model that was illustrated in the ideas pages of the early Technic set instructions, I present to you a biggish and very functional 8-wheel mobile crane. It's not modelled on any particular example - this is a generic build that I did my own thing with. An interior, of sorts. Not really the point of this moc - be glad the doors open.... and you can steer it by the steering wheel or the HOG control on the back of the chassis. The operator's cab, for the necessarily very thin operator... Now to what it does. All those racks and chains do mean something. It has 6 wheel steering, whereby the front pair swivel further than those behind, and the rear pair swivel the opposite way. This allows it to turn in little more than it's own length. The engine - a V6 - is connected to the third axle. Underneath, the chassis is a greedy consumer of black beams to give it the strength it needs in use. The four extending stabilisers work all together from a single control and are designed to spread the load across the strongest parts of the chassis, which is usefully stiff. Legs extended - they could do with being longer but they work as intended, which is just as well... The boom rotates and extends via handwheel controls. There's also one to raise and lower the hook. The classic way to make a crane work - I tried linear actuators and one broke under the strain. This way is strong enough, provided the carrier, as here, is built sturdy enough to whack someone over the head with (not that I'd try....) But we're gonna need more room.... The three piece boom can be augmented by this two piece folding extension carried on the chassis. Should be long enough... Now the clever bit. A loop of chain runs around the middle of the three boom sections, transmitting the input of the control wheel to the top part. Both upper sections extend at once from a single control. 'Yeah, very nice. Now PUT ME DOWN!!' And this is how I annoyed that minifig so much... Still, it could have been worse for him. With the extension fixed on the extended boom, any minifig would get vertigo. That is nearly 7 feet high! There are many, many 16 long yellow beams here.... And now it isn't. It is very heavy, though. 4 kg, or 9 lbs in old money. Thanks for watching!


LEGO models my own creation MOCpages toys shop


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