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Mobile Crane Mark 20something
One of these days I'll get the hang of these....
About this creation

Put me near a pile of yellow Lego and cranes just seem to happen. This time it's a five axle Liebherr LTM 1130-5.1; a type I've made 3 times before in different sizes.



This one, at 15 studs wide is smallish, but what I've aimed for here is all the functionality of the big one, but using manual controls rather than motors.



This models' abilities are:

Suspension on all five axles.
Progressive rate steering on axles 1,2 and 5; the last one countersteers.
V-8 engine driven by 4th axle.
Four locking stabilisers, deployed by a single control.
Slewing superstructure.
Tilting superstructure cab.
Luffing boom using a compact and strong brick built actuator.
Extending boom (4 sections) using the wonder of string.
Ratcheted winch for the hook.

That gives me plenty to play with!

I've gone for a cleaner aesthetic than usual, without chasing all the studs away.



Another useful feature is the ability to easily remove the superstructure...



Leaving me a funny looking truck to show you first. The door opens, the interior is basic.



Behind the driver, an unshielded and probably intolerably loud V8.



Underneath the system exterior beats a heart of pure technic...



I had to use hard shocks for the 1st, 4th and 5th axles; the other two do fine with soft ones. Still a surprisingly heavy model...



Stabilisers are linked side to side and front to rear. Controlled by a gear on the back.



They don't work in the same way as the real crane but this is a more compact design that solidly locks in place. Cribbed from the set 8421.



Operators cab with fantastically detailed interior... or is that a 1x2 tile and a couple of bars ?



The gear behind it tilts the cab using a small linear actuator. The boom is lifted by something heftier.



And much longer. Lego won't put a decent length actuator on their cranes meaning the lifting geometry is all wrong despite their excellence as models. This fixes that.



Controls for the winch and boom extension at the back, including ratchets for both. The handle on the side does the luffing - if you're strong (should have geared that down more...)



Insert 'getting it up' joke here...



Four sections in a 6-wide boom... thankyou panels and string. Works pretty smoothly, thanks to a half plate gap between each one to minimize friction.



This could run and run...



Until it hits the ceiling. Total height about five and a half feet.



Superstructure innards are reasonably simple. It's just gotta be strong!



The magic happens in here...



The boom extension control (in front) uses two pulleys, letting one string out while pulling the other back to keep things tidy (ish). When deployed, the ratchet prevents the extended boom from falling back in.



Everything back in it's place...



Details...



Reasonably well aligned sections...



Happy with how this bit turned out.



Some authentic greebles...



A ladder for the slender operator (this is supposed to be about 1:25 scale so bigger than minifig by 50 per cent or so.





This was fun to build, and despite the sheer number of cranes I've built previously, practically everything about this one is done differently!



Thanks for stopping by,




Comments

 I like it 
  March 27, 2018
This is one serious crane! Great work, it looks like it could lift my car! :-)
 I like it 
  January 1, 2018
Very nice job there, my friend. I just love those work machines with a lot of functions and details. A marvel to see something like this anytime!
 I like it 
  December 25, 2017
another masterpiece. 5+/5
 I like it 
  December 23, 2017
I've never seen a model that merged functionality with aesthetics so well. If this was a set I'd buy two! :D
 I like it 
  December 22, 2017
Fantastic work. Love how high the boom can reach.
 I like it 
  December 21, 2017
Very impressive Nick. Very well integrated technic functions with a smooth finish. Great job!
 I like it 
  December 20, 2017
Impressive model!
 I like it 
  December 19, 2017
Wow, mr. Nick, you're always pushing our expectations and surprising us! incredible is not a word that does this crane (or its height) justice. Excellent work, keep it up!
 I made it 
  December 17, 2017
Quoting Marc dZ Finally, building studless was your true nature, you just had to discover it. This crane is truely beautiful, I had to show it to my little son, he likes cranes! Now waiting for your new studless and outstanding 2 CV... Ha ha!
Your son sounds like my kind of guy! Merry Christmas to you and your family Marc :-)
 I like it 
  December 17, 2017
Finally, building studless was your true nature, you just had to discover it. This crane is truely beautiful, I had to show it to my little son, he likes cranes! Now waiting for your new studless and outstanding 2 CV... Ha ha!
 I made it 
  December 15, 2017
Quoting Senator Chinchilla . Really great stuff Nick! You've adapted well to the new studless technic over the years.
Cheers Senator. I've taken it very, very slowly... nice to hear from you :-)
 I like it 
  December 14, 2017
Really great stuff Nick! You've adapted well to the new studless technic over the years.
 I like it 
  December 14, 2017
Great! So many details at this scale!
 I made it 
  December 13, 2017
Quoting Nirds forprez Just another note Nick.... are you planning on posting this on the EB forum? I don't see it. I know people would eat it up. Not much into posting others' work, but if your not gonna and we are okay with it I would love to share with those folks as well.
Thanks Nirds. I've had trouble accessing my account on EB, so would appreciate it. Go right ahead! Cheers, Nick
  December 13, 2017
Just another note Nick.... are you planning on posting this on the EB forum? I don't see it. I know people would eat it up. Not much into posting others' work, but if your not gonna and we are okay with it I would love to share with those folks as well.
 I like it 
  December 13, 2017
Very clean indeed, Nick! And big! And wonderfully functional! I'll be back to study the mechanisms.
 I like it 
  December 12, 2017
A pile of yellow Lego was "Mimosa Yellow" for me... ;) The yellow crane lifted you up again on MP "Top of the Posts" and that's really deserved, Nick! I love your inspired technical builds, these all have the distinctive Nick- soul... ;)
 I like it 
  December 12, 2017
The first thing I find quite excellent is the scale size...perfect. Second, this MOC looks so much fun to operate. And not to forget the accuracy of the whole truck! 2 thumbs up here!
 I like it 
  December 11, 2017
Yeah, but can it lift the previous crane? The true test as I recall. ;) Brilliant work there with some truly simplified cleverness, that undercarriage is an elegant beast let alone the actual crane. God it's been a long time since I've commented on a Nick Barrett crane, Bright Bricks must really be taking up a good chunk of your build time. Suppose it could be worse. ;) Now get writing on that article!
 I like it 
  December 11, 2017
This is severely stupendous. Terrific job - I dare say even better than your other cranes. There is a simplicity to this build that tackles technical sophistication and complexity that at least in my opinion is the true hallmark of great engineering. Wow. Do you even make videos of your builds? Most contain some functional aspect to them, I would love to see this thing in live action.
 I like it 
  December 11, 2017
Wow, just wow! I can't show this thing to my son: He would want one immediately :-)). Great job! :-))
 I like it 
  December 10, 2017
This is amazing, it looks like a real lego technic set!
 I like it 
  December 10, 2017
The engineering features you put into these is nuts. Plus appearing like it's just built for looks... Now, to drop a caravan onto a target. How hard could it be?
 I like it 
  December 10, 2017
Always good when the master of Technic shows us what he's been working on! This is great, especially the smoothness of everything, as well as the aligned sections of the crane arm at the front. Fantastic work, like always my friend!
 I like it 
  December 10, 2017
Wow! This is really impressive. For a 15-wide vehicle, the set of features is hard to believe, especially the 5.5 foot boom.
 I made it 
  December 10, 2017
Quoting Joost Cumps Lovely! Again. Just really nice to see something new from your hands! Many greetings!
Thanks Joost. Yep, it's been a while but it's good to be back.
 I like it 
  December 10, 2017
Always a treat. Show us more of the brick built actuator please. :)
 I like it 
  December 10, 2017
Lovely! Again. Just really nice to see something new from your hands! Many greetings!
 I like it 
  December 10, 2017
What a brilliant design for your new crane boom! And the rest of the mobile crane has entered a new "less stud" era! Beautiful work!
 I like it 
  December 10, 2017
Nick outstanding build as always looks amazing and playable would be a great official LEGO set but think it would cost to much
 I like it 
  December 10, 2017
One of these days? Ha! If you get any better at this then I don't think I'd be able to tell the difference between the model and the real thing. Spectacular build, some really elegant design choices here.
 I like it 
  December 10, 2017
amazing work!:D
 I like it 
  December 10, 2017
Fantastic. Instantly recognised the author from the homepage thumbnail - glad to see you still posting these large creations here. Gotta love those big cranes - even those operated entirely by the invisible man :)
 I like it 
  December 10, 2017
I'm going to go ahead and say that you definitely have the hang of these! This is a brilliant display of engineering! The sheer size is mind blowing and the functionality outstanding! Another masterpiece my friend!
 I like it 
  December 10, 2017
Bada bing, bada... BOOM! The incredible technic and systems technical know how and ingenuity blow me away Nick!
 I made it 
  December 10, 2017
Quoting LimitlessBricks.com LEGO Models Wow, just the boom itself is a master MOC by itself! I am designing a similar one, same 4 sections, but a bit different approach. Can't wait to compare them :) Thanks for creating all of this marvels!
Thanks Milan. Looking forward to seeing what you come up with!
 I like it 
  December 10, 2017
Absolutely marvelous work on this crane my friend. Really love the high level of detail and functionality. Outstanding!
 I like it 
  December 10, 2017
Ellis and I are totally impressed! Pure technic and pure skill. Ellis really like the hight it can achieve. Super cool.
 I like it 
  December 10, 2017
The summum of lego creations, to combine the functionality with esthetics. I love it. It does seem like it could use some more color, some traffic reflecting stripes maybe? Great job.
 I like it 
  December 10, 2017
Excellent! The boom is incredible!
 I like it 
  December 10, 2017
Your fantastic boom design gave me ideas on a completely different area, where long and strong booms are neccessary.
 I like it 
  December 10, 2017
Fantastic work as allways
 I like it 
  December 10, 2017
Wow I have boom envy. :-) magnificent work!
 I like it 
  December 10, 2017
Wow, just the boom itself is a master MOC by itself! I am designing a similar one, same 4 sections, but a bit different approach. Can't wait to compare them :) Thanks for creating all of this marvels!
 I like it 
  December 10, 2017
Excellent design! Very clean lines of the contours of the Crane.
 
By Nick Barrett
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LEGO models my own creation MOCpages toys shop Mobile Crane Mark 20somethingLarge scale vehicles


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