Lattice Crane

Introduction

In may 2001, I've started to build a lattice crane. It's quite a big project, and you can find here some informations on it.


Why such a crane ?

Dennis with his craneI was thinking about it for months. First of all, Dennis Bosmann, a dutchman who make amazing Lego models has inspired me a lot. He made a crane, model from a Liebherr LG1550. Each time I surf on his site I get several reactions :

"4m20 high, it's incredible..., how can he do that..., it's very model-like, I want to do same kind of thing !"

Sometimes, at work, we rent some cranes (real ones !), and I'm fascinated by those machines. In 1994, I realized a tower crane.

At least, I had some contacts with Youri Bertomeu, a guy who work in hosting company in France : Mediaco. He also started a Lego crane.

After months of thinking, I started !

1994 tower crane


Model choice

Terex crawler craneFirst I searched on the web machinery builders, and hosting companies. There are several kind of mobile cranes : Crawler cranes or truck cranes.

Most of the truck cranes are telescopic, erect by hydraulic jack. Crawler cranes are often used for realy heavy charges, with lattice boom.

As it's really dificult to make high power and long course jacks with Lego, and big telescopic boom iss hard to manage, I decided to build a lattice crane.

But, in may, I haven't enough Lego crawler to build a crawler carrier. Then I've choose to mix a truck crane, with a lattice boom.

Demag AC120The truck carrier is a Demag AC120, the superstructure is from Terex HC125ss and boom combinations are from different big Demag crawler cranes.


Scale choice

Scale choice was imposed by wheel size. As the carrier is a 5 axle, I need 10 wheels of the same size. I decided to start with Lego 20x30 type wich is 64mm diameter.

So scale should be 1/25. It would be possible to build it, but the space into the superstructure will be limited.

Terex HC125ss


Model genesis

I've built the crane in a curious order : I've started by main boom, then the carrier, then the superstructure. I worked at least 50 hours before the first lifting.First lifting, may 20001, 9th

And then has started the evolution processus... Second carrier, new drums, fly jib. In middle of june, I've already work more than 200 hours on this project.


 

Home

 

 Crane summary
 First carrier