A big machine idea

[Carsten Svendsen]

I have known this thing existed for quite a while. I don't know if anyone has ever built it in LEGO, but I was thinking of doing it in a minifig scale so that it could be displayed at events in the main display.

That'd be epic

If no one has started building this thing after I'm done with my airplane, then I'll do it and spend a shitload of money on belts and liftarms

[Milan]

There are few on BS. Some are motorized.

[1974]

This is the world's largest land vehicle. 215 meter long, 95 meter tall, about 13.500 tons. Convert that to minifig scale, it's 5,4 meters long, 2,4 meters tall. Weight is unknown as steel don't easily convert to plastic

Well, you got a lot of beams left over from that non-flying airplane anyway, so I say go for it!

Also, it does not carry it's own power source, but needs 17MW (that'll be around 30.000 rechargeable battery boxes in minifig scale!) supplied from an external source .. (Cables must be fat as h3ll??!!)

Most awesome machine. I'd luv to sit in that control room and push some buttons

Lastly, it can fill 2400 train wagons a day, so there's another project for you to MOC

[timslegos]

I too have long admired this mamouth macine. i would love the chance to see one in person. I believe Sariel tried building one of these but quit because it was too big/heavy.

tim

[skylinedan]

I read about this move a while ago, they laid down 8 feet of dirt over the road way so the weight of it would'nt tear up the road as it crossed. the thing is enormous, to really get an idea of how big it is you have to stand next to it. I think one could build it, in LEGo, but the scale would have to me real small, and even then its gonna be big.

Dan

Edited February 22, 2013 by skylinedan

[Saberwing40k]

I can say that you are going to have a lot of trouble with this. Sariel built a similar model, but roughly half of your scaled size, and it ultimately failed. The chassis was simply too flexible.

[drdesignz]

I've seen a few ridiculously huge Lego cranes, like this one, so I think minifig scale might be possible with the appropriate truss design with cable (string) support.

[DLuders]

@ Carsten Svendsen: I know that in 2013 Sariel was planning on making a "...Bucket Wheel Excavator model, which I’ve been thinking on for a long time since 2009,when my first attempt at it failed. I think I know now where I went wrong and how to go right. The model will surely be massive, and controlled by no less than two NXT units, allowing wireless remote control using a pad. There will be over 400 of the tread links alone in this model, and I think it’s going to be a huge and challenging build."

[Blakbird]

The only successful model of a bucket wheel excavator that I know of is this one by Holger Matthes.

http://www.holgermatthes.de/bricks/en/bucket-wheel-excavator.php

[Alasdair Ryan]

The only successful model of a bucket wheel excavator that I know of is this one by Holger Matthes.

http://www.holgermat...l-excavator.php

That is quite a nice looking attempt at one.

[jorgeopesi]

There are a few... but one more is good .

[CornUponCob]

This one on youtube:

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Never found a website for it or anything.

I have 12 large buckets (and 8 smaller ones) that I plan on using for a "fatty" bucket wheel excavator at some point in the future. I know the buckets aren't typically that wide, but it doesn't bother me.

[Carsten Svendsen]

Cool, the fact that there are so many different version is pretty cool. However, because these are so "small" it'd be awesome to build one in minifig scale. 5 meters of liftarm is going to weigh a lot I think?

[DLuders]

@ Carsten Svendsen: If you are serious about making such a huge MOC (and stressing the Lego Technic Liftarms to their limits), you should read Tl8's 29-page "Investigation Into the Strength of Lego Technic Liftarms and Brick Beams, and of Liftarm Pin Connections".

[jorgeopesi]

Build it huge will be a failure in my opinion, you will win size but you will loose the most important thing on technic, the functionality, and a lot of money .

[Carsten Svendsen]

@ Carsten Svendsen: If you are serious about making such a huge MOC (and stressing the Lego Technic Liftarms to their limits), you should read Tl8's 29-page "Investigation Into the Strength of Lego Technic Liftarms and Brick Beams, and of Liftarm Pin Connections".

Interesting read

I don't plan on building it yet, it was just a thought that came to mind. I would like to say that in those tests performed, the liftarms could handle average 250 N which is 2450 kg - Brick beams are stronger

I don't know about you, but I don't think that amount of force is ever going to be realistic on a model. Remember that there are multiple connection points, it's not just 5 meters of floating liftarms. Then there's all of the wire

[Edwin Korstanje]

I wish you good luck with this project and when you even start this it's gona be far over the 100 kg and you will be stressed Lego to the edge and olso your purse to and it will cost way over the € 10000,00 .

Anyway if you get done it, than is this the biggest technic project ever

Not only the juged amount off liftarms you need, howmany pins there go in it and hope that you have fingers left to put it all in