Gold Fever at Legoworld Utrecht

[mahjqa]

After a trial run earlier this year we made it to Legoworld in Utrecht for seven days of fun with heavy machinery. This scale allows for vehicles that are both attractive and functional, and we're pleased to report we had very little technical trouble along the way. Replacing one burned out L motor, some fiddling with the parts and back to mining we went. We had lots of positive attention from the audience, and we hope you'll like the video as well. 

[JopieK]

Very nice @mahjqa. Just wondering if they will ask you for a new Gold Rush series on Discovery channel.

[dmaclego]

And that's where the real Technic is truly alive. Certainly not in the umpteenth Ferrari or Lamborghini supercar set.

Great job, Mahjqa, thank you!

 

[m2fel]

This is great  The BWE 42055 with it's great b-model made me think about building a material separator / sorter site with machinery to extract gold pieces or black pieces (charcoal) from rock (grey pieces) or Lego balls from debris. Never made it beyond the concept in my head but this is pretty much it! Loader, excavator, separator, dump truck and conveyor. Everything RC or moving. Just awesome 

[gyenesvi]

It's really mesmerizing to watch them all! I wonder what's the principle of the piece separator to separate out the gold. Is it based on piece size / shape?

[Appie]

Thanks all 

On 10/25/2025 at 10:09 PM, gyenesvi said:

I wonder what's the principle of the piece separator to separate out the gold. Is it based on piece size / shape?

It's based on piece size, the bushes fit through a 1 stud space, the gold doesn't. The difference in size is minimal, so the machines required a very narrow operating window. The DBG cilinder machine (Mahj's) worked better than the white machine (mine). Both had a 100% succes rate of not getting gold in the pile of bushes on the side, but for my machine there were more bushes in the little (dark blue) retainer meant for only the gold at the end. Mahj's machine had like 1 bush in that gold retainer when it was full vs my 10-15 bushes in my gold retainer when it was full. Mahj tells me it's because this is my first version of this machine and he's on version 3 

Either way, stuff to tackle for a new version