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Posted

This has been a long time in the making, i didnt have time for a couple of months but today i decided to finish it.

PXL_20260124_182356178

it is a motorized portal crane like the ones from model railway companies such as faller.

PXL_20260124_182430835

the cables are routed through a rigid hose and some technic parts into the crane

PXL_20260124_182405986

the crane is powered by 2 modified tower pro sg90 servos, it can rotate and lift/lower the bucket.

PXL_20260124_182451181

the color sceme is the same blue and white "DONAU-KIES-AG Regensburg" one as my hopper car. This is a fictional company and was created by the model railway company TRIX for their models. Since regensburg is actually on the danube river and there is a harbor where such goods are loaded, it makes sense to have a such a crane there (even though the actual ones are much bigger).

Hope you like it!

XG BC

Posted

Stunning build. Normally, it's a solid design and good addition to a layout. By motorizing it, you made it a real show piece. Kudos.

Posted

I totally agree with what all the others wrote: Usually sitting somewhere on a layout to give a touch of busy work, your crane does the work.

What I also love is the mixing of studless and studful Technic pieces ... mixed with system bricks. Which sounds meaningless, because all bricks and pieces do systematically attach to each other. But in some particular forum, some folks get bananas when claiming that this is all one system :pir-wink:called LEGO. Who cares, you don't. I don't.

Thank you very much for sharing your really nice model!

All the best
Thorsten 

Posted

Seeing it in action looks amazing!

Once you've got the control system down, I might need to ask you to share how it works exactly, I'd love to copy the system into a crane system myself! 

It's the perfect kind playability honestly!

Posted
14 hours ago, Toastie said:

I totally agree with what all the others wrote: Usually sitting somewhere on a layout to give a touch of busy work, your crane does the work.

What I also love is the mixing of studless and studful Technic pieces ... mixed with system bricks. Which sounds meaningless, because all bricks and pieces do systematically attach to each other. But in some particular forum, some folks get bananas when claiming that this is all one system :pir-wink:called LEGO. Who cares, you don't. I don't.

Thank you very much for sharing your really nice model!

All the best
Thorsten 

Thanks, combining system and technic is kinda needed here, or at least it makes a lot of sense. My skilift i built years back is also like this. technic for the functional elements and system for the decoration. I am usually not the biggest technic builder (never built a pure technic moc), but technic has an appeal for something like this where you need relatively big height and want to incorporate functionality into your moc.

Thank you aswell, I will share the controls and how i do that when i get to it @Thomas Waagenaar.

Posted

Yesterday i made a simple control system, its just one sliding switch for each motor powered by 3 AA batteries.

PXL_20260203_204606821 Portalkran

also made a digital model (link is on flickr and in my signature here).

Posted

So, i wasnt satisfied that the crane was stationary and couldnt move. i have added some track and train wheels so it can now move along the tracks. Havent done the motorisation yet.

Portalkran_2

there is also a "cable reel" to house the cable for movement. irl photos will come later when i get the thing motorized.

 

Posted

there you go, the motor still needs to be hidden a bit more (or made black like in my field railway locomotive) and the pieces need to be made the right colors, but the functionality is working. the motor turns a small spindle which in turn pushes/pulls the rope which is ancored to either side of the track space and is held under tension.

Posted

That looks great! I like the functionality and overall look, must be fun to play with!

Posted (edited)

oh 100% it is. maybe i will figure out a way to motorize the gripper aswell but that will come at a later date. As a kid i made various cranes like this, but never motorized them, and i tried to mod a servo for continous rotation but never succeeded back then either (i have it down now with these cheap tower pro ones where it takes me like a minute). And welcome to eurobricks! @rjr

today i finished the crane, at least so far that i am happy with it

portalkran fertig

i added ladders so you can go up to the cab

portalkran fertig 1

and i spun the motor mount around so it doesnt catch on wagons anymore aswell as did some cable routing , still need to finish the control system.

Edited by XG BC

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