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Old 01-13-2021, 08:14 AM
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Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)

The Free Model Contest

This year Toddlea is hosting a new edition of his famous Free Model Contest.
For those who don't know how it works: it is as simple as to find a legal
free download, build, and show your model.

More details and instructions on how to enter the contest can be found
in the original post here: Free Model Contest #6

I find this contest is a very good excuse to build something new, and show what
can be done with free models. And since the rules allow for modifications, there is
plenty of room for some creativity.

After finishing my Tokyo Tower last year I was lost on what to build next.
So when I read about this new contest, I decided to have a look at the
humongous pile of free downloads in my hard drive.

After some time going through different subjects I decided to build this kit.
I rarely build vehicles. And I have never built construction equipment, trucks
or the like. So I thought this should be a refreshing deviation from what I've
built lately and a good challenge.



The kit



Name of the Kit: Menzi Muck A81 excavator

Scale: 1:25

Designer: Valentín Korinek (2012)

Download link: http://tvorbamodelov.epizy.com/edownloads.html?i=1
At the moment of starting this thread the download link is working and the
complete file is available for free from the original designer's website.
There are other interesting free models there as well.


The kit vs the real thing:

After looking at dozens of photos of the real excavator I can see the kit
manages to capture many essential characteristics of the Menzi A81
and keeps the proportions of the excavator pretty well.
Some small details like the side ventilation openings, the claws, the lights,
and mirrors vary greatly, probably because the excavator passed through
several modifications during the time it was available from Menzi (2004-2012).
Other details like the operator's seat and controls are simplified. So I'm inclined
to think that this is more likely a "generic A81" than an accurate representation of a
specific vehicle.

But the kit has good detailing, and is very attractive for a free kit.
Not one for beginners, though.



Other build threads:

It is very useful to have some documentation, and the experience of other builders
helps a lot when you are starting a new project so that you know what to expect.

The original building thread of the designer can be found at papermodelers.sk:
Menzi Muck A81 /WanRayen/ 1:25 - papermodelers.sk

There is a build thread at Kartonbau:
Menzi Muck Schreitkrahn von Paper model skaliert von1:25 auf 1:18 - Bauberichte - Kartonbau.de - Alles rund um Papiermodelle, Kartonmodellbau und Bastelbogen
But it only shows the beginning of the process and several finished photos.

There is a gallery of a finished model at Kartonówki:
Model Koparka Menzi Muck A81 - Kartonowki.pl
And the video process of the builder of the same model in Kartonówki can be found in Youtube:
https://www.youtube.com/watch?v=gHnZPGMAKYo

There are also a couple of abandoned builds at pm.sk and Kartonbau, and another
complete model finished at a Russian forum.

From what I could gather with the use of Google Translator, all the modellers besides
the original designer have encountered problems with parts not fitting correctly.
So I know there will be surprises that will need to be corrected.





Studying the kit

I made a test print to study the kit and the parts and the instructions, in order to
identify the problematic points, and to know which will be laminated onto what type
of material (some parts will be glued on 0,5mm, others on 1mm, and 2mm).
Also, to find out where I can add detail.
So this is the first step: studying the kit.





I'm already thinking on grouping the parts according to their intended thickness
and prepare a laser cut. Yes: Tokyo Tower left me with some trauma about cutting.
So I don't really want to cut dozens of tiny fiddly parts by hand.

We'll see how this turns out.

I will be most delighted if my model comes to completion and looks half as good
as those in the other forums.

Thanks for reading, and until next time!


.
Attached Thumbnails
Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-01.jpg   Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-02.jpg  
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  #2  
Old 01-13-2021, 07:25 PM
Don Boose's Avatar
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It looks like a very complex and challenging model. I will be watching with great interest, but will attempt a very much simpler model for my entry. At present, I lean toward Aaron Murphy's Burnelli UB-14 in notional D-Day markings rescaled to 1/48.

Good luck with this most interesting model.

Do
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Old 01-19-2021, 01:53 PM
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I have advanced in this model according to the assembly diagrams provided in the kit.

Yes, there are a couple of instances where parts have the wrong size.
But they're few, and if you are careful and have some extra material,
you can surely solve those problems.

I did prepare some laser cuts to help me with many cardboard parts.
And corrected the most glaring mistakes I found. Like this one:

Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-03.jpg




Hopefully this will save me some time cutting.





Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-04.jpg




I strongly recommend to anyone building this, to have a good amount of extra material.
It comes handy when correcting the minor mistakes, or when adding details.

What I've found after analyzing all the other builds of this kit, it is clear that
the kit can not support its own weight, because the rods that serve as articulation
points need more friction than what the cardstock provide. So I am trying to
fix that problem by thickening the walls of the parts and the points where the rods are fixed.
We'll see if that works.

Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-05.jpg




The kit is nor clear at ll about the rotating mechanism that allows the cabin to move.
So I improvised one of my own that works fine.

Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-06.jpg






Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-07.jpg



As you can see, I heavily modified the side steps. I may add/modify other details along the way.


It is clear the kit will need some paint in the future. And by now I'm concentrating on the
main components, leaving the hydraulic components for much later.




Thanks for reading!
Attached Thumbnails
Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-03.jpg   Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-04.jpg   Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-05.jpg   Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-06.jpg   Toddlea's Free model contest #6 - Menzi Muck A81 excavator (1:25)-menzi-07.jpg  

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  #4  
Old 01-19-2021, 03:02 PM
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Most interesting. I am enjoying the narrative and images as you grapple with the challenges of this model.

Don
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