Hi all,
Here's my start for the Spring contest.
Usually I'm working on Warhammer 40K stuff, with a trend to steampunk and armor. But for this one I'll leave my comfort zone a bit 
My idea is to create a scene with a very distinct Third Reich/Iron Sky flair and a sprinkle of WH40K. I envision an underground research facility, looking a bit like an old U-Boot bunker, a "prototype" in the center, with soldiers and researchers around it, while a group of officers take the "dog-and-pony-show" 
In this early sketch you can see that I intended to use a bare-skeleton Pollux walker (without the weapons and armor) with an open cockpit, so one can see the "wired-in" pilot, and a whole bunch of people around it.
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In addition to my usual WH40K soldiers I decided to use some 1:48 Tamiya WWII German soldiers for this scene. They are a mis-purchase, as they usually don't fit the WH40K figures.
But for this I can mix the two, as the prototype is either built on a special planet, where the inhabitants are slimmer, or if on Dencara, these guys are from a different race with a different build, while the "real soldiers" are of the sturdy, bulky type.
Fluff for the win 
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But the more I thought about it the less I liked the idea to use another Pollux-pattern walker. And looking through my closet (I'm a real "messy" when it comes to hobby parts) I came across these Sherman and Lee boxes I purchased on e-Bay - solely for the purpose of salvaging the road wheels.
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So why not build a prototype based on a Sherman?
This way I have the option to enter in the armor, Sci-fy, and diorama categories (if I can afford it that is).
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Decision made, I opted for this Sherman hull.
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I quickly shaved off the deck, to make room for some modifications.
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Since the prototype will be mostly without hatches (open) I also added some side walls to the lower hull.
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Then I cut out the new openings for the turret and the crew hatches.
The rear central hatch is for the commander, left for the loader, right for the gunner.
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Then I worked on the gun.
Since it's still a prototype, most of the armor and covers are missing and many pieces be visible.
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So I added a movable breech - the breech opens downwards, so there will be a auto loader from inside the vehicle.
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This is how the gun looks in comparison to the hull.
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Next I worked on the actual gun mount
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and it's position on the vehicle.
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To compensate for the recoil I added a set of rails on which the gun mount can move - I'm not sure if I'll add visible dampeners....
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I'm still undecided if I mount the rails forward like this
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or rather rearwards (gun mount aligns with the front of the turret base, or the rails align with the rear)
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The whole gun mount on the vehicle.
As you can see I aim for a low silhouette and great depression (so the gun can fire from the backside of a hill).
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I also added some modifications to the rear - with a section of the engine being visible.
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Most likely I will also keep the actual engine deck open, so a section of the engine may be visible.
But I'll decide on this later, so no details added yet.
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Finally I added most of the running gear last night.
This will be pretty much out of the box.
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I also added a WH40K Imperial Guard driver (sans the head so far).
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And this is how the vehicle looks so far.
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What do you think?
I have no name for this baby yet, but I think I will break with the Greek Deity tradition and use a more mundane naming approach.
Any suggestions?
I hope you like today's update and I look forward to your comments and feedback.
Cheers
Klaus