Tamiya Ferrari Enzo

After over a year of slacking on my blog, I’m back! Coinciding with a re-work of my web site and a move over from the blogspot location, I’m getting this blog moving again with a few new projects. I’ll touch on the second project in later posts, but for now, let’s have a look at…

The 1/12 Tamiya Ferrari Enzo!

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This kit is a monster, at 1/12 scale, with tons of detail and construction methods that mirror how the car is built at full scale. It’s got working, spring loaded doors, fully detailed engine and front trunk, working suspension and the molding is all top notch. Tamiya always does a great job with their kits and this one is no exception.

I also am calling upon some great resources from Scale Motorsport on this project. They offer a handy dvd full of reference photos of the Enzo, which allow me to pick through photos of the real thing and see which things the kit is missing and what details should be added.

But, as anyone who has followed a few of my projects knows, I’m never one to leave well enough alone. I couldn’t help but try to make this great kit even better. Scale Motorsport makes a few sets of extra parts for this kit that make it even more detailed.

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They offer a giant set of photo etch parts that add detail in some places, replace molded details in other places and generally make things look nicer. They also offer some great carbon fiber decal sets that are designed for this kit. I purchased the kit that covers the interior surfaces of the car that are unpainted carbon fiber on the real car.

Below you can see the photo etch sheets, which are quite large.

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Below you can see the sheets of composite decals. On the back of each sheet are the cut lines for each piece along with the part number that they are to go on to.

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The first step in construction is the engine. At 1/12 scale, the engine is pretty huge. The big benefit here is that the parts are large, easy to work with and the detail well defined. This also presented the first opportunity to use some of the photo etch parts.

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Below you can see the painted engine block with a quick dirt wash on it to help pick out the details.

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In picking through the reference photos, I noticed that the headers didn’t end in a flat plate like the plastic parts do, but had smooth 3-to-1 collectors. I decided that this was something that I needed to change. Using some Milliput epoxy putty, I formed some transitions, let them harden and then ground them into final shape. Below you can see the headers with and without the putty in place.

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Part of the photo etch upgrade kit are these little plates that attach to the headers and catalytic converter.

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Below you can see the engine coming together and starting to look more engine-y. The valve cover piece was not part of the composite decal kit, but I order a few extra sheets of the decal so that I could add it in a few places. This one took quite a bit of fitting, cutting and adjusting to get it mostly conformed to the part. A healthy dose of decal softener and some clear coat got it looking pretty good.

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I noticed in the reference photos that on the real car, there was a heat shield underneath the headers, presumably to help keep heat away from the oil pan (?). Whatever they are for, there was no corresponding part either in the kit or in the additional photo etch, so I made something out of some things I had in my extras drawer. I had some of the thin aluminum that was left over from the Curtiss Jenny model, cut out a piece of the appropriate size and then, because the real part has some pattern stamped into it, I used a little piece of screen (from a faucet) to hammer some pattern into my piece.

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Below you can see the part installed.

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Next, construction moved to the drive train that is connected directly to the engine. This began with the brake assemblies. The photo etch kit had some replacement parts here. It had me sand the kit discs smooth and then put an outer disc, hub and bolts on in order to better represent the multi-piece rotors on the real car.

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Looking at the reference, I thought that the brake calipers could be improved upon a bit, since the little tube that connects the two calipers was molded onto the plastic and wasn’t very convincing. I sanded that one off and replaced it with a bit of solder, in order to better mimic the real car.

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As the hubs and rear suspension came together, I tried to add in some of the plumbing that wasn’t added by the kit. In some cases, the kit did supply some plastic tubing to be used for brake lines. Those that have put together a Tamiya kit before will be familiar with the hollow tubing that they generally supply. It usually looks very nice, but can be tricky to work with, since it is very light weight and a bit springy. This just makes it difficult to get the tubes to stay right where you want them to be. My trick with these tubes is to carefully run a bit of solder through the tube that is just small enough to fit through. The weight of the solder helps the tubes act a little more like the real things and the solder also allows me to bend and shape the tube as I see fit. Below you can see the solder sticking out of the end of the tubes before I added them to the model.

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Below you can see the rear assembly and some of the tubes that have been added.

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Next, assembly moved to the front trunk area. The kit includes the visible parts of the trunk, as well as the various electronics that go underneath the trunk. The trunk itself is removable, should you want to show off the details. After checking the reference, I decided I wanted some more wires under there, so I put together a simple wiring harness to tie into the various boxes. Below you can see the wires before they are installed.

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Here they are in place. I also used some black tissue paper, dampened with a white glue and water mixture, to simulate the cloth wrap that is used around the real wires.

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The battery didn’t have any decals with the kit, so I tracked down the brand that the car uses, and made a few decals of my own. I also fabricated an approximation of the little bracket that holds the battery in place.

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Here you can see everything in place in between where the front wheels will be.

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That’s all for now. Construction has moved on a bit further, so look for another post soon, with the front suspension construction and some difficulties with the photo etch on the muffler. Thanks for reading!

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Walking Tanks Are Done!

Another project wrapped up! Unfortunately I was super lazy when it came to taking progress photos of the rest of the build. But, rest assured that it was more of the same. The MIG tank (older looking one) was sprayed with red, stippled with rust colors, sprayed with hairspray, and then over-coated with a cream color and some orange stripes. The same chipping technique was used there as on the Rook (futuristic one). Lots of pigment was added to both in order to dirty them up, as well as a wash or two of dark, in order to bring out the details.

On the diorama, I added a bit of dirt and some sprigs of longer grass between the rocks. The figures were painted and added in there as well.

With all that said, let's get on to the photos! Click on the image below to get to the gallery, or click on the menu on the side bar.

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Hairspray and High Voltage!

In this post, I'm going to cover just two things: a new (to me) weathering technique that uses hairspray and the construction of a DIY electrostatic grass tool. Both of these things were totally new to me, although I had read a good bit about the hairspray use and had watched a video about the grass tool.

First, the hairspray: The basic premise of hairspray weathering is to spray a base coat of paint in a color that you want to see when the top coat chips away. Then, once that is dry, you give your model a few coats of the cheapest hairspray you can find. Once that is totally dry, you spray on a your top coats. Then, you can wet areas of the model, the water will soak right through your top coat (I think this only works with acrylics) and will soften the hairspray. You can then poke at your paint with a toothpick, cotton swap, etc and the top coat will chip off, revealing the under coat. Magical paint chips!!

To start with, I sprayed my model with Tamiya Hull Red as the base coat. Next, to break up the paint, and add some dirt/rust details, I mixed up a batch of paint that consisted of mostly Vallejo Flat Earth, with some MIG pigment in Light Rust. In order to keep it from getting too thick and to keep with workable for longer, I added a small amount of Vallejo Retarder Medium (slows drying) and Thinner Medium (reduces thickness).

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I used a small piece of natural sponge to dab it all over the model. After the first pass, I added a bit of Standard Rust pigment to the paint mix to get a redder shade and went back over the model again. Below you can see the model after all the under coat was applied.

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Next I took it outside and gave it two or three coats of hairspray. Be generous, as it doesn't seem to bulk up and shouldn't add any strange texture. If you wanted to prevent some areas from chipping at all, I'm sure you could mask them. As far as what sort of hairspray to use, I don't think it matters much (I'm no hairspray expert), so I recommend just getting the biggest/cheapest can you can find. If there is such a thing as waterproof hairspray (Google says there is), you do NOT want that. The whole premise of this technique is that the water dissolves the hairspray later, so if you used waterproof hairspray, you'd be out of luck when it came time to chip the paint.

Below you can see my model with the hairspray applied and dry. It dried to a semigloss finish.

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Next came the top coat. In my case, I first put down a coat of light grey, with the thought that it would make for more interesting chipping later as well as give me a more neutral base to paint over. Next I used Tamiya Field Blue as the main color, and then went back and lightened the panel centers with the same color mixed with a bit of light grey.

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Then the fun began! For water application, I just used a cotton swab, and painted water on a small area at a time. I would swab on some water, wait a few minutes (the paint texture changes a bit once the water is soaked in) and then I scraped it a bit with a wooden toothpick that had been cut to a chisel point. I thought it worked great! In fact, I had to be careful not to take off too much of the top coat, as once the hairspray is wet, it is very easy to get the paint off.

Below you can see some finished chipping on the tank legs.

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Below you can see how the paint texture changes once the hairspray is wet and the paint is ready to scrape. Fortunately, the paint does flatten back out once things dry. The only catch is that the hairspray does mix in with the water during the process and once things dry, some of the semi-gloss finish that we saw earlier will be present on top of the flat paint. Nothing a bit of Testors Dullcoat won't fix later.

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Next we turn back to the base. Before I could get to grass application, I needed to paint it. I was going to follow the standard order of preshade-with-dark, main color coat, sponge to break up some areas and dry brush to pull out details.

Below you can see the first pass of pre-shading.

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Next was the various color passes. My idea was to try to make this look like an old unused road, so I masked the road lines off and just dry brushed the lines on, so they were old and faded looking. Everything will get a good deal more dust and weathering later on, in order to blend it all together.

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I was hoping to use electro static grass on this base, in order to get some nice grass on the upper area and in the nooks and crannies around the rocks. I knew there were various devices that one could buy in order to apply the grass and get it to stick up nicely. Once I actually went to BUY one of these tools, I was in for a bit of sticker shock. As much as I enjoy getting a good tool, I couldn't justify spending $150+ just to do my little diorama. With a bit of searching around, I ran across a video on youtube showing how to build your own grass applicator using a few cheap parts and a little bit of work. I decided to give it a try.

Here is the video I watched first, if you'd like to give it a try. Have a watch and then see what I did afterwards.



I'm no electrical engineer, but here's a little bit about how some of this stuff works, as I understand it. The bug zapper that I ended up with takes two AA batteries. If you touch both ends of a AA battery, you don't get shocked. The 1.5 volts that that battery puts out is not enough to get through your skin, bones, etc. Even stacking up the two batteries, giving you 3 volts, still doesn't result in a shock. So, in order to be able to zap bugs, the bug zapper has a small transformer in it that boosts that voltage up to something like 15000 volts. That ends up being enough to jump across small gaps and also fry bugs. The way the bug zapper works is that it then routes that current into the various layers of the racquet, which are spaced closely, but far enough apart that the current can't jump across. In the case of mine, the outer layers got the negative terminal and the inner layer got the positive. When you swing that thing as a bug, the bug passes through the holes and probably hits both layers or is close enough to both for the current to jump across the gap, through the bug, completing the circuit, and electrocuting the insect.

Our goal is not to electrocute anything, but instead use all the static electricity that is generated by that high voltage to make our grass all stand on end. With the ground of the zapper attached to the glue on the base of the diorama, and the positive current attached to the strainer, the static grass flocking should fall out of the strainer a few hairs at a time, stick to the glue on the base, and then stay standing up because they are attracted to the strainer's static charge, the same way your arm hairs stand up when you hold a statically charged balloon above them. So long as the glue is fairly thick and sticky, the hairs should just stay where ever they land, and you'll get a great looking patch of grass.

With that said, PLEASE BE CAREFUL. While I don't think this is strong enough to do any extreme damage, it is probably enough voltage to give you a good shock, a small burn, or some other unpleasant injury. If you decide to try this yourself, be very careful and don't leave any of this stuff laying about where a curious child could get ahold of it.

Okay, with the legal disclaimers out of the way, let's get down to business.

I was far lazier than the fellow in the video and just went to good ol Amazon for my parts. Since I've got Amazon Prime, I wasn't concerned about shipping cost, so I order up the following parts:

Zap Master Bug Zapper - $6.97
Stainless Steel Mesh Strainer - $6.71
Insulated Alligator Clips - $3.99
Insulated Solid Wire (lots) - $20

Obviously, I got way more wire than I needed, but it was time for me to stock up anyway, so you can ignore that one if you already have some wire laying about that you can use. Same with the alligator clips, as that $3.99 was for a pack of 10. Also, I bet you could find a cheaper mesh strainer at a local dollar store, if you were concerned about the budget or just wanted to keep it under $10. Below you can see the parts that I ended up with.

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Taking the bug zapper apart (be sure there are no batteries in there!), you can see the circuit board that does the current transformation and that has the activation button on it. Unlike the zapper in the video, all the components on mine are under the board, so harder to see. The first order of business was to get rid of the old wires that came off the board and replace them with tougher and longer ones. This requires desoldering the old wires, and in the case of my zapper, melting and soaking up some protective wax that was over the various contacts. Below you can see the board with my replacement red wire coming off the left side of the board. This will be the wire that will contact the metal strainer.

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Once the longer ground wire is attached (I made mine roughly a foot long), I had to figure out how to attach the strainer. I had a bit of scrap aluminum around (from my bag of scrap bits that I got at the hardware store ages ago), so I just made two little strips, and drilled holes in the strips and in the handle of the zapper. The strainer handle needed to be cut a bit shorter in order to fit, and then the whole thing could be bolted together. I was originally going to solder the red wire to the strainer handle, but it ended up being easier to just sandwich the wire between one of the plates and the handle.

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Next, I put the other side of the handle back on, and attached one of the alligator clips to the ground wire and I was ready to flock!

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How this works, step by step:

1) Mix up your flocking grass. I mixed roughly equal parts 'Medium Green' and 'Burnt Grass' from Woodland Scenics in order to get a more natural mix of color.

2) Spread some undiluted scenic cement (or maybe Elmers white glue, or PVA glue) on to whatever you want to flock. Apply it in such a way that all the glue is contiguous. The electrical current needs to be able to get to all the glue, so no glue islands!

3) Poke a small nail into the glue somewhere (preferably somewhere that the little hole won't be noticed) and clip your negative wire to the nail.

4) Put some of the grass mix into your strainer bowl.

5) Hold your strainer bowl over the glue (a couple inches above, don't let them touch!), press and hold the button on the zapper handle (red light should illuminate), and gently shake your strainer over the glue until it is all covered.

6) Err on the side of too much grass, as you can always shake off the stuff that doesn't stick later and it is really hard to put another coat of grass on later, since you'd have to paint the glue on over your first coat of grass.

Following those steps, here is what I ended up with on my test patch:

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As you can see, I left the glue off of the rock and the toe divots. I was pretty happy with how the grass stood up, but still felt fairly natural. If you wanted patchier grass colors, you could mix your grass colors a bit less that I did, so you got clumps in the strainer, which should give you areas with a bit more of one color or another as you go.

Below is a side view of the same area as above.

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And that is that! Next up for me is some weathering on the base, and painting on the other tank.

Thanks for reading!
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Continuing Construction

At the end of the last blog post, I had just tacked everything together and tested to be sure it all fit properly. The next step was to solidify all the leg joints and make both models able to support their own weight. So, without further ado, let's get right to it:

Below you can see all of the legs glued in place. For the tan legs on the right, this was a fairly simple matter of cutting the pistons to the correct length and then epoxying them in place. For the grey legs, I left them in place on the base and dripped a bit of thin CA glue into each joint, so that each leg was locked into its correct position.

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Since that thin layer of CA isn't really going to hold up very well once weight is put on it, I then spent some time drilling holes through each joint and inserting brass rod. The idea was to get the rod all the way through each joint without actually poking out the other side. My hope was that this would give the joints something better than the friction of the CA glue to support them. So far, it has worked very well.

Below you can see a tiny drill bit mounted in the Dremel extension thing (easier to handle in small spaces than the whole Dremel). The little tape tab is there so I know how deep to drill.

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Once the legs were all locked in place, I put a little extra spackle on the base and squished each foot into the ground so that they had little footprints to fit in to. This both made it look like the model is heavy enough that it is digging into the ground and gives me registration marks so that I know exactly where the model is supposed to fit onto the base. Below you can also see a missing toe on this foot. I have no idea where it went! I didn't notice when it broke off and, despite searching all over the place, I couldn't find it. So, I'm just going to put some extra rust there later and pretend like it is supposed to be like that.

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Moving along to the leg armor plates, a number of them called for grab handles. This was just regular old brass rod, bent to shape.

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The photo etch that comes with this kit is interesting in that it builds up into large shapes that fit into some of the vents on the upper body of the tank. Below you can see the component parts and assembled collection that fit into the main exhaust tubes.

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There are similar etch assemblies in the smaller square vents. These fit well, but had the tendency to fall through the holes they were supposed to cover. As you can see below, I just glued on a few strips of styrene in order to give them a little lip on each side and keep them in place.

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The instructions also pointed out various places where wire grab handles should be added. Like on the leg armor, these were just simple bent brass wire. In this case, though, the wire that I was using was a bit brittle and tended to snap when bent. In order to soften it up a bit, I annealed it with a torch. For those unfamiliar with this process, I took the brass wire in some pliers (it gets hot!) and slowly passed it through the flame of a butane torch. The goal is to get the metal red hot, but not so hot that it starts to come apart or distort. Letting the metal cool in the air results in a much more pliable bit of wire. The wire is far softer and much easier to bend.

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With that done, it was time to start putting everything together. Below you can see the leg armor plates held in place while epoxy cures.

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Below you can see the legs clamped in place while the epoxy cures. If you look at the base of the lower left leg, you can see various marks. I put those on there to keep the legs sorted, so that I knew which one went in which spot and at which angle. This should, in theory, result in the legs all being just right when I place the model back on the base.

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I say, "in theory" because, after everything was glued and assembled, I placed the model back on the base and the leg that was in the left corner was hovering about 3/8 of an inch off the ground. Not sure if there was a good way to fix it, I decided that that was a good place for a rock!

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Back on the future-y tank, the kit had come with a photo etch version of a little railing around the hatch. Given the scale, though, this rail seemed much too thin. I decided to have a go at building my own version from some brass rod and solder. I tried a few methods of soldering using the tools that I had, but it was pretty messy and I managed to incinerate a few pieces of rod by accident. What you can see below is the second version (the blackened surface came from the first version). I have since read a brief article in Fine Scale Modeler magazine about working with brass, so the next time I do, I'll be a bit better off. Anyway, with a bit of filing and sanding, some drilling on the resin, and a spot of CA glue, the railing was cleaned up and attached around the hatch.

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A bit more wire bending got me some protective bars around the sensitive equipment hanging under the front end of this tank.

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Similarly, the other kit came with some plastic-coated wire to act as hydraulic hosing for the leg pistons. Unfortunately, this wire was not easily shapable and when added, really seemed out of scale. Having just done a bit of soldering on the other tank, I decided to replace the kit wire with some thin solder, since it is so easily shapable. Also, instead of just letting it hang free (which seemed implausible to me, as far as tank design goes), I added a few styrene brackets on the sides of the joint plate, so that it looked like the hosing was held in place.

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And, with the exception of the gatling gun that goes on the front of the grey tank (and that is fragile!), that wraps up construction on the two models. Below you can see the unprimed models, on the incomplete base.

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Turning back to the diorama base, it was time to start adding things to it. First was the guard rail. If you recall from the last post, this was made from some sheet copper that I had in a bag of scrap metal bits. In order to attach it to the styrene posts, I just used a small drill bit in the Dremel and drilled through the copper, into the posts. I then made some small bolts out of the top 1/8" of straight pins and used those, with some thick CA, to attach the metal parts.

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Next up, it was time to add some different sizes of rocks, gravel and sand in order to start to blend things all together. I picked up a few bags of model railroad decoration from the local hobby shop.

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Below you can see the three stages, from clean to primed. I simply worked from large to small. First I added the largest size of rock, clustering them around the base of the hill, then the next size down, clustered around the larger rocks, etc. I decided that the road needed a bit of texture, as the base spackle was just too smooth. I was going with the premise that this bit of road has been long since abandoned, so it wouldn't be super clean and smooth. So what I did was to add a layer of the finest gravel/sand that I had onto the road surface. It ended up a little bit rougher than I had hoped, but I think I'll be able to make up for that with a bit of weathering and dirt on the road later.

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With a couple coats of primer on the tanks and base, that should wrap up construction. All that is left now is a great deal of painting and an attempt at flocked grass.

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Tune in next time (very soon!) for my attempt at a new (to me) weathering technique and my shot at building a flocking device out of a few cheap parts.

Thanks for reading!
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Resin and More Resin!

So, at the conclusion of my last post, I was all ready to spend a bunch of time practicing car paint finishes. Well, I did that briefly and discovered that it was pretty boring. Without a real end goal to aim for, I lost interest pretty quickly. So, since I am dealing with some resin-related things in a side project, I decided that I should to a side-by-side build of two resin kits that have been in my collection for a while. They are similarly themed, both being walking tank sorts of designs, but they are very different kits.

First of the two is a heavy walking tank kit from MIG Productions, who are more commonly known for their pigments:

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Along with that kit, I'll be building a more futuristic walking tank kit, the Rook, from Industria Mechanika:

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Before I get into construction, let's compare and contrast the two kits. Industria Mechanika's kit consists of a very large number of parts (many of which are in the bags seen below), cast in an opaque grey resin. This is accompanied by a few pieces if brass rod, to be bent into grab handles and two sheets of photo-etch. It also includes two figures in the form of pilots that fit into the cockpit seats.

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The casting quality is some of the best I've ever seen on a resin kit, with most of the parts having a small tab left on them, which doubles as part identification numbering. Generally, though, there are almost no large pour blocks on any of the parts. There are a few areas where a thin sheet of resin is left, that needs to be trimmed away, but I personally find this to be much easier than having to cut/sand a large block of resin away. The quality of the resin on this kit is very plastic-like, in that is is not too brittle and carves easily with an x-acto blade.

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The MIG kit is cast from a tan resin, which is a bit more standard in cast resin parts. This kit is nearly all resin, with a bit of tubing for hydraulic hoses.

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This resin is a bit more brittle than the grey resin seen above and has the more commonly found pour blocks, bubbles and need for a great deal of clean up. It also requires a good deal more shaping, drilling, etc in order to get it all to go together. Overall, though, the fidelity of the parts is still good. Below you can see some of the parts with their pour blocks still attached.

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I decided to get started with the MIG model, beginning with the legs. I found that most of the leg length, on the outside, would eventually be covered by an armor plate, so I did a fairly rough clean up job. Below you can see the trimmed parts, with the various hinge holes drilled out.

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These legs are held together by resin pins that go through the drilled out holes. Then, the leg position is held by hydraulics, part of which needs to be cut to length. This means that each leg consists of four main parts and a bunch of pins and cylinders that hold the big parts together. Below you can see the four legs with the pins in (not glued yet), but without any of the hydraulics.

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Next, I put the hydraulics in place, but just kinda stuck on there, so that the legs were easily positionable. Then, using some museum tack, I stuck the legs onto the central body part, making sure that they all fit, etc. Below you can see it standing on it's own (although precariously, since nothing has been glued yet).

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It was at this point that I realized that in order to be able to glue the legs into the correct positions, I'd need to know what they were standing on. This meant that I needed to stop the leg building and start figuring out what the diorama was going to look like. I decided on a rough base size, and then made myself some handy paper cutouts that were about the size of the finished tanks. In order to get an idea of the Rook kits size, I rubber-banded together one leg, stuck it to the body and guessed from there. Below you can see my two tank cutouts and my indication of where I wanted a road to be running. I got the width of the road by taking a standard two lane road with and dividing by 35, since the tanks are 1/35 scale.

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My idea was to have a road running through the scene, with a bit of a rocky hill next to it, separated by a guard rail. This meant I could have some interesting terrain, with both tanks in there, but separated a bit by both height and what they are standing on. I'm hoping to get a few figures in there as well, but that is for a later blog post. In order to get a base to work with, I just cut a piece if 1/2" plywood down to size and got myself a bunch of floral foam from the craft store. Below you can see it roughly cut and glued to the board.

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Next, I kicked around a few ideas for large rocks and was planning to use some stones I found outside, along with some sculpting, but then I ran across these rock molds when I was at one of my local hobby shops. The mold was only about $10, and I knew my wife had some two-part plastic resin at home that I could appropriate, so I bought the mold and decided to give it a try. Below you can see the mold, which I believe was intended for railroad decoration building.

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