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Armour Workshop • View topic - PzKpfw I Ausf.A ohne Aufbau ~ Tristar

PzKpfw I Ausf.A ohne Aufbau ~ Tristar

Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Jamie Tainton » Sun Jan 31, 2010 12:28 am

Well guess what, had a bit of a set back. While trying to fit all the floor parts in I had to file some of the right hand side, which caused some problems and I also noticed that here and there the joint was weak on some of the framing. One leg on the right hand frame was broken because of metal fatigue. Basically I had to drop all the metal into the lacquer thinner and stripped the paint back to raw metal.one of the reasons I like metal- easy to remove paint without damaging the parts. Try dropping plastic into lacquer! ;woot:

Anyways this allowed me to re-solder some weak points and also repair the leg. I also was able to then after cleaning to use a rattle can of metal primer from Tamiya. A small amount decanted into the airbrush cup was all that was needed.
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This will provide a better base for the red primer and green colours that will follow. I also took the opportunity to rework the two clasps that are on the right hand side of the hull wall. These were used to hold a container housing spare machine gun barrels I believe. Since this is a trainer vehicle there wouldn't be any need for this item. The Tristar instructions also indicate this as well but there are no clamps, which would most likely be left behind. I also made the effort to use some solder to secure the handles of the clamps in place rather than CA as I did in the first time. Everything was tidied up and I'm happier with the results.
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A couple of other detail parts readied for paint and gluing. I have found that the tolerances for everything to fit inside the hull to be very very tight. Because this is my first time using this kit to detail one of these Tristar's Pz I/As out I am trying to have access to all the storage areas under the floor plates. But this may be a bit anal. I guess it seems a shame to just cover up all the inner workings. I would recommend that the whole floor section, floor plates and framing, could be soldered together and made square and secure prior to installing. One may even want to construct this all before gluing the plastic side walls onto the hull-just to assure a good fit.
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I also had to fix the centre hub section as it was to wide at the front end. The metal end pieces needed to be removed cleaned and then annealed and reshaped to a slightly narrower width so the plate framing and plates would fit better it was too tight before. Thus the previous comment about tolerances ;) These were then re-glued to the stripped resin part and everything was secured to the floor again. Much better this time.
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The Aber set even has replacements for the funny little S shaped parts that go on the strengthening bar of the suspension. Pretty difficult but I got two good ones.
It takes three pieces to make one.
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The return rollers also have replacements for the centre hubs. I don't know if it is very much of an improvement but because I have this compulsion to use all of the Aber parts, at least once I went ahead and used them.
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Next up you can see I am getting some caliber 35 resin nuts ready for the adjustment rod that is at the back of the rear suspension part. You can see them threaded onto some brass rod. The rod will be cut to size and fitted in a drilled out hole in the plastic part and glued to the square metal part. The Aber nuts are to thin in my opinion. I also added one to the inside of the rectangular opening- Aber doesn't indicate to but references say there is one there as well as the two on the outside.
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The idler wheel needs some fixing up to fit onto the diameter of the brass axle that will be threaded thru the side of the metal square part. Basically using brass rod to create some sleeves.
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After that the metal can be sanded flush.
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Here you can see the parts needed for the road wheels, a different approach than how DML did theirs with metal rings.
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The rings are very fragile and for cleaning up of attachment points I threaded them over a big paint brush handle before sanding.
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Make sure you glue the rings facing out the right way The flat side should be facing out.
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Couple of comparison shots showing the re worked part and the original.
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Johannes » Sat Feb 06, 2010 8:43 am

Amazing work =)

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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Jamie Tainton » Sat Feb 06, 2010 6:46 pm

"Don't believe everything you think"
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Jamie Tainton » Sun Feb 07, 2010 4:24 pm

the transmission also clear coated.
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the floor plates and structure
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The rear wall and one of the tool boxes
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The inside, with the seat added just for fun- (not glued). This will get a wash of raw umber as well and then that will be wiped back the next day after it has dried.
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Sans chair
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I have been wondering if I have made an error with the positioning of the two forward clamp parts on the front axle. The sit of the transmission perhaps is too high and I wonder if the clamps are interfering with the proper sit of the transmission, perhaps it needs to be lower? But this goes against other fitting issues such as the seat and the control stick on the right. The tolerances are very tight on this and the instructions are just not clear enough! I am happy enough with how it all goes together but because of lack of interior shots of the real thing with everything in place I',m kinda just going by braille.


The wheels painted with the grey straight up, no primer.
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Some progress shots of the control panel and front sloping armour.
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A bit messy here but it will all be cleaned up with steel wool.
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The biggest challenge is getting the curved pieces of brass rod eaqual and shaped right. Then soldering it all together without it all falling apart!
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The strengthening bar for the lower suspension added after the developers saw the suspension was just not strong enough. The Aber instructions are really not very good for positioning of the S shaped parts here, the holes all have to line up but in the Aber instructions the S part is at the back end- incorrect.
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The parts for the tube that runs out of the transmission/braking area- the hose was to remove the smoke that was created when those things were used!- I love being able to add these minature versions of the real thing.
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The part is coated with flux.
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the part laid on top of the flux
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Next a tiny piece of solder is cut from the strand. This will be placed on top next to the gasket and with the soldering iron tip touching next to it, the spot heated to the point of liquidation. Solder is cool in that it follows the heat and if two parts are heated together the solder will actually suck up in between them with little trouble.
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Applying heat
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A rough melt-will be cleaned up with application of more heat.
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The curved part in place
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More test fitting a constant procedure during this build.
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Dan Reed » Mon Feb 08, 2010 7:05 pm

Great job here! thumb3
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Jamie Tainton » Mon Feb 08, 2010 10:28 pm

Thanks Dan- just stumbling along- next time it'll go easier, I hope.
Stuff keeps cropping up but I seem to be getting through it.
For the wash to bring out some of the details I used artists oils that have been kicking around for years. Raw umber was the only one I used on the initial coat.
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Everything ready for the wash.
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Let the sauce begin...
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Next, just so the areas hard to get to once I start putting the wheels on get a good coat of paint, I sprayed some more grey. As you can see there is a little bead along the top of the side wall that was taped off, this is were the fender will be glued.

You can see I'm starting to try out how the rear engine deck and how it fits on the hull.
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The fenders are getting some attention again.
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I'm going to have to remove the molded on flange- the Aber set comes with one that will look better. It will be sanded of so the lower panel is flush.
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Dario Risso » Tue Feb 09, 2010 5:25 am

Amazing details, as always ! :Y)

Hey, James...look...a young skinhead has usurped your avatar :D

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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Dan Reed » Tue Feb 09, 2010 7:00 am

German AFV are painted in a complex of colors aren't they? Very time consuming in the model world and in the real world.
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Jamie Tainton » Wed Feb 10, 2010 12:33 pm

Thank you kindly dudes,
Next up is the Aber jack holder. This will take a lot of work for such a small item- no less than five parts to make one up.
The main part needs to have rivets embossed and folded onto itself. There are some hinges to deal with as well.
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I use my trusty etching drawing tool for the embossing.
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The start of the folding
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Re: Panzerkampfwagen I Ausf.A ohne Aufbau

Postby Jamie Tainton » Thu Feb 11, 2010 5:11 pm

Here's a shot showing the mess at this point!
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Next the Aber horn parts are shaped- you need to anneal the part that forms the cone so the metal is malleable and easy to curve over, in this case a wooden skewer.
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The part soldered this will be sanded smooth. There are two other metal parts to add to this. At this point I find the Aber instructions are not very clear as far as how this unit is to be attached to the fender or front sloping armour- the drawings are contradictory. I also have yet to find a clear picture that explains this mounting point.
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Here you can see the dark oil wash is dry and will be wiped back with a Q-tip that has a minuscule amount of paint thinner.
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