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Author Topic: Trumpeter 1:48 Scale VIIc (static)  (Read 20072 times)

Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #25 on: February 21, 2017, 08:48:52 PM »

O.K., bow torpedo room is pretty much done. The kit is lacking detail around the torpedo hatches. There is no inner structure whatsoever, so I have to build that on my own. Using a contour gauge I start by making the bow bulkhead out of 1 mm styrene.







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ballastanksian

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #26 on: February 21, 2017, 09:10:53 PM »

Excellent work Dr.
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #27 on: February 26, 2017, 11:52:19 AM »

Still working on the inner structure for the bow. I've added the bulkheads, struts and plates to form ballast tank 5, which was located in the bow around the torpedo tubes. On top of the tank was the anchor winch and the air release valve. Those will be added later. In the tank, between the tubes , was the box for the anchor chain. I fabricated the box out of styrene.



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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #28 on: February 26, 2017, 06:47:04 PM »

With anchor winch, spare torpedo compartment, compressed air botlle it starts to look like something....
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tsenecal

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #29 on: February 27, 2017, 04:53:38 PM »

It is simply amazing what you are adding to this...  it is just too bad that for the amount of money this thing costs, that detail wasn't already there.
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #30 on: February 28, 2017, 07:15:50 AM »

I think it's not too expensive given the size of the kit and the number of highly detailed parts. But I agree that the bow could be equiped a bit better.
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #31 on: March 02, 2017, 08:57:25 PM »

Working on the muzzle doors of the torpedo tubes. They are equipped with PE hatches from a  set by rcsubs.cz
Quite tricky getting them soldered together. But together with the actuation push rods they look quite nice.



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ballastanksian

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #32 on: March 03, 2017, 08:13:21 PM »

I wonder sometimes if the product design department have an R&D budget, and when they near its limit they have to make decisions about what they can include in the kit. I would thinkthat with things like cars or Tanks, they will be pretty aware of what they have the money to do, but developing more involved subjects like Subs may be  more of a journey.

Lovely work especially with that complex chain locker!
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #33 on: March 05, 2017, 08:46:34 AM »

Continuing with adding details around the muzzle door and the vent valve:


The vent valve is a knee shaped exhaust and it will get a hatch and the actuation mechanism:


For those who are interested ho the venting system on a VIIc worked, here's a nice picture:


And everything still fits nicely in the hull:

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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #34 on: March 08, 2017, 07:48:19 PM »

Almost finished with the bow structure. Added the bulkheads for the forward buoyancy tank. A tank that surfaced is above the waterline and which helps to limit the bow cutting into heavy seas. When submerged, this tank is vented like a standard ballast tank.



I've also reworked the supports fr the compressed air bottle that was located in the buoyancy tank, to make them a bit more like 3D objects and not just flat pieces of styrene.



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ballastanksian

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #35 on: March 08, 2017, 10:19:53 PM »

Astounding attention to detail Dr.
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #36 on: March 10, 2017, 04:25:10 PM »

O.k. the 3D-printed pats for the vent valve actuator and the respective hatch arrived.Basically it was a thread rod-driven knee joint.



The valve was driven by a hand wheel in the control room. Outboard transmissions drove the thread road. Those will be added later. Looks quite good installed:   

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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #37 on: March 17, 2017, 09:42:34 PM »

Wrapping up the bow section. I began adding the ribbing on the inner sides of the hull. Also the front torpedo storage container is installed (I added some mounts).


Also added some supports to the platform of the vent valve actuator of ballast tank 5. And it got its drive shaft.


The bow buoyancy tank will also get a 3D-printed vent valve. It was operated from the bow torpedo compartment by a handwheel that actuated an angular wheel gearbox.   


I reproduced the gearbox using brass and resin:


Gearbox glued into place, PE handwheel installed and painted.

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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #38 on: March 25, 2017, 07:08:53 AM »

The 3D-printed vent valve for the bow buoyancy tank arrived and is installed. Flimsy little thing.....



Also the drive shafts for the actuation of this valve are done.


The hull got the internal ribbing. Slim ones for the wet part, and thick ones for the interior of the pressure hull.


I also started working on the next room and found a first problem. The battery arrangement is wrong. To fix this, I had to cut the battery cells about 4 mm short - now they are correct. To add the missing cells, I'll make a silicone mould and cast the needed cells in resin.
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #39 on: April 05, 2017, 09:26:48 PM »

Working on the officers room which alo holds the sonar room, a toilet, and the radio room. It's pretty straight forward, but it requires allot of painting wood panels.





A side wall of the sonar room with the GHG console:



And tons of tiny boxes with allot of knobs and indicators. Ideal for training a steady hand....








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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #40 on: April 16, 2017, 05:43:33 PM »

Continuing with the build of the officers' room. The beds, the sonar, and the radio room are assembled.





Under room for the crew is the forward battery room, the ammo storage, waste and fresh water tanks and all that surrounded by the forward oil bunker. The battery setup in the kit is wrong and incomplete. I shortened the battery cells and cast additional ones from resin for the back rows of cells. Then tedious painting......



I also made the battery service sled from brass wire and styrene sheet.



I also changed allot with respect to the structure of the battery room. The ceiling got two rail for the service sled. The back wall is the inner wall of the oil bunker, that surrounds the battery room. The rectangular structure in the lower left is the waste water tank.



And I'm quite pleased with the look of the assembled piece:

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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #41 on: April 18, 2017, 05:29:03 PM »

Test fitting of the second section....looks good! But still allot to do. I designed some cool ammo boxes for the ammo bunker. The things in the kit don't hold up to the standard of the rest of the model. The ceiling of the officers rooms has to be painted and the LEDs installed. So enough to do before I can start with the control room.








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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #42 on: April 27, 2017, 10:11:06 PM »

This time only one pic...the work of the last two weeks: The wall of the central control room. Quite some work as there are so many details to paint and weather.

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ballastanksian

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #43 on: April 28, 2017, 08:57:03 PM »

And that forest of handweels can only be the inner layer of the dozens you will be installing no doubt! I really like what you are doing with this model Dr. The kit may as well have been a cardboard tube given all the hours you have done on it, and you are not even half way through yet.

The Officer's space is excellent, but the mechanical details of the front compartment is most impressive.

 :-)) :-)) :-))
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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #44 on: May 08, 2017, 06:04:17 PM »

Still wrapping up the officers rooms and the battery deck, but I also started on the structure for the control room. The lower decks section is completely wrong again and a mere copy of the CMK resin kit for the 1:72 Revell VIIc. The control room floor has a second floor called Bilge, where waste water accumulates. The front part of the lower deck is part of the bow fuel oil tank. Then comes ballast tank 3, followed by the aft fuel bunker. The ballast tank has been enhanced by additional bulkheads and pressure tight end caps (3D printed). The Bilge was modeled using styrene. A bit of weathering and that thing looks like something....

 


A scratch built detail in the ammo bunker  below the officers rooms: A shelf for aluminum ammo boxes. The boxes were CAD-modeled, 3D-printed, than a silicon mould was taken and the boxes reproduced using resin. Thee frame of the shelf is styrene again:

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Dr.Schmidt

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #45 on: May 10, 2017, 07:04:44 PM »

Rough test fitting of the components for the control room:





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Akira

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #46 on: May 11, 2017, 01:27:18 PM »

I had thought of attempting this kit. After seeing your build, I will not embarrass myself by attempting it.
Jonathan
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ballastanksian

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #47 on: May 11, 2017, 10:12:32 PM »

What is the large boiler like construction in the middle of the control room?
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tsenecal

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #48 on: May 11, 2017, 10:59:14 PM »

What is the large boiler like construction in the middle of the control room?


if i am not mistaken that is the cylinder in which the attack periscope resides, when it is lowered.
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ballastanksian

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Re: Trumpeter 1:48 Scale VIIc (static)
« Reply #49 on: May 12, 2017, 11:05:32 PM »

I did wonder but was distracted by the size of the cylinder.

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