TAMIYA M1A2 Displaymodel

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Postby kintaroukinji » Fri Jul 26, 2019 7:33 am

For the detail improvement of the Tamiya 1 / 16 M1A2 Abrams display model, I started to work around the Loaders hatch. There are many abbreviated and simplified parts here, but I need to decide how far to remodel. I would like to detail up at least the part expressed by M1A2 of MengModel. I referred to this real tank photo published by MengModel.

A shield that surrounds the Loader's M240 machine gun area. Because the protective shield in front of the machine gun has a fairly special shape, it took time to fully scratch. Thick bulletproof glass is in both the outside and the inside. The bulletproof glass is slid in from the top, and the top is held and bolted with the cover. I made this with plastic material. Since the boundary between the vertical and horizontal parts is an oblique cut shape, the plate material is bonded vertically, the triangular plastic bar is bonded to the corner, and the diagonal cut is made from the outside. I used a 1.7mm transparent plastic plate for the bulletproof glass part. There is also a protective shield on the side of the machine gun. Inside this shield, a diamond mesh is attached over the bulletproof glass. According to the commentary, this wire mesh protects the glass from errant feet stepping on it when this shield is folded down.
Since this machine gun is often attached with a sightscope, I also scratched it.
In addition, a protective plate is attached to the left and bottom of the gun seat. I have scratched these parts.
Attachments
DSC_1804_546.JPG
M240 Loader's shield
DSC_1807_547.JPG
DSC_shield1_549.JPG
DSC_shield8_548.JPG
Loaders shield.jpg
real tank photo published by MengModel

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Postby kintaroukinji » Tue Aug 06, 2019 9:14 am

This is a coaxial machine gun that I got from Shapeways of 3D printer.

However, the size and shape of the ammunition box are strange. The width is narrow and the length is abnormally long to store 12.7 mm ammo. The upper part of the cartridge receiver is not open. I can not use it as it is, so I cut them and scratch it again with a plastic plate.  I made amunition to cut a 1 mm brass rod and bite it into a mini router to form a tip. They were placed and glued on black 0.3 mm t plastic strips at equal intervals, and a strip of printing paper was applied on top of them.
If you need flexibility for ammo belt, make both sides of paper instead of plastic. This method is useful. (More sophisticated 1 / 16th scale ammunition is also available but expensive.)

Because the barrel moves up and down, this cable duct also needs a hinge in the middle. (Same for actual tanks)
In addition, this model has a structure that removes the upper part of the turret, so the junction box of this cable duct can be removed.

I thought that this machine gun would also be able to emit sound synchronously and that the light attached to the machine gun could also be turned on (USM-HL-2 would be easy to add these functions as long as wiring and LED could be installed), but as for now I will refrain from working so hard. I would like to conclude by making an additional bustle rack at the rear of the turret and modifying the useless part of this model.
Attachments
DSC_1806_551.JPG
coaxial machine gun( Shapeways of 3D printer)
DSC_1820_553.JPG
Coaxial machine gun rebuilt ammo box
DSC_1836_557.JPG
Cable duct and junction box for coaxial machine guns
DSC_1839_559.JPG
This shows the state with the junction box removed. The junction box is fixed by inserting it into the hole on the turret from above.
DSC_1841_562.JPG

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Postby HERMAN BIX » Wed Aug 07, 2019 10:41 am

Sensational work mate. Sure is a lot of details on these modern things !
Thanks for sharing your pics,.
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Postby BarryC » Wed Aug 07, 2019 11:50 am

Coming along nicely sir. :thumbup: :thumbup:

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Postby kintaroukinji » Wed Aug 07, 2019 3:23 pm

HERMAN BIX wrote:Sensational work mate. Sure is a lot of details on these modern things !
Thanks for sharing your pics,.


Thank you for your comment.

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Postby kintaroukinji » Wed Aug 07, 2019 3:28 pm

BarryC wrote:Coming along nicely sir. :thumbup: :thumbup:

Barry


Thank you for your comment.
I have a lot of references to your wonderful production articles in my production.

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Postby kintaroukinji » Sun Aug 25, 2019 2:17 pm

I made an additional bustle rack from scratch. At first I was wondering whether to make it with plastic or brass, but because the bustle rack of this model is a plastic material, the strength of each other will be different if only the additional bustle rack is brass. So I made it with plastic material. The details of plastic materials are still inferior to those of metal, but the processing of the materials is still easy.
Attachments
DSC_1861_01.JPG
Last edited by kintaroukinji on Tue Sep 03, 2019 7:29 am, edited 1 time in total.

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Postby c.rainford73 » Sun Aug 25, 2019 2:41 pm

That looks fantastic well done :wave:
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Postby BarryC » Sun Aug 25, 2019 3:04 pm

c.rainford73 wrote:That looks fantastic well done :wave:


I'll second that! :thumbup:

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Postby Son of a gun-ner » Sun Aug 25, 2019 3:52 pm

BarryC wrote:
c.rainford73 wrote:That looks fantastic well done :wave:


I'll second that! :thumbup:

Barry

Thirded :thumbup:
For plastic it looks solid, really well done :clap: :clap:
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Postby kintaroukinji » Mon Aug 26, 2019 12:54 am

Thank you for your comments.

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Postby kintaroukinji » Mon Sep 02, 2019 6:43 am

In this model, the corners of the joints between the side skirt and the rear panel are connected in a solid state. 
In actual tanks, the corners are connected by hinges, and the side skirt and rear panel can be removed by pulling the pins upward.

DSC_1829_01.JPG
corner of rear side skirt

The production of the additional bustle has been completed, and the remaining attention is the APU on the turret bustle. The APU of this model was installed in the ABRAMS early stage (M1A1 or M1A2 early stage), and is now replaced by the enhanced VCSU (Vapor Compression System Unit). Since the shape is completely different (and it is more compact), I was wondering whether to make from scratch or not, but considering the generation of other installed devices, it seems strange that APU is installed. So I decided to make the VCSU from scratch. I made it with a plastic plate and brass material (handles) with reference to the 1/35 model and photos of actual tank.
This is a temporary placement of the VCSU next to the original APU.
VCSU8_01.JPG
APU and VCSU

The somewhat troublesome part of making this VCSU is the fin area. Since it is difficult to place the fins at exactly the same pitch, I expressed the fins by arranging Tamiya's 2mm triangular bars (plastic materials). Dimension is exactly the same. (The number of fins was also adjusted to the actual VCSU.)
According to this method, the fin part can be easily manufactured without worrying about the interval dimension of the fin.

I was worried about making the bottom of the VCSU on the back of the main bustle rack. In the 1/35 scale model, it is expressed without missing. My policy for making RC tanks is not to make invisible places. This part is located on the back of the main rack, so it is usually hard to see, but it can be seen when the turret is rotated about 90 degrees. Is it necessary to pursue that detail with the RC tank? If this is considered a scale model (however, RC tanks need strength), I might still have to do it.
Well, hobbies are really a world of self-satisfaction.
Attachments
VCSU22_01.JPG
VCSU
VCSU7_01.JPG
Last edited by kintaroukinji on Mon Sep 02, 2019 1:13 pm, edited 2 times in total.

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Postby BarryC » Mon Sep 02, 2019 12:21 pm

The Heat Exchanger (VCSU) looks excellent. :clap:

For me the additional work for the bottom of the unit and the turret mounted conduit would be necessary. :D

Will you be adding the APU exhaust on the left rear corner?

Keep up the great work! :thumbup: :thumbup:
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Postby kintaroukinji » Wed Sep 04, 2019 12:08 pm

BarryC wrote:The Heat Exchanger (VCSU) looks excellent. :clap:

For me the additional work for the bottom of the unit and the turret mounted conduit would be necessary. :D

Will you be adding the APU exhaust on the left rear corner?

Keep up the great work! :thumbup: :thumbup:
Barry


Thank you for your comment. I decided to make the bottom of the unit and the turret mounted conduit. This is a place that is rarely seen normally, but it ’s still noticeable when the turret is rotated and seen from below. I already made the bottom of VCSU. Hmm I'm going to get stuck in the detailing quagmire. Of course, I intend to remove the APU exhaust duct when the VCSU is finally installed.
Attachments
VCSU DUKT12_01.JPG
Temporarily place the bottom on the VCSU
Last edited by kintaroukinji on Thu Sep 05, 2019 1:50 pm, edited 2 times in total.

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Postby BarryC » Wed Sep 04, 2019 12:18 pm

Great start! :clap:

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Postby kintaroukinji » Sat Sep 14, 2019 7:58 am

Since SAPU was replaced with VCSU, the APU air duct on the turret was removed. The back of the VCSU and the air duct to the turret were also scratch built. This is not a place that looks carefully in detail, so I thought it would be good if the whole looked like that.
DUKT T4_01.JPG

This photo shows the turret turned 90 degrees and viewed from below and above.
DUKT61_01.JPG

DUKT55_01.JPG

I also need to attach an additional bustle that was scratch built to the main bustle. Considering the strength, it is not possible to simply bond (the bonding area is small), and it seems necessary to consider a mounting method such as bolting like an actual tank. (If it is 1/35, there is no problem simply by bonding.)

Since the crosswind sensor is also a folding type, it should have a hinge at the base, but this model is also omitted. I feel that the anti-slip on the tank surface is too fine for 1/16 scale. Although Tamiya installed anti-slip on the 1/16 and 1/48 scale ABRAMS tank models for the first time, the texture of this 1/16 scale anti-slip is not very impressive. In the case of HengLong, there is no anti-slip (this woule be a copy of TAMIYA 1/35 scale, so it may be natural), so I will decide to install the anti -slip without hesitation. However, I am at a loss whether or not the anti-slip expression should be modified for this model.

The shape of the joint weld line between the upper hull and lower hull in front of the tank is also strange for Tamiya's 1/35 and 1/16 scale models (straight-cut shape). In this box art, the weld line is drawn correctly. In the case of RC tanks, it may be unavoidable because it is necessary to remove the upper hull (but it would be nice to think a little more ...), but 1/35 is not good. I will give up on the rework here. To conceal this, there is a way to attach the tow bar to the front, however the handling of this tow bar can be cumbersome when the upper hull is removed. Shackles are not included at all. If this model is assembled after factory shipment without any detailing or modification according to the instructions, the appearance of the finished product (apart from painting) will be almost at the TOY level.

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Postby BarryC » Sat Sep 14, 2019 2:45 pm

Ducting looks great! :thumbup: :thumbup:

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Postby kintaroukinji » Sun Sep 15, 2019 1:31 pm

Barry, thank you for your comment. I am very referring to your excellent work and articles in detailing this model. I also make a brass railway model, but the detailing skill of my 1/16 tank model doesn't reach your skill very much.

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Postby kintaroukinji » Sun Oct 13, 2019 2:52 pm

This M1A2 model kit has no shackles on the front and rear of the tank.
The shape of the shackle is an Ω type, which is different from the familiar U-shape on German tanks.
After all, there is no other option than building from scratch. (3D printer products are quite expensive.)
The Japanese "Amour Modeling" monthly magazine describes how to make this 1/16 Abrams shackle, so I started making it accordingly.
The method consists of laminating two 2mmt plastic plates, cutting them into shackles, bonding 4mm thick plastic pipes, and rounding them with a sponge file. Make a copy of it as a prototype.
DSC_2048_01.JPG
A shackle shape drawn on a plastic board
DSC_2048_01.JPG (37 KiB) Viewed 619 times


However, this method is very troublesome and time-consuming for me. After all, I abandoned this method halfway and decided to bend the 1.5mmφ brass rod into the shackle shape and cut and solder the brass outer diameter 2.3mm pipe. This is easier to manufacture and the shape of the rounded part is also beautiful. The right is made of brass (painted), and the left is a plastic shackle. The plastic has not been rounded yet.
SHUCLE_01.JPG
Plastic shackle in production and brass shackle


There is no need for copying because brass is less time-consuming to produce. I made a total of four for the front and rear. This is also stronger than the shackle made of plastic.
SHUCLE3_01_01.JPG

Next is the exhaust deflector installed in the exhaust port of the tank. Since the exhaust of the gas turbine engine is hot, it is installed to prevent burns. It ’s not necessary for diesel engines like other tanks. I made this with a plastic board. Inside the deflector there are things like mounting reinforcements or rectifying plates.
E.DUCT11_01_01.JPG

E.DUCT13_01_01.JPG

I tried to attach shackles and an exhaust deflector. The tank body has not been painted yet.
There still seems to be a part that needs to be modified and improved in detail, but I think that it will be endless when detailing this model.
E.DUCT5_01_01.JPG

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Postby kintaroukinji » Sat Oct 26, 2019 10:53 am

DSC_2127_01.JPG
I installed a scratch-built additional bustle rack behind the main rack. The method of attaching to the main rack was to place a small concave block against the vertical column of the main rack from the back as shown in the photo of the actual tank, and bolt the additional rack together with the block. (However, brass wire was used in the model instead of bolts.)
Jerry cans (these are not current US military types) and US military storage box are temporarily placed on the rack.

Since the crosswind sensor piole is retractable, I reproduced a dummy hinge at the base of the pole, and added resting support at the rear of the turret to use when folding the pole. (Both are omitted in this model, but are reprsented in 1/35 scale...)
Since these are simple shapes, I would like to say that TAMIYA should not omit them on an expensive 1/16 scale. The tank model on the right is a 1/35 Meng model.
Attachments
DSC_2046.JPG

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