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Armor/AFV: Softskins
Softskins group discussions.
Hosted by Darren Baker
HEMTT M985 IDF
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 24, 2017 - 02:43 AM GMT+7
Todays update:

The two frame parts are now ready for the next step. The left one in the picture is the "right" one, meaning it has been cut the right places. Also the forward "H" has been put together. Before I put the frame together, I will add the transfer case and bolts where appropriate. I bought some nuts and bolts from Meng, and they look good to me.

Regards Thomas

thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:48 PM GMT+7
The frame parts from Trumpeter and Italeri:

These parts were the first parts, I modified, and I made some errors right away

The transfer case is placed in the same distance from the front of the frame on the M983 and the M985 respectively, indicated by the black arrows in the picture. This also means all mount points for the suspension units are placed in the same way on the forward part of the M983 and M985 frames. So I should have made the cut in the area indicated by the dark green snake pattern line. So the orange areas indicate my cutting errors, which should be ignored. I will do better the next time

The important point here, is that you need to add lenght to the short M983 Trumpeter frame two times, since the M985 frame is longer than the M983, but the difference in lenght is not evenly distributed.

There has to be room for the crane, thus there is a need for some lenght after the rear suspension unit, and there is a need for some extra lengt between the two suspension units, since the M985 has an extra box between the two suspention units, which is not present on the M983.

The suspention units are mounted on the frame by the attachment points indicated by the light green and red lines on the Trumpeter parts. These attachment points match the light blue and yellow lines on the Italeri parts.

thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:19 PM GMT+7

Quoted Text

Good work!



Thank you, Michael
165thspc
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Kentucky, United States
Joined: April 13, 2011
KitMaker: 6,141 posts
Armorama: 6,057 posts
Posted: Monday, July 17, 2017 - 08:47 AM GMT+7
Good work!
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:41 AM GMT+7
Hi Michael,

Thank you for your comments. Please see below, how I did the rear "H".

The parts for the front "H" are the parts, which can be seen above, which are not assembled.

Regards Thomas
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:17 AM GMT+7
TM page 5, which is the last relevant page of the frame:



TM part #118 match Trumpy part A44 and A46. You need to take the three light units from Italeri part 9, since these lights are not on the M983.





Also is should be noted TM part #113 is not depicted right in the drawing. the real deal looks like this:

thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:13 AM GMT+7
TM page 5:



The rear "H" I decided to scratch, since the Trumpy parts are no where near the real deal.

thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:09 AM GMT+7
TM page 4:



Parts #89/90 in the TM are Trumpy parts C74 and C75, which can be used nearly as they are. I only removed the right flange from these two parts, as the real parts are not symmetrical.

Parts #94/95/96/97/98 match with Trumpy parts A5 and A6, which I have modified accordingly.



The transfer case is placed between TM parts # 89/90 and # 94/95/96/97/98, though it is not to be seen in the TM drawing.

Please have a look at Michael Koenigs build of a HEMTT M1120 LHS to see how the transfer case should be placed and the needed incline of the transfer case. It can be seen approx. halfway down on the first page of his build blog.

http://www.armorama.com/modules.php?op=modload&name=SquawkBox&file=index&req=viewtopic&topic_id=250147
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:03 AM GMT+7
TM page 3:



Not a lot to add here. I think, it is quite fascinating, how you can actually build a model from the TM. Also it should be noted, that the precise size and location of the forward "H" can be deducted from the TM drawing. Generally, the Trumpy kit is quite accurate, so you can find the relevant bolts from the TM drawing on the Trumpy kit, and thus assess the size and location of the parts inside the frame.
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 08:01 AM GMT+7
The next page from the TM:



TM part #55 is the white bar, which I made from scratch, next to Trumpy part C73, which is the part which rests below the white bar.



The size of TM part #55 is not just guesswork. Part #55 is a bar and two endplates. The bar is attached to the frame with four bolts. These four bolts can be found on the Trumpy frame parts # D1 and D3. This means, you have the size of the endplate, and since there has to be room for four bolts, the size of the bar can be judged.

The parts to the left of the picture are the parts for the forward "H". I use part # A33 from the Trumpy kit and the part # 4 from the Italeri kit. This part should be given some extra depth, hence the white plasticcard at the bottom of the part. Also it has been turned 90 degrees, so I use it as an "U", with the opening pointing upwards. See parts #50/45/46/37/38 in the picture from the TM.
165thspc
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Kentucky, United States
Joined: April 13, 2011
KitMaker: 6,141 posts
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Posted: Monday, July 17, 2017 - 06:37 AM GMT+7
Front top H member with cutout to clear engine oil pan:

-

Rear top H member:

165thspc
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Kentucky, United States
Joined: April 13, 2011
KitMaker: 6,141 posts
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Posted: Monday, July 17, 2017 - 06:24 AM GMT+7
As to that H shaped frame brace; there should be two (one top, one bottom) on BOTH the front AND the rear main frame cross members of the HEMTT. What you are looking at in Fig. 231 is the forward frame member that anchors the torque rod for the first axle. That Figure does not cover the main front cross member, you are not far enough back yet.

Your right it seems neither Trumpy nor Italeri were looking at the manual when laying out the frame.
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Monday, July 17, 2017 - 06:19 AM GMT+7
Well, now I have begun building the kit in earnest. Please keep in mind, this will take a long time, and updates will be infrequent.

In the following posts, I will show, what I have done so far.

The starting point is the frame, which is so to speak, the backbone of the vehicle. I work from the Technical Manual, unlike Trumpeter and Italeri





(How I do not like this texteditor, Armorama, get it fixed, for crying out loud....)

The grey bar to the far right is Trumpy part C22. It can be used as is.

The part to the left of Trumpy C22 is Italeri part #3, dressed up with braces and boltheads. This part matches parts #15 and #17 in the picture from the TM. Please note, part #17 in the TM is not quite right in the TM drawing. In real life, there is a vertical plate "hanging down" vertically from #17, which can not be seen in the TM. This vertical plate is part of Italeri part 3. See the yellow arrow in the picture below.




thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Saturday, July 15, 2017 - 08:27 AM GMT+7
I wonder, if somebody has pictures of a HEMTT taken during maintenance, so the wheels are not in place?

There are so many details in the chassis frame, I would like to see with my own eyes, in order to judge, whether it is worth the effort to add them to my kit.

Also I would like tips on how you recreate bolt heads. Now I use Plastruct styrene hexagonal shape, but I am having a hard time cutting them in the same length.

Regards Thomas
HeavyArty
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Florida, United States
Joined: May 16, 2002
KitMaker: 15,460 posts
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Posted: Friday, July 07, 2017 - 08:42 AM GMT+7

Quoted Text

Has anyone here used the brake parts from Shapeways? I have never used 3D-printed parts before, so I am quite curious as to how they are?



I used them on my M983 and they came out great. They look really nice and hold fine with superglue.
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Thursday, July 06, 2017 - 06:54 PM GMT+7
I agree, it does indeed look the same as seen on other IDF vehicles.

There is also a rear light lamp on the left side of the rear end of the vehicle, which is peculiar to IDF HEMTTs.
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Thursday, July 06, 2017 - 06:38 PM GMT+7
Has anyone here used the brake parts from Shapeways? I have never used 3D-printed parts before, so I am quite curious as to how they are?
ReluctantRenegade
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Wien, Austria
Joined: March 09, 2016
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Posted: Tuesday, June 20, 2017 - 09:32 PM GMT+7
Looks like the standard antenna mount used on IDF vehicles.
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Tuesday, June 20, 2017 - 08:30 AM GMT+7
As far as I can see, the antenna socket is not the same as on US vehicles?

thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Tuesday, June 20, 2017 - 07:55 AM GMT+7
Also I need to decide, whether I want to use DEF Models or Yoyager Michelin XZL resin tires.

Has anyone here used the brakeparts from Shapeways?

Regards Thomas

thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Tuesday, June 20, 2017 - 07:43 AM GMT+7
My shopping list for this project:

The Trumpeter base kit:


The Italeri kit, which I will only use relevant parts from:


The Yoyager etched parts:


More Yoyager parts:


The Eduard Etched parts. I will only use the relevant parts for the loadbed, crane and other parts peculiar to the M985.




Brake parts from Shapeways (not bought yet)


More Yoyager parts for the four MLRS rockets pods:


Removed by original poster on 06/19/17 - 23:45:53 (GMT).
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Saturday, June 03, 2017 - 08:03 PM GMT+7
Hear, hear...

And the M1074/75 PLS as well 😀
165thspc
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Kentucky, United States
Joined: April 13, 2011
KitMaker: 6,141 posts
Armorama: 6,057 posts
Posted: Saturday, June 03, 2017 - 11:01 AM GMT+7
I wish Trumpeter would get a move on with their 1120!
thomcat
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Ringkjøbing, Denmark
Joined: March 21, 2003
KitMaker: 52 posts
Armorama: 48 posts
Posted: Friday, June 02, 2017 - 01:59 AM GMT+7
Well, I'm not that patient

The Trumpeter M1120 has been announced for a while, and I have already cut the first plastic.

If you have photos of IDF M985s, then please share, then I will put them in the project folder.

Regards Thomas