1:537 AMT Enterprise-A broken pylon help

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nova1972x
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1:537 AMT Enterprise-A broken pylon help

Post by nova1972x » Sun May 29, 2016 3:13 am

Hi all.

So, I am in the middle of building an AMT 1:537 Enterprise-A (http://allscaletrek.com/viewtopic.php?f=61&t=3557 ), but I have had a mishap. The starboard pylon mounting peg that plugs into the secondary hull has broken off into the mounting hole, just as I was putting the finishing touches on this model. I have sunk in probably at least $50 into this thing, so I want to try to save it.

I asked around, and received some good advice, and was told I should create a new mounting peg, as well as reinforce it with a brass rod. Unfortunately, I am unable to remove what is left from the old peg, so it looks like I cannot make a new mounting peg. It appears to me the best I can do is use two rods, drill holes in both the secondary hull and the pylon, and mount two rods for support, then superglue or gorilla glue it all together. Also, I am not sure where to get an appropriate sized brass rods.

I know this particular model is famous for this problem. I was wondering if anyone can help with suggestions on how to fix this model. I hate to think I have to scrap this model!

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Re: 1:537 AMT Enterprise-A broken pylon help

Post by MEATLOAFr » Sun May 29, 2016 3:26 am

yeah, drilling and putting in brass rod is best bet - better if you do both sides and get them tied together inside to sabelize them
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Re: 1:537 AMT Enterprise-A broken pylon help

Post by nova1972x » Sun May 29, 2016 3:28 am

Here are some pics of what I am talking about...

Image

Image

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Re: 1:537 AMT Enterprise-A broken pylon help

Post by nova1972x » Sun May 29, 2016 3:30 am

MEATLOAFr wrote:yeah, drilling and putting in brass rod is best bet - better if you do both sides and get them tied together inside to sabelize them
Thank you for the advice!

Can you, or anyone else, recommend a diameter rod, and also a supplier? As in are there any specifically made for models?

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Re: 1:537 AMT Enterprise-A broken pylon help

Post by MEATLOAFr » Sun May 29, 2016 3:44 am

nothing made particularly for models, but get some thing that feels sturdy

get a rod and drill bit the same size,
drill your holes,
test fit - bend to get correct angles before gluing
use an epoxy for the glue

you're better off if you just snap the other-side and do both at the same time, save some future greif
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Re: 1:537 AMT Enterprise-A broken pylon help

Post by nova1972x » Sun May 29, 2016 5:26 am

So you think I should go with an epoxy over, say, Gorilla super glue? Any recommendation for an epoxy brand?

Funny, I was considering doing just that to the port side. I will try that, after I know how the other side turns out.

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Re: 1:537 AMT Enterprise-A broken pylon help

Post by Tesral » Sun May 29, 2016 5:35 am

You can get the peg out, you just have to proceed very carefully with a drill. Start with a drill smaller than the peg and make sure you are centered, then finish with the right size. Styrene will yield to steel.

I would as mentioned go with brass and a slow cure epoxy. Clamp the snot out of it.
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Re: 1:537 AMT Enterprise-A broken pylon help

Post by Moongrim » Sun May 29, 2016 10:01 pm

Gorilla glue would work better for keeping two large surface areas together.

I've tried Gorilla Glue- it's not so good at being a thin join for a weight bearing structure.

What I'd use in this kind of situation:
Image

I'd go with the recommendations of Meatloafr and Tesral.
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Re: 1:537 AMT Enterprise-A broken pylon help

Post by curt » Mon May 30, 2016 4:35 am

Quite honestly I would sand both parts to a fresh flat surface. Then drill and pin with brass rod. Also would use jB weld or an epoxy putty to glue the joint.

That is a very common problem with this kit. Also if you go to a hobby store you can find brass rod of various sizes that will work out. It's been so long since I have bought any brass but I think the brand is K and S metal's Brass. But don't quote me.

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Re: 1:537 AMT Enterprise-A broken pylon help

Post by nova1972x » Mon May 30, 2016 6:12 am

Thank you guys. I will give this a try.

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