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Techniques
Started by Snacko at 06-14-2009 8:03 PM. Topic has 11 replies.
  
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 06-14-2009, 8:03 PM
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Snacko
Joined on 05-04-2003
USA
Posts 62
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How Would You Fix This Seam?
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Hey guys - I need your opinion on something. I've attached a pic here that shows that I am up against. I thought the part would fit better, and that my attempts at sanding the seam flush would have come out more successfully. But a light primer coat has revealed that a pronounced seam still exists. The seam was originally welded using a fairly thin liquid cement, and i didn't over do it in terms of application. I am afraid that the use of putty will be more trouble than it's worth from a sanding and getting it back to to a proper circular shape. I am also worried about any nearby panel lines if the sanding process is more pronounced. TIA, Eric
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06-14-2009, 8:22 PM
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fermis
 
Joined on 01-22-2009
hamburg michigan
Posts 820
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Re: How Would You Fix This Seam?
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I've had the same problem. I run a bead of medium superglue along the seam( a couple times, to build it up a bit) sand, fill in pocks with more glue, sand, glue, sand........... If you are worried about the semi-flat sides, (doesn't really bother me) , try glueing some thin sheet-stock, and sanding that to shape. Either way, it's a bit of work, and you'll likely be replacing a bit of lost detail. Good luck!!! FERMIS
"The road of expectation, leads to a metropolis of disappointment" (the story of my life)   (http://myspace.com/themosesshowband)
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06-15-2009, 8:40 AM
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HawkeyeHobbies
Joined on 08-29-2006
Neenah, WI
Posts 2,686
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Re: How Would You Fix This Seam?
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Stretch some sprue and apply it with the thin cement. Let it harded then sand and polish...the seam will disappear. Perfect Seams
Gerald "Hawkeye" Voigt
http://www.hawkeyeshobbies.com
http://hawkeyes-squawkbox.com
http://imagesbyhawkeye.com
Its not the workbench that makes the model, it is the modeler at the workbench.
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06-15-2009, 9:18 PM
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MikeV
Joined on 04-19-2003
Hayward, CA
Posts 9,871
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Re: How Would You Fix This Seam?
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Are those the wing tanks on the Revell 1/48 F-15E Strike Eagle? I had that same problem and sometimes the problem is worse than just filling a seam! If the tank halves are not perfectly matched when glued then one side of the seam can actually be sticking out a little further than the other and seam filling will not work as you need to sand down the side that is sticking out too far in order to correct it. This can also lead to the shape changing from round to somewhat flattened. This is one of the worse problems I have encountered when doing wing tanks and I wish there was an easier solution. Any words of wisdom on that aspect of seam correction Gerald?
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06-15-2009, 9:44 PM
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HawkeyeHobbies
Joined on 08-29-2006
Neenah, WI
Posts 2,686
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Re: How Would You Fix This Seam?
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The easist way is to find aftermarket ones.![Whistling [:-^]](/emoticons/icon_smile_whistling.gif) Baring that I have had to slice down the center of a tank half to insert a styrene spacer to get the two halves to be the same size. A real hassle! I've also had some that were so bad that I chucked them into the lathe between end stocks and turned and sanded them to get the round shape back...careful not to go too deep or you have a shredded one. The best option is to get the outward or upward seam depending on the way it was cast as the seam as the one you want aligned best. Then do your filling and reshaping to the one most out of view when mounted to the aircraft..the inside or bottom seam.
Gerald "Hawkeye" Voigt
http://www.hawkeyeshobbies.com
http://hawkeyes-squawkbox.com
http://imagesbyhawkeye.com
Its not the workbench that makes the model, it is the modeler at the workbench.
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06-30-2009, 10:54 AM
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Fly-n-hi
Joined on 12-20-2006
Phoenix, AZ
Posts 151
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Re: How Would You Fix This Seam?
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My guess is that it is the Academy F-16C drop tank. If you have any Apoxie Sculpt you could easily fill that seam. The nice thing about the Apoxie is that you don't need very much and you can smooth it out with your finger to the point where you only have to sand very lightly. Just put masking tape along each side of the seam to avoid getting any filler in any panel lines.
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06-30-2009, 4:00 PM
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RESlusher
Joined on 03-12-2003
Fort Worth, TX
Posts 78
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Re: How Would You Fix This Seam?
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Here's my ![My 2 cents [2c]](/emoticons/icon_smile_2cents.gif) take it for what it's worth. I've never used epoxy, stretched sprue, liquid cement, etc. I've only used Elmer's wood filler or simple Liquid Paper correction fluid. My reasons were simple, those are all that I had. I recommend the LiquidPaper option myself. Dries super fast, is sandable and primeable, doesn't react with any paints that I've found so far and above all else it's dirt cheap! That's just my opinion, I may be wrong! Talk amongst yourselves!
Richard S.
Webmaster for Fort Worth Scale Modelers
http://www.fortworthscalemodelers.org
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07-03-2009, 9:08 AM
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Milairjunkie
Joined on 10-08-2007
Scotland
Posts 546
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Re: How Would You Fix This Seam?
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I cant really answer your question as I have so many regards filling myself. I have tried 3M Acryl Green, Squadron white & correction fluid (not all at the same time mind) & "wiped flat" with the appropriate thinners, but this usually leaves something which requires sanding. The sanding would be fine if they didn't all dry so bloody hard. has anyone out there come across any filler which dries to something which is easily sanded (I have tried Mr Surfacer from a bottle, but it only really fills pretty fine areas). Sorry if I have hi-jacked.
Done: B-1B, XB-70, IV-A, Vulcan, Hawk
In the pot: 1/72 B-58, 1/72 Victor
Wants: 1/72 TU-160, TU22-M3 & another Vulcan
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07-03-2009, 4:25 PM
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model maniac 96
Joined on 12-25-2008
Las Vegas, Nevada
Posts 987
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Re: How Would You Fix This Seam?
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I would say put a piece of stretched sprue in there and just sand it flush, that's what I would do at least, but take for for what it is worth, a grain of salt. Hope this helps, Jim.
"Veni, Vidi, Vici" Julius Caesar: I came, I saw, I conquered.  |
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07-03-2009, 9:46 PM
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figure freak
Joined on 06-24-2009
Joplin, Mo
Posts 270
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Re: How Would You Fix This Seam?
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Bondo spot and glazing putty found at walmart you can polish it super duper smooth and it doesnt dry too hard
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07-06-2009, 7:07 AM
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Milairjunkie
Joined on 10-08-2007
Scotland
Posts 546
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Re: How Would You Fix This Seam?
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I dont seem to be able to get Bondo in the UK, but I tried 3M Acryl Green (Blue again isnt available in UK) thinking it may be similar, but it dries pretty hard. Don't suppose you have any other ideas- I have seen various mentions of home made concoctions, but know little about them? Thanks.
Done: B-1B, XB-70, IV-A, Vulcan, Hawk
In the pot: 1/72 B-58, 1/72 Victor
Wants: 1/72 TU-160, TU22-M3 & another Vulcan
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