Article View: rec.models.scale
Article #482Re: ballast - what to use?
From: No parking EXCEPT FOR BOB
Date: Sun, 10 Jan 1993 01:07
Date: Sun, 10 Jan 1993 01:07
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2106 bytes
After several years, the oil in many types of commercially available modeling clay begins to separate. The remaining solid gets harder, crumbly, and lighter. What's worse, the leaking oil can really damage a finish. Sort of like recent publicity around certain surgical implants, it's like a time bomb that may or may not go off and you've no idea when or if. I find electronic solder (types with no built-in flux) and the lead foil from wine bottles to be the best I've used. Fine solder can be coiled or wadded and there's little need to melt it, just a few dabs of superglue or even good white glue should hold it. Lead foil can be formed to shape, glued, and layered. The hard-to-use top parts of the bottle seals go well here, too. The idea of forming foil into the cavity, supporting the shape outside of the model, then melting in solder sounds pretty good, but if you really need that density of weight, there's probably someplace else you could put it that you're overlooking, like engine nacelles maybe. Sure, leverage counts for a lot, but if we're dealing with a tricycle A/C, (and most weight problems are) then anything forward of the main gear will help. If the nosewheel tire is molded in halves, fill it with a coil of solder. Maybe there's room in the wingroots or fillets. Try taking weight OFF of the back, too by thinning non-structural stuff. Bob "don't usually have to weight ARMOR models" O'Brien
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<DPALACE.93Jan8071716@sunland.gsfc.nasa.gov> <1993Jan8.162306.26127@wuecl.wustl.edu> <1993Jan8.194953.19631@rambo.atlanta.dg.com>Show Full Headers
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Newsgroups: rec.models.scale Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!paladin.american.edu!howland.reston.ans.net!sol.ctr.columbia.edu!The-Star.honeywell.com!umn.edu!csus.edu!netcom.com!obrien From: obrien@netcom.com (No parking EXCEPT FOR BOB) Subject: Re: ballast - what to use? Message-ID: <1993Jan10.010737.19629@netcom.com> Summary: modeling clay problems Organization: Netcom Online Communications Services (408-241-9760 login: guest) References: <DPALACE.93Jan8071716@sunland.gsfc.nasa.gov> <1993Jan8.162306.26127@wuecl.wustl.edu> <1993Jan8.194953.19631@rambo.atlanta.dg.com> Distribution: na Date: Sun, 10 Jan 1993 01:07:37 GMT Lines: 26