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MAKING AN ANTENNAE BY STRETCHING SPRUE


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#1 Dr. Cranky

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Posted 17 May 2012 - 07:16 AM

It takes a little bit of practice, but you can stretch sprue over a candle flame until you get the right thinness . . .

WATCH THE VIDEO HERE:

#2 mopar68

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Posted 18 May 2012 - 01:47 AM

Not sure if it's the link or I'm doin' something wrong, it just takes me to my 'video manager'. Which is empty lol

#3 High octane

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Posted 18 May 2012 - 03:02 AM

I use guitar string for my antennas and it works great!

#4 mr moto

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Posted 18 May 2012 - 03:34 AM

I use guitar string for my antennas and it works great!

Totally agree! You can even specify the thickness down to the thousandth. I use a .01" string which scales to 1/4".

#5 jdcar32

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Posted 18 May 2012 - 04:05 AM

File the head of a common straight pin from the sewing kit to reduce the head diameter closer to scale. Drill the kit anntena mounting base to accept the sharp end of the pin. If possible drill the mount thru and drill the fender also for a good secure mounting of the assembled pin and mounting base.

#6 Danno

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Posted 18 May 2012 - 04:31 AM

I don't use stretched sprue for antennae; I find guitar strings much more realistic in size, material, appearance, and flexibility.

But, this process can be used to create just the right diameter of plastic round parts or bits for various applications. Also useful for creating bodywork beading or trim.

Besides antennae bases or miscellaneous shafts or attachment posts, the stretched sprue can be used to plug holes. Insert the stretched sprue until its diameter is snug in the hole, wipe it with some liquid cement, then clip off the excess on either side of the plugged part. Sand smooth and presto! Hole plugged with little muss and fuss.



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#7 Dr. Cranky

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Posted 19 May 2012 - 08:19 AM

Danno, you are right about all those good ideas. Thanks for sharing.

#8 peekay

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Posted 19 May 2012 - 09:42 AM

I use a medical syringe needle - 0.45mm seems about right and I buy them at a chemist. I file down the sharp end and insert a piece of .009 gauge guitar string.
Once installed I slide a 1-2mm length of hollow vinyl detail wire of the appropriate thickness over the syringe as a base and add a tiny glob of epoxy to the tip of the guitar string. The result is, of course, a two stage antennae.

#9 plowboy

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Posted 19 May 2012 - 06:20 PM

I use stretched black sprue to make valve stems for wheels. I also use guitar string for antennaes.

#10 Dr. Cranky

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Posted 21 May 2012 - 03:00 AM

Nice ideas, Roger. Thanks for adding them to the conversation. Best, DC