[balloon-makers] Seams and stitches ( Bob)
cpackdo at citynet.net
Sat Jan 26 16:39:36 CST 2002
This is a simple question which I've wondered about. How do you lock the
seam at the start without a reverse. I have always locked the beginning of a
seam with a reverse at the start. On small things I have reversed the
material but this would be difficult on a gore. I have always used my
commercial machine which has reverse and the only machine I have sewn
without a reverse is my old treadle machine ( a mechanical marvel) but only
on small projects. Is there a technique or method to do this ( or is it even
needed all the time)?
----- Original Message -----
From: Bob LeDoux <bobledoux at proaxis.com>
To: <balloon-makers at mail.deering.org>
Sent: Friday, January 25, 2002 7:53 PM
Subject: Re: [balloon-makers] Seams and stitches
> When I first started homebuilding, in 1988, I considered other seam
> for building a balloon. My old Balloon Works repair manual discussed a
> commercial multi-step zig-zag machine that was used for inlay work. They
> still use a locking chain-stitch machine for their construction. There
> no bobbins, which increases productivity. Machines, like the Singer 300,
> permit setting multiple needles at desired spacings, without the necessity
> to incorporate a bobbin assmebly underneath.
> I met builders who used a single needle home machine, a Pfaff 130 to build
> their AX-7. They folded the seams and passed each seam through the
> machine, twice.
> I think a double thread overlap seam would be fine for amateur balloons.
> But it leaves the cut edge in the open where it tends to unravel--even
> cut with a heated knife. I chose to buy a double needle, double bobbin
> Singer 112W140, and have never regreted it. My wife loves the consistency
> and quality of the stitch. We often use it as a single needle machine.
> Other seam systems are possible, but I'd want to test alternatives as a
> small section in a part of a balloon that was otherwise constructed witha
> proven seam design.
> >Hi All,
> >Thanks to encouragement from some of the kind folks on this list I have
> >decided not to sell my "stuff" and am back to building.
> >I am looking at alternatives to the french felled seam and would like
> >input. Does anyone one know of a web site where standards for stitches
> >seams might be found.
> >What would the difference in strength between a felled seam and just a
> >flat seam be?
> >Any thoughts appreciated.
> >Totally Amazing Search Results - Just C4 Yourself!
> >http://www.C4.com - Total Search Technology
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