Date:	Fri, 15 Oct 1993 02:40:14 -1000
From:	jeffy@syrinx.umd.edu (Jeffrey C. Burka)
Message-Id: <29m5ne$adr@umd5.umd.edu>
Organization: University of Maryland at College Park
Subject: Carrington (was Re: Beginner Ripstop sewing question)

In article <1993Oct14.084709.12764@aber.ac.uk> puc@aber.ac.uk (Paul Crowley) writes:

>Just to let you know to be very careful when hot-cutting Carrington
>ripstop. A local paragliding Co. are prevented by legislation from
>hot-cutting canopies as the heat generates micro-fractures. Carrington
>dont wish to comment- not suprising really considereing the hold they
>have over the kite industry now. My advice is to bind that edge.

While I can understand this being an issue when you're talking about a
paraglider and therefore someone's life, is it really important with a
kite?  I've made two kites out of Carrington so far and have hot cut all my
pieces, including the extensive appliques (the red tracer and blue 3/4
tracer that are in the archives).  I've not had *any* problems with the
fabric and both kites have flown in winds well above 20mph.

I suppose part of it may have to do with the temperature of the hot cutter.
I do remember noticing that Carrington seemed to cut at a lower temperature
than other fabric I've used.  Perhaps some of the professional hot cutting
devices are just overkill?

Jeff


-- 
|Jeffrey C. Burka     | "When I look in the mirror, I see a little clearer/ |
|SAFH Lite [tm]       |  I am what I am and you are you too./  Do you like  |
|jeffy@syrinx.umd.edu |  what you see?  Do you like yourself?"  --N. Cherry |



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Date:	Fri, 15 Oct 1993 04:14:53 -1000
From:	sritter@umi.com (Sam Ritter x3111)
Message-Id: <29mb8t$651@news.umi.com>
Organization: University Microfilms Inc.
Subject: Re: Carrington (was Re: Beginner Ripstop sewing question)

In article <29m5ne$adr@umd5.umd.edu> jeffy@syrinx.umd.edu (Jeffrey C. Burka) writes:
>In article <1993Oct14.084709.12764@aber.ac.uk> puc@aber.ac.uk (Paul Crowley) writes:
>
>>Just to let you know to be very careful when hot-cutting Carrington
>>ripstop. A local paragliding Co. are prevented by legislation from
>>hot-cutting canopies as the heat generates micro-fractures. Carrington
>>dont wish to comment- not suprising really considereing the hold they
>>have over the kite industry now. My advice is to bind that edge.
>
>While I can understand this being an issue when you're talking about a
>paraglider and therefore someone's life, is it really important with a
>kite?  I've made two kites out of Carrington so far and have hot cut all my
>pieces, including the extensive appliques (the red tracer and blue 3/4
>tracer that are in the archives).  I've not had *any* problems with the
>fabric and both kites have flown in winds well above 20mph.
>
>I suppose part of it may have to do with the temperature of the hot cutter.
>I do remember noticing that Carrington seemed to cut at a lower temperature
>than other fabric I've used.  Perhaps some of the professional hot cutting
>devices are just overkill?
>
>Jeff
>
What would I be looking for??  "Micro fractures" is a new term for me at
least applied to fabric.  I can understand what a fracture is when we are
talking about something stiff like framing materials.

Sam (Looking for Enlightenment) Ritter

PS. Would these fractures also apply to something like Icarex since it's 
    made of polyester, too??

Thanks



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