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Old Jan 03, 2008, 12:27 AM
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jirvin_4505's Avatar
brisbane australia
Joined Nov 2002
2,123 Posts
Video
Dangerous!...Kevlar cutting with olfa wheel in dremel

Just messin around.. don't do this at home. They cut industrial fabric using a spinning disk. I attempted to replicate this with an olfa wheel in the dremel.

4 layers of 6oz kevlar cut like hot knife through butter!!

If this movie is too dangerous and irrisponsible of me I am happy to remove it.

cheers Jeff
ps Don't cut your fingers off!!
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Old Jan 03, 2008, 01:08 AM
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United States, GA, Stone Mountain
Joined May 2006
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Why is that dangerous? Obviously I don't know much about Kevlar.
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Old Jan 03, 2008, 03:04 AM
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Christchurch, New Zealand
Joined Dec 2004
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Please tell me you had safety glasses on for that. Those Olfa wheels arn't made to do 35000 rpm
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Old Jan 03, 2008, 03:11 AM
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jirvin_4505's Avatar
brisbane australia
Joined Nov 2002
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Thanks tomahawkflier.. no they were only designed for 3 rpm.

I'm not an engineer.. wonder what the designed rpm is for a 30mm tool steel disk is? The real danger is the kevlar catching and the unproctected blade spinning at 30,000 rpm wipping off a few fingers before you can say oh...

as I said don't do this at home... I usually use the attachment at low rpm to hold the blade while I sharpen it... promise i had the wife watching.. next best thing to parental supervision.

cheers jeff
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Old Jan 11, 2008, 07:01 AM
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Hervey Bay, Sunny Qld, Australia
Joined Jun 2001
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Jeff,

Is that cured Spectra or dry matting (I know dumb question, but I thought I'd ask anyway )?

Also I only just got a Dremal for xmas (the new small Lithium one that fits nicely into your hand), so is an olfa the same as what is used to cut through metal (a thin grinding wheel)?
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Old Jan 11, 2008, 08:24 AM
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jirvin_4505's Avatar
brisbane australia
Joined Nov 2002
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Quote:
Originally Posted by Masterpiece
Jeff,

Is that cured Spectra or dry matting (I know dumb question, but I thought I'd ask anyway )?

Also I only just got a Dremal for xmas (the new small Lithium one that fits nicely into your hand), so is an olfa the same as what is used to cut through metal (a thin grinding wheel)?
Hi Masterpiece (wet up your way too?)
> Is that cured Spectra or dry matting
It is 6oz (200gsm) kevlar cloth - looks and feels like heavy hessian (weat sack material).
>dumb question
Old saying...the only dumb question is the one you didn't ask - can't guarentee my answers though
>lithium dremel
wish my santa read your wishlist.... I want one!


Olfa wheel is out of a rotary cutter... commonly used to cut glass cloth in a very simple fashion.
http://www.olfablades.com/rotary/index.html

cheers jeff
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Old Jan 11, 2008, 10:11 PM
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Hervey Bay, Sunny Qld, Australia
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Ah.... Like a pizza cutter wheel but for material . Hmmmm no I won't try this at home after all
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