## Re: [hameltech] Re: Making Mini 3CD Cones

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• u mean the 90 s.. ... From: ROBERT To: hameltech@yahoogroups.com Sent: Sunday, July 18, 2010 1:36 PM Subject: [hameltech] Re: Making Mini 3CD Cones Hi, I am
Message 1 of 3 , Jul 18, 2010
u mean the 90's..

----- Original Message -----
From: ROBERT
Sent: Sunday, July 18, 2010 1:36 PM
Subject: [hameltech] Re: Making Mini 3CD Cones

Hi, I am making the 45cd, the cones need to be 13 5/8 high, and the dig. is 14.812. what would I have cut. thank you.I was a member in the 80's back in again.

--- In hameltech@yahoogroups.com, "starraider25" <jaro@...> wrote:
>
> I want to make a mini 3CD, so I calculated the size of the cones.
> They're 4" diam., 4" tall, which makes the side of the cone 4.47".
> Circumference is 12.56". To make it, you need to draw a 4.47" radius
> circle (8.94" diam.) and cut out 161 degree slice out of it. That
> rolls into a 4" diam. 4" tall cone.
>
> The two inner cones also are 4" diam., but only 1.49" tall. That's
> because 1.49 times 1.68 is the height of the outer cone (4"). The
> sides of this cone are 2.49". To make it, draw a 2.49" radius circle,
> and cut out 288.6 degrees out of it. That'll make the 4" diam, 1.49"
> tall inner cone.
>
> Jaro
>

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