I'm still not sure what "closed cell foam" is exactly. Is it
the stuff that is inside a Remo practice pad?
Ken
----- Original Message -----From: emfSent: Tuesday, December 07, 2004 11:30 AMSubject: [DTXpress] Re: Cones
--- In DTXpress@yahoogroups.com, "boomer535" <boomer17@a...> wrote:
>
>; What kind of foam would I use to make a cone to use with a mesh
head?
> I plan to use the double layer of window screen method. Would the
> pink or blue insulation foam be suitable?
>
> Thanks, Ken--- In DTXpress@yahoogroups.com, "boomer535"
<boomer17@a...> wrote:
>
> What kind of foam would I use to make a cone to use with a mesh
head?
> I plan to use the double layer of window screen method. Would the
> pink or blue insulation foam be suitable?
Ken,
Personally, I've never studied the properties of various types of
closed cell foam on woven-head triggering, beyond basic density and
stability, but I ran across this site
http://www.efoamstore.com/default.asp
a while ago and was intrigued. The foam store should be able to
provide a nice foam sandwich for piezos under mesh heads. It might be
worthwhile to call the place directly to discuss the best choices for
the application (it might give them ideas about a new market). I
assume that you've seen Beatnik's site and followed his two designs.
For the cross-rail type, you can use air-conditoner insulation as he
suggests, but I find that the tall cylinder with the flat circular
ends--not the pointed cone or the trapezoid, which slopes obtusely
from the top plateau--holds up better. The mesh-head drum companies
tend to keep their suppliers a secret.
Ed
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