Cones
2004-12-07 by boomer535
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
Thread
Cones
Re: Cones
2004-12-07 by emf
--- 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
Re: [DTXpress] Re: Cones
2004-12-07 by Ken
I'm still not sure what "closed cell foam" is exactly. Is it
the stuff that is inside a Remo practice pad?
Ken
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----- 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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Re: Cones
2004-12-07 by emf
--- In DTXpress@yahoogroups.com, "Ken" <boomer17@a...> wrote: > I'm still not sure what "closed cell foam" is exactly. Is it the stuff that is inside a Remo practice pad? Ken, The Remo foam qualifies; you can use it in your mesh pad. In general, the walls of open-cell foam, or the surfaces of its "bubbles," are soft, a little like the texture of a natural sponge. Open-cell foam is useless for making electronic drums. Closed-cell foam is strong enough to take a beating from, say, drum sticks or the continuous pressure of someone reclining on it without fully or permanently losing shape, depending on its density. The interior cells are hard, like minature basketballs or something, bonded into a tight, tough resilient unit. That's what you want for your drum. Ed
Re: [DTXpress] Re: Cones
2004-12-07 by Ken
There ya go...........now I get it. Thanks Ed, for the great
analogy. I'm going to use a Remo pad for this project so I guess I can just use
a chunk of the foam that is already there. Gonna try sewing the layers of
plastic screening together as per the instructions I downloaded and inserting
the 1/4" tubing. I tried using a coffee can bottom with the piezo hot glued to
it and wired to a 1/4" jack and it worked OK but there isn't much volume
adjustment. Just a light tap is almost full volume no matter what I
do.
Ken
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----- Original Message -----From: emfSent: Tuesday, December 07, 2004 3:57 PMSubject: [DTXpress] Re: Cones
--- In DTXpress@yahoogroups.com, "Ken" <boomer17@a...> wrote:
> I'm still not sure what "closed cell foam" is exactly. Is it the
stuff that is inside a Remo practice pad?
Ken,
The Remo foam qualifies; you can use it in your mesh pad. In general,
the walls of open-cell foam, or the surfaces of its "bubbles," are
soft, a little like the texture of a natural sponge. Open-cell foam
is useless for making electronic drums. Closed-cell foam is strong
enough to take a beating from, say, drum sticks or the continuous
pressure of someone reclining on it without fully or permanently
losing shape, depending on its density. The interior cells are hard,
like minature basketballs or something, bonded into a tight, tough
resilient unit. That's what you want for your drum.
Ed
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