sand-glass port

[Artmaster]

hello!
I want to do sand-glass, or egg-glass port for my subwoofer.
it's should be round.
how can I make it? which material and method?
thank you

[saabie22]

Yury,

You could try using PVC pipe reducers like the one shown in this attachment.

I don't know if you will have a step inside the fitting where the straight tube is connected. You might be able to smooth this with a file.

I've seen these fittings with about a 2:1 ratio between the large and small diameters.

Your picture shows a narrow angle (30 degrees?). These fittings usually have a 90 degree cone angle.

Good luck!


Mike

[markp]

That shape is called an 'hour-glass' in English. That might help you find it in a search.

[Artmaster]

thank you markp to put right my English. I couldn't write correctly yet. it's important for me. ok. I'll try
dear saabie22, I won't do my port by 90 degree cone angle. I wanna do it round. theoretically I wish to make it exponential.
thas I ask all of you about it

[bigmike216]

Maybe you could turn it up on a lathe out of wood? Maybe do it in two pieces and join it in the middle?

[Artmaster]

it's will be nice , but I'm not a lathe operator.
now I think about gypsum
but it's difficult either, and not exactly what I want.

[zuki]

http://www.partsexpress.com/webpage....63528&desc=ASC

[Artmaster]

Originally posted by zuki
http://www.partsexpress.com/webpage....63528&desc=ASC

I couldn't see it.
my firewall close access to "sex" sites
something interesting for me? except girls, boys and other stimulator?

[bogoes]

Here, try Madisond instead, they and PartsExpress sell flared ports. Scan about half way down the page to find the ports.

Madisound Accessories

Good luck.