Making a 30ppi foam plug

[jdubs]

Guys

I have my Yorkville Unitys where I want them in terms of sound (DEQX controlled, actively triamped), but really want to try foam plugs in them. I can get 13" cubes of 30ppi foam for $75 each from Swiss Tropicals.

The Unity horn is 15" in diameter and is ~11" deep. How can I "massage" the cube shape into an appropriately shaped cone?

Thanks for any and all tips! I'd be happy to buy a pair of the 13" cubes for someone if they can turn my pair into cones for me!

-Jim

 

[Loren42]

You might be able to cut the foam with a hot wire.

 

[badman]

Foam cutters are sold at hobby stores, and 30ppi can be fairly effectively shaped with just scissors- like trimming a hedge.

 

[Paul W]

Electric carving knife and a beard trimmer

 

[jdubs]

Thanks guys. I think the hot wire idea will yield the cleanest cuts. Anyone want to tackle the job for me? If not, might order 3, knowing that I will screw one up.

Thanks
Jim

 

[catapult]

Electric carving knife and a beard trimmer

What Paul said. You can get an electric kitchen knife for $10 and it won't melt the edges like a hot knife. A beard trimmer will smooth up the rough edges.

 

[ted4412wilt]

Hot Knife

Search results for: 'hot knife'