Moderator curlers

[rangur1]

trying to find suitable plastic or metal curlers that you wrap felt around to put inside a shroud/moderator. mine in this case is a huub shroud. i need a curler with a diameter of 9/16" to do it. anyone know where i can find these. have not found option in U.S. so far. did not see on amazon or elsewhere. i am fine with constructing my own . any ideas on what tubing to get , let me know please.

 

[DanD]

Try Walmart or the Family Dollar type stores. I bought a variety pack of curlers for cheap locally, and it was from one of those places. Sorry can't remember exactly which one. 

 

[d3vnull]

You can try these:

https://www.sallybeauty.com/hair/hair-styling-tools/curlers-and-rollers/blue-9-16-inch-brush-rollers/SBS-430130.html

http://www.cachebeauty.com/wholsale/brush_rollers.htm

http://www.cachebeauty.com/Diane/rods-rollers/coldwave_9-16_orchid.htm

No idea if that helps at all, but all I could find in a search.

 

[STO]

The other option, if you can't find suitable hair curlers, would be to get some wire mesh and bend it around to act like a hair curler. The idea really is just a rigid structure to hold the felt out of the bore path. 

 

[steve-l]

Has the OP ever made a moderator before? I ask the question because your idea of a moderator doesn't work.

 

[rangur1]

Has the OP ever made a moderator before? I ask the question because your idea of a moderator doesn't work.

this is the design that HUUB themselves use. you can see it online by accessing BSA shroud-which was formerly HUUB shroud. they use 3 metal curlers separated with 2 washers and each curler is wrapped in felt.

 

[Hubertus]

Curlers are in the Weihrauch Moderator and its working great. Very silent and cheap Moderator for its size

You can the this moderator in action in the video from steve with the weihrauch hw44.

 

[steve-l]

rangor1,

You obviously don't believe me, so I invite you to make the moderator like you want, Then measure the attenuation, sound meters are cheap from China. Then take out all the poop you put inside the moderator tank and test the sound volume again. Then report back here your observations. I'm pretty sure we can then have a much more meaningful conversation. I've been there, done this many times. You will find a change in sound pitch, but no change in sound volume.

 

[BigTinBoat]

rangor1,

You obviously don't believe me, so I invite you to make the moderator like you want, Then measure the attenuation, sound meters are cheap from China. Then take out all the poop you put inside the moderator tank and test the sound volume again. Then report back here your observations. I'm pretty sure we can then have a much more meaningful conversation. I've been there, done this many times. You will find a change in sound pitch, but no change in sound volume.

He is making a MODERATOR, not a sound REDUCER so how can you say it doesn't work? If the perceived sounds is "lower" based on the pitch change (as opposed to a volume change) wouldn't you say the device is "working"? Personally I would.

BTW- I have added curlers (dollar store to answer the original question) and washers to an empty shroud and the perceived difference in sound ( i have no sound meters and wouldn't trust a cheap one from china) is tremendous.

Also to the OP - if you can't find curlers the correct size I have taken a piece of PVC pipe or copper pipe and drilled holes to get it to work. All you really need is a spacer for the washers. Drilling the holes allows you to keep more of the internal volume "active".

 

[rangur1]

rangor1,

You obviously don't believe me, so I invite you to make the moderator like you want, Then measure the attenuation, sound meters are cheap from China. Then take out all the poop you put inside the moderator tank and test the sound volume again. Then report back here your observations. I'm pretty sure we can then have a much more meaningful conversation. I've been there, done this many times. You will find a change in sound pitch, but no change in sound volume.

mr steve-i maybe i was unclear, i use the term moderator for all type of sound control of an airguns report. the design i described , and is used by bsa is actually part of a shroud assembly that incorporates a curler felt system with an air stripper to reduce the guns report. now when the shroud is off the gun is big time loud and sharp. with this assembly it is muffled to a very respectable thud. it is not that i don't believe you. all i said was check out the HUUB shroud installed on a bsa rifle and you will see how they addressed the issue. BTW- i have also taken off the shoud entirely and just screwed on donnyfl sumo, shogun and emporer mods directly to barrel. shroud was about the same as the shogun in effectiveness. lastly, when i remove the felt curler assembly the shroud alone goes to a louder echo sound that is readily obvious. 

 

[rangur1]

Bigtinboat- i ended up doing just that, used small pvc tube drilled out holes and added washers with bigger center hole, it appears the factory washers they sent were small and pellets were clipped and caused them to catch the original curlers until it was a lead mashup - problem appears solved for now, thanks!