Fish_Whisperer
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I've seen these made out of short lengths of PVC pipe with brass ends. Does anyone have a write-up on how to make one? Thanks in advance.
Underwater Rattle/banger
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Dave Zimmerly
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No, but you might want to try what we use: Get a brass/stainless Double-Eye Snap Bolt. On one end attach your whistle, attach other end to a D-ring. Underwater, detach snap and bang on your tank.
Dave (aka "Squirt")
Dave (aka "Squirt")
trigfunctions
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I took a small underwater flashlight I already had and took out the bulb and batteries and put in some plastic nuts, and it sounds a lot like the rattlers that are for sale.
I just made a couple for my wife and myself. Used 1/2" PVC with PVC endcaps. Filled each with 3 metal BB's and drilled several holes along the length (approx 4") of the PVC shaft. Added a small length of nylon line at one end for attaching to BCD.
Make a lot of noise on land and I filled the bathtub and did the u/w test ...PLENTY LOUD.
Personally I don't think you need any metal at all ...other than the BB's. Got everything at ACE Hardware for less than $8 (and that made 2 of them). Ask them to check their scrap bucket in back for the PVC. You'll save some money buying a remnant.
'Slogger
Make a lot of noise on land and I filled the bathtub and did the u/w test ...PLENTY LOUD.
Personally I don't think you need any metal at all ...other than the BB's. Got everything at ACE Hardware for less than $8 (and that made 2 of them). Ask them to check their scrap bucket in back for the PVC. You'll save some money buying a remnant.
'Slogger
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Fish_Whisperer
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That's what I was looking for, 'Slogger. Thanks. Why the holes, and what diameter?
=====================================Fish_Whisperer:
You need the holes (I think, anyway) to allow the BB's to travel freely inside the PVC. I drilled the holes just a little smaller than the BB's (probably 3/16 or 1/4"). The holes also make the clacker negative/neutral. I thought of just inserting the BB's and sealing the ends but then the clacker would be positive.
Those little suckers make a lot of racket.
'Slogger
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Fish_Whisperer
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Cool. Thank you very much. 
(Off to Lowe's, this afternoon....)
(Off to Lowe's, this afternoon....) =======================================Fish_Whisperer:Cool. Thank you very much.
Another thought ....The holes also make the clacker negative/neutral. I was going to just insert the BB's and seal the ends but then the clacker would be positively buoyant and I didn't want that to be the case.
'Slogger
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Fish_Whisperer
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Yes, this occurred to me too, especially since it's going to be on one of my chest D-rings. I don't want the thing hitting me in the face. LOL
FatRob
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You can just shout through your reg!
Sounds like you've got a gag in!
But you get the message across!
Of course I thought it might be fun to make an electro acoustic device to go "ping"
Naturally this would be a very expensive machine! (the most expensive machine in the hospital!) One downside might be that your buddies may ban you from using it because of deafness!
Sounds like you've got a gag in!
But you get the message across!
Of course I thought it might be fun to make an electro acoustic device to go "ping"
Naturally this would be a very expensive machine! (the most expensive machine in the hospital!) One downside might be that your buddies may ban you from using it because of deafness!
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