junior diver
Guest
want to make a simple back up light for an ordinary flashlight any what a 14 year old couold make
pleazzzzzzzzzzzz help
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rab
Contributor
OP
junior diver
Guest
yeh but i want to MAKE it as a) a backup light here in england costs about £50 ($85) b) almost anything needed (i expect) i've already got c) i like making stuff and d) even if they were like £8 ($12) here in england i'm broke and my parents don't like me diving tho they don't object
DarkFrog
Guest
It seems to me like the vast commercial availability of such products has kept anyone from trying to make their own, at least since the early days of diving. In the books I've read, most early divers didn't make their own lights, but rather one or two early divers did and made a business out of it.
Id suggest drawing up a few designs of your own and scrutinizing them thoroughly before trying to make anything. Remember, you'll need a good watertight seal and you should try to keep the air space to a minimum. I might also suggest testing the light (during the day!) by dropping it on a weighted line. In Sheck Exley's book Caverns Measureless to Man, he describes being knocked nearly unconscious by the concussion of his primary light imploding under pressure.
Id suggest drawing up a few designs of your own and scrutinizing them thoroughly before trying to make anything. Remember, you'll need a good watertight seal and you should try to keep the air space to a minimum. I might also suggest testing the light (during the day!) by dropping it on a weighted line. In Sheck Exley's book Caverns Measureless to Man, he describes being knocked nearly unconscious by the concussion of his primary light imploding under pressure.
Bob3
Contributor
There is always the 3-layers of ziplock bags.
Or, if you're diving in freshwater, you don't even need to waterproof. Lights work just fine when they're flooded, just be sure to take everything apart & dry completely afterwards.
Years ago Radio Shack had these 99¢ flashlights that took 5 - 6 D cells. Heck of a deal, a disposable light. (they came complete with batteries)
Or, if you're diving in freshwater, you don't even need to waterproof. Lights work just fine when they're flooded, just be sure to take everything apart & dry completely afterwards.
Years ago Radio Shack had these 99¢ flashlights that took 5 - 6 D cells. Heck of a deal, a disposable light. (they came complete with batteries)
OP
junior diver
Guest
ziplock bags??????? what are these???? and i'd probably only be using in day, or if at night only if my light failed
OP
junior diver
Guest
ziplock bags??????? what are these???? and i'd probably only be using in day, or if at night only if my light failed, and my backup, which nether of which would be mine
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