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Unread 06/17/2003, 08:31 PM   #25
rayjay
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Join Date: Oct 1999
Location: London, Ontario, Canada
Posts: 3,969
I buy bass wood from the local hardwoods specialty store as it's cheaper than from the craft stores.
My stones are made 2"X 2"X 7" with a 7/8" diameter boar which I thread a plastic fitting into that allows me to connect to a 3/8" diameter air line.
I've actually ground the boaring bar down so the hole is a little under the 7/8" and I use a piece of black pipe with the same threads to make a tap buy hacksawing long narrow "V" cuts into the threads around the circumference. After all the cuts are made I use pliers to squeeze the open cut end pieces slightly inward. This gives me a taper for starting the thread, and relief slots for sawdust to expel while making the threads in the bass wood.
You can see the "head" these stones give my skimmers on this page:
SKIMMERS WITH DIY AIR STONES
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RAY'S REEF


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