|March Madness Meme
||[Mar. 7th, 2006|05:24 pm]
So. Have you ever wanted to ask me a question? Blacksmithing related, knifemaking related, personal, or anything else? Please allow me to prove my "Male Answer Syndrome" affliction!|
I need to make a 3 foot tall cowbell. Can you help me? :)
Sure, we'll need pi*diameter*3' of copper for the body, plus a couple of extra square feet for the top. We'll need a couple of pounds of solder for the seam, and I can make a bitchin' clapper out of an old sledge hammer. :)
2006-03-08 01:43 am (UTC)
Re: giant cow bell
oooo Excellent! Is there a place out by you that would have copper sheets? Not sure what guage it would have to be not to be easily damaged by that sort of clapper... It's been a while since I have done any metal work. I need to get this done sometime before August. Would I be able to steal your time to do this one weekend before then?
We should probably talk about what you want this for -- if you're just looking for a big bell, I can make one pretty simply from an old propane gas tank. Honestly, copper, while used for small cow bells, isn't going to scale up without drastically increasing the thickness of the metal, and copper isn't cheap nowadays. If you want something for the look, it would be easier to modify an existing bell shape (such as an old 100 lb propane tank); if you want the sound that's pretty easly to arrange (just need to dampen the reverberation a bit).
Checking, there's nothing that says it *has* to be made of copper to be called a cow bell, so we can open up the construction metals to a bunch of cheaper stuff, including iron sheet, possibly from the scrapyard (think pre-patina'd).
(*screams in horror*) Did the man I know as blackanvil
just use the word "bitchin'?!"
Yep. You *do* know I was born in the San Francisco area of California. Valley-Smith Doug.
someone clearly lives in the south where they redefined Pi to be 3.
becasue if god was a proper holy trinity, it would be circumference divided by the body of the diameter ;)
if you look again, you'll see I specified pi times the diameter (2r) of the bell (assuming a roughly cylindrical bell) time 3', the specified height diameter.
Though I do note that for a rough materials estimate, for something of this size, pi=3 gets you in the ballpark, and you always add 10% or a bit more when computing a materials estimate. Personally, though, I tend to leave pi at the number of significant digits I'm measuring to, and ignore the rest of the digits.