I have a small club and we desire to build some thunder drums. Although we have bought some small ones in the past, we are looking to construct ones of 8" diameter or more. While there are plenty of places to purchase such drums on the web, there seems to be very little information on accurate do-it-yourself techniques. For practice, I have tried making the smaller 3" drums using a Pringles can with various membranes and springs, but I cannot obtain the resonance of the commercial units. From my experiments, I think the key may lie in the spring resonance. The limited information I've come across suggests springs have to be stretched a certain amount and also need to be a certain size. I can always calculate spring resonance, but I need to know what frequency and also whether such resonance is before or after stretching.
Any help would be appreciated. I've come across several web sources on construction, but I have found that none of these produce a good working unit.
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No. 1 Posted on Nov 15, 2012 8:15 AM
