WMcD Posted April 13, 2009 Share Posted April 13, 2009 I sort of doubt that plywood with very many plys is more strong than that with fewer. Mabye a bit, but I doubt it comes into play in this application. I agree with John A. IIRC, the stiffness of a beam (or in this application, a plate) goes up as the fourth power of thickness. That stiffness will be the resistance to bending. There are typically little Z shaped diagrams showing how the stress (compression or tension) in the beam is greatest at the outer layer, and if you can move that outer layer more distant from the center, there is more resistance. This is why an I beam has flanges and the "deeper" the beam, the more resistance to bending. Thinking about it, I suspect that the same principles apply to damping. If you have a thick panel, whatever damping is available is increased. This is kinda like having a long lever. If you apply a torque at the fulcrum, there is less force at the end with a longer level arm. Similarly, you need apply less force at the end of the lever to achieve torque at the fulcrum. Going to the damping thing. The damping is like applying a force at the end of a long lever, or thicker panel. So I'm guessing that damping goes up as the fourth power of thickness too. Wm McD Link to comment Share on other sites More sharing options...
Guest " " Posted April 13, 2009 Share Posted April 13, 2009 Plywood stiffness proportional to layers has more to do with the re-oreintation of the grain across the layers than just the added thickness. Link to comment Share on other sites More sharing options...
sean5340 Posted April 26, 2009 Share Posted April 26, 2009 Hi all, I've been tracking SSCT progress. Please find attached pictures: Impressive. Link to comment Share on other sites More sharing options...
gartenman Posted May 6, 2009 Share Posted May 6, 2009 are there pixs of the final product? Link to comment Share on other sites More sharing options...
Islander Posted May 6, 2009 Share Posted May 6, 2009 What model woofers are those? Link to comment Share on other sites More sharing options...
Arky Posted June 9, 2009 Share Posted June 9, 2009 [6] Link to comment Share on other sites More sharing options...
jorjen Posted June 9, 2009 Share Posted June 9, 2009 ssctrojan, Forgive me if I am just not seeing the pictures clearly, but you are'nt mounting the woofers directly to the motorboard without spacer rings are you? Link to comment Share on other sites More sharing options...
ssctrojan1980 Posted June 9, 2009 Author Share Posted June 9, 2009 The woofers i used are the stock woofers that come in the Klipsch Jubilee. Link to comment Share on other sites More sharing options...
ssctrojan1980 Posted June 9, 2009 Author Share Posted June 9, 2009 I did use a spacer.... I actually used a rubber spacer. Link to comment Share on other sites More sharing options...
jorjen Posted June 9, 2009 Share Posted June 9, 2009 OK cool, just did'nt want your surrounds to hit. This is how I did mine. Four t-nuts and four threaded inserts. Oh, and 13 ply Baltic Birch.....[] Link to comment Share on other sites More sharing options...
jorjen Posted June 9, 2009 Share Posted June 9, 2009 Makes the woofers a breeze to install.... Link to comment Share on other sites More sharing options...
jorjen Posted June 9, 2009 Share Posted June 9, 2009 One more.... Link to comment Share on other sites More sharing options...
jwc Posted June 9, 2009 Share Posted June 9, 2009 wow. Stunning. Please more pics... BTW... My opinion of a great woofer to use in a Jub clone is the Kappalite 3012 LF. This woofer wasn't out at the time of me trying different woofs in my jube clones. The T/S parameters look different than the Klipsch K31's, but in calculation for the bass bin...they are the best "fit" and are of good quality... Xmax of 9.1 !!!! http://www.parts-express.com/pe/showdetl.cfm?Partnumber=290-590&vReviewShow=1&vReviewRand=8807506#reviews jc Link to comment Share on other sites More sharing options...
ssctrojan1980 Posted June 9, 2009 Author Share Posted June 9, 2009 i like that... that looks really good and really professional Link to comment Share on other sites More sharing options...
ssctrojan1980 Posted June 9, 2009 Author Share Posted June 9, 2009 here is a complete pic Link to comment Share on other sites More sharing options...
ssctrojan1980 Posted June 9, 2009 Author Share Posted June 9, 2009 My klones are done in santos rosewood. (oiled). I went ahead and made grill covers. It was just a personal preference but they sound phenomenol. But honestly...., how does it look? Good or bad what do you all think? Link to comment Share on other sites More sharing options...
sunburnwilly Posted June 10, 2009 Share Posted June 10, 2009 Other than the veneer being off center they look outstanding ! Link to comment Share on other sites More sharing options...
jwc Posted June 10, 2009 Share Posted June 10, 2009 About the best I've seen. great work. Do you have one or two? jc Link to comment Share on other sites More sharing options...
Coytee Posted June 10, 2009 Share Posted June 10, 2009 Gorgeous [Y] Link to comment Share on other sites More sharing options...
dkalsi Posted June 10, 2009 Share Posted June 10, 2009 Excellent Job!!! - there were many people here that were doubting you - but I'm happy to see you came through. Oh, if you can please post some more pictures, that would be awesome! Cheers, D Link to comment Share on other sites More sharing options...
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