Chris Posted January 11, 2008 Share Posted January 11, 2008 This is a small project that I finished in time for new year eve. The cake is made of 10mm dia. PVC tubing attached on to plywood. The fusing is made of fast shogun fuse running between the tube rows. The cake is held together with two 8mm dia. thread bars with nuts in the ends. I isolated each row of tubes with two sheets of Al foil tape, but as you can see from the video, it is not enough as the burning fuse ignites the near by rows prematurely. Instead of the desired Z effect, the tubes went off a litle where ever. Anyway, post fire pic and video. The video istelf is not the best either. It was filmed too close so the whole effect does not fit the view. Pic Video 1 Link to comment Share on other sites More sharing options...
Bonny Posted January 11, 2008 Share Posted January 11, 2008 You should be quite pleased with the result. I think it looked great. What was the comp fro stars/comets? Look forward to seeing the next attempt. Link to comment Share on other sites More sharing options...
qwezxc12 Posted January 11, 2008 Share Posted January 11, 2008 Nice set-up! I like the drilled boards and zip ties...that's a very slick way to make the fan. I'm sure you'll sort the fusing out. When you do, it'll look really great How were the tubes plugged? Did you use PVC end-caps or wood dowels / Durham's putty, etc? Link to comment Share on other sites More sharing options...
bmarley5780 Posted January 11, 2008 Share Posted January 11, 2008 Very nice indeed! Link to comment Share on other sites More sharing options...
Chris Posted January 11, 2008 Author Share Posted January 11, 2008 Bonny, sorry I forgot to mention the comp. It is C6 with 20% 60-350 mesh flake MgAl. I plugged the tubes with wood plugs which I fastened with hot melt glue. The plugs are about 1 cm long, and they should hold up good. I think the overall concept is nice, even if I'm saying it myself. Basically I can add as many rows to the setup as I'm ready to prepare and that way expand the duration. Link to comment Share on other sites More sharing options...
nath0r Posted January 12, 2008 Share Posted January 12, 2008 As the others have said, that looked really good even if it didn't have the desired 'Z' shape. Keep up the good work Link to comment Share on other sites More sharing options...
Chris Posted January 14, 2008 Author Share Posted January 14, 2008 Thanks for all of your comments! What I'm going to do next time is that I'm going to place a sheet of thick cardboard between each row. I'll bet that the fuse won't burn through it. I don't have any more right sized stars so it is going to be while before my next try though. Link to comment Share on other sites More sharing options...
JamesH Posted January 14, 2008 Share Posted January 14, 2008 Nice fan cake chris! I liked that star comp. Did you prime the stars and how much BP did you use to lift them? The lift seemed to be nice and high, just about right i would say.Good work. Link to comment Share on other sites More sharing options...
Chris Posted January 14, 2008 Author Share Posted January 14, 2008 Nice fan cake chris! I liked that star comp. Did you prime the stars and how much BP did you use to lift them? The lift seemed to be nice and high, just about right i would say.Good work. The MgAl C6 catches fire easily without prime, so no priming needed. I didn't weight the lift since I used a scoop to measure the BP for each tube. I'd say about 2 grams to be close to reality. Link to comment Share on other sites More sharing options...
FrankRizzo Posted January 14, 2008 Share Posted January 14, 2008 I plugged the tubes with wood plugs which I fastened with hot melt glue. The plugs are about 1 cm long, and they should hold up good. Hot melt glue? If you plan to reload that rack, you might want to re-think your adhesive choice. Link to comment Share on other sites More sharing options...
Chris Posted January 15, 2008 Author Share Posted January 15, 2008 After firing one same tube about eight times with the same load, its very clear that there is no deformation on the plug. Link to comment Share on other sites More sharing options...
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