Mumbles Posted January 4, 2008 Share Posted January 4, 2008 It was more than likely a compaction/drying problem rather than lift. Link to comment Share on other sites More sharing options...
oskarchem Posted January 4, 2008 Share Posted January 4, 2008 Yep that's possible, but I'm happy anyway it was pretty Link to comment Share on other sites More sharing options...
Enkidu Posted January 5, 2008 Share Posted January 5, 2008 Mumbles! I hate to seem like a n00b... but if you've sent me a PM, I haven't received it. Link to comment Share on other sites More sharing options...
mormanman Posted January 5, 2008 Share Posted January 5, 2008 Well, actually I used some slow green mix I had left over, but I think the comet crumbeled apart because of the lift, the sparks started flying as soon as it left the mortar. How did you form the comet and how big was it? Link to comment Share on other sites More sharing options...
asilentbob Posted January 5, 2008 Share Posted January 5, 2008 Ok 2 orders out of the way... Got my aluminums. Got some CMC gum, a mullite crucible (even though I can make my own), and some ceramic fiber paper for high temp stuff... decided to op out of getting the potassium dichromate for now along with a bunch of other stuff. Starting to see the last of the saved up tip money going bye-bye from my last job. Being cheaper again. Now I need at the least a paper or plastic 8" hemi set. If the price was right I'd get some paper 6" hemis and a paper or plastic 12" hemi set. The single 8" and 12" if i got one will be used to make vacu-form molds out of fibreglass resin and cloth so I can have an unlimited source of hemis without having to buy the expensive big sizes. I'll also make 1", 1-3/4", 2.5", 3", 4", and 6" vacu-form molds too. Probabily have a mold making day a little down the line. Hmm could probably vacu-form perforated mine disks pretty easily too. So my question to you large hemi connoisseurs (and them alone hint hint) is where should I order from? I have looked at cannonfuse.com, firefox, and precocious. Precocious looks to be the best choice, however, $50 min order and I'm trying to stay cheap. I could always just get a bit more and even more gummed kraft or tubes, but don't need them. My throat is really sore and I have a terrible cough Like... the pain from this cough nearly brings tears to my eyes. I have to say nearly and stay manly about it. Its a constant irritation in the back of my throat ... hence causing me to cough more and make it worse ... about to take some syrup and try to go to sleep. Don't think it will work... Also Mumbles, annual APC video compilation thread? Yea or Neigh? Also, making a threads sorted by topic sticky again like at the old forum could be cool. Link to comment Share on other sites More sharing options...
oskarchem Posted January 5, 2008 Share Posted January 5, 2008 Ok, so I had the cough 1 week ago, but with a hottible migrane, and sore throat so when I coughfed (sorry about the spelling) the hedeche came back with eaven more power and so did the throat...  Monoraman: The comet was very small maybe 1/2" it was just to test my lift. The comet was pumped. BTW: Maybe we should think of opening a new random thread? Link to comment Share on other sites More sharing options...
qwezxc12 Posted January 5, 2008 Share Posted January 5, 2008 snip...So my question to you large hemi connoisseurs (and them alone hint hint) is where should I order from? I have looked at cannonfuse.com, firefox, and precocious. Precocious looks to be the best choice, however, $50 min order and I'm trying to stay cheap. I could always just get a bit more and even more gummed kraft or tubes, but don't need them.asb, Disclaimer: I'm not a connoisseur, nor do I play one on TV. I got a case each of 4in and 6in hemis as well a 10 or so sets of 8in from www.pyrocasings.com.  They're thinner and slightly smaller diameter than comparable sizes at Cannonfuse / Pyrocreations (which is good now that I'm pasting with gummed tape) and they fit together perfectly...far less casting flash than with the others. His prices were much less than the other places at case qtys. If you can deal with the TOTAL LACK OF COMMUNICATION (by this I mean zilch, zero, nada replies to multiple email queries) during the ordering / shipping process, the product is nice. Link to comment Share on other sites More sharing options...
Mumbles Posted January 6, 2008 Share Posted January 6, 2008 You're going to have some difficulty in obtaining plastic shells larger than 8". The only place that I am aware of that makes them is Plasticos Gamon in Spain. I believe shipping would be cost prohibitive in small quantities. There is no use in multiple random threads. The old software would show all the posts, thus the neccessity for the multiple ones. This software only shows 10. Yea on the video thread. I'll see about going through and making the subject guide. I did like that on the old forum. I think the hemi source depends on your intentions. If you're just going to make molds, you might as well go for the cheapest source. If you're going to be making shells from them, I'd suggest going with precocious. Their quality is higher than those from cannonfuse. The ones from cannonfuse can be used just fine though, just often oval. I find putting a stack of them onto a plastic shell or other sort of rigid form(basket ball, bowling ball, softball, etc) and rubber banding them on will help to stretch them back round. It seems like you only want a couple, but when in stock ACE pyro has the best prices and quality. www.acepyro.com I believe there is a new shipment of fireworks and stuff coming in this spring. Link to comment Share on other sites More sharing options...
crazyboy25 Posted January 6, 2008 Share Posted January 6, 2008 well if you can do paper there is this http://www.pyrodirect.com/ccp0-catshow/ShellCups.htmlfrom persut that guy who is allways promoting this website i took a look they go all the way up to 12" and they sell HDPE mortars that go all the way up to 16" Link to comment Share on other sites More sharing options...
mormanman Posted January 6, 2008 Share Posted January 6, 2008 Monoraman: The comet was very small maybe 1/2" it was just to test my lift. The comet was pumped. BTW: Maybe we should think of opening a new random thread? First off, its no big deal but you spelled my name wrong. Second, I'm sorry I didn't clearly say what I wanted to know about the comet. When I say how was it formed, they're usually pumped, did you press it or did you ram it?Why do we need a new random thread?  Why is the shipping price of the shells on pyrocasings so expensive? I tried to by some 3 and 4 inch shells the bag set and it was going to total like $40.50 shipping and everything.  BTW, I got my scale today and I must say I love that thing. Link to comment Share on other sites More sharing options...
asilentbob Posted January 6, 2008 Share Posted January 6, 2008 Ended up going with Precocious. Got some 4s, 6s, 8s and a 12" and some gummed kraft. Never have enough of that stuff. So now I've got 2 orders (a pottery supply in WA and Precocious) that I have to wait for calls to confirm shipping and total cost on. I have a sneaking suspicion that the pottery one will just charge me no calls or anything. Looks like we are moving the welding supplies to the garage tomorrow. I hope there is enough room. Also hope I feel good enough to practice a bit. EDIT:Yup got the welding stuff moved... or well... most of it. One of the AC arc welders is all set up now and it has REALLY long leads so I can work out in the driveway without moving anything but cables. The oxyacetylene stuff is nearly ready, just gotta fill the oxygen bottle. Apparently the wire-feed welder and a bunch of equipment was stolen... or borrowed without notification aka stolen. Hopefully we will figure all that out soon. Also need to go back with a couple hacksaws at the least and cut some really long square steel tubing into manageable lengths. Also need to clean up the whole garage more now. Link to comment Share on other sites More sharing options...
shagaKahn Posted January 7, 2008 Share Posted January 7, 2008 OK, I've searched in the BP rockets and member tutes section, so if this is answered somewhere don't geld me:Â Is there a minimum wall-thickness for rockets? Â Ask cause I've got this yummy stash of cores from fax paper rolls--but they are a smidge thinner than what I normally see rockets made out of: Link to comment Share on other sites More sharing options...
shagaKahn Posted January 7, 2008 Share Posted January 7, 2008 Woops, is it just my browser, or do y'all get the code instead of an image when you click on that attached thumnail in my last post? Thinking back, seems like that's what always happens whenever I click on a thumbnail here. How do y'all get larger-than-thumbnail images to show up in your message body? Link to comment Share on other sites More sharing options...
Mumbles Posted January 7, 2008 Share Posted January 7, 2008 It's a problem with firefox. It is covered in the FAQ I am working on. We're aware of the problem. To get around it, I find the best solution is to install a plugin called "IE view". It allows you to right click on the image, and open it in internet explorer, and it works just fine for me.  Anyway, normally the tubes are 1/8" and parallel wound. Those are spiral. In addition to being thinner than normal, they will be weaker than a standard rocket casing. That does not mean that they will not work though. Worst case scenario it blows up on launch, or spilts as you ram/press it. Link to comment Share on other sites More sharing options...
crazyboy25 Posted January 7, 2008 Share Posted January 7, 2008 to post an image you have to go to the thing that says IMG and enter the url to view the attached file in firefox just right click on it and press view image i have firefox and that works just fine for me. Link to comment Share on other sites More sharing options...
shagaKahn Posted January 7, 2008 Share Posted January 7, 2008 Anyway, normally the tubes are 1/8" and parallel wound. Those are spiral. In addition to being thinner than normal, they will be weaker than a standard rocket casing. That does not mean that they will not work though. Worst case scenario it blows up on launch, or spilts as you ram/press it.Decided to go ahead and make a few rockets with this tubestock--dying to try the purple flying fish endburner trick.  You're right Mumbz--first try I got a bit carried away with the plug ramming and the end started bulging out like a mushroom.  Did two more with a bit less enthusiasm on the ramming and they look pretty sound.  Thanx for the advice... Link to comment Share on other sites More sharing options...
shagaKahn Posted January 7, 2008 Share Posted January 7, 2008 Hey thanx Crazy for the "IMG" tip; one of those code buttons up in the header I've never even looked at.  And your right-clik/view image trick worked great in firefogz. Cookin. Link to comment Share on other sites More sharing options...
shagaKahn Posted January 7, 2008 Share Posted January 7, 2008 Such "saves me work" findings are too good to not use them. At least better than making tubes from the scratch. You got it.  And it's a mark of something--whether maturity or not--that the first thing I think of now when I find tubestock is rockets and not salutes. Link to comment Share on other sites More sharing options...
oskarchem Posted January 7, 2008 Share Posted January 7, 2008 Ok so mormanman sorry about badly spelling your name, I rammed my comet. And thanks Mumbles for the IE view software, because I hate IE and prefer FireFox.And the thumb nails don't work Oh, geez hove to get going to school, my first day after christmas vacation... Link to comment Share on other sites More sharing options...
shagaKahn Posted January 7, 2008 Share Posted January 7, 2008 If you're in firefox you can still get thumbnails to work without resorting to the IE plugin. (I'm with you--iE is bogus). Â Just right mouse click on the thumbnail, and you'll get the option to "view file." It serves up the fullsize version of the thumbnail (in firefox). Â (Thanx to crazyboy25 for pointing this out--and to mumbles for the plugin suggestion). Link to comment Share on other sites More sharing options...
oskarchem Posted January 7, 2008 Share Posted January 7, 2008 Ah, yeah it works, thanks shaga. Link to comment Share on other sites More sharing options...
crazyboy25 Posted January 8, 2008 Share Posted January 8, 2008 Well, I tried to synthisize copper benzoate and I had but at the last moment i realized my copper sulfate was too impure and I had SODIUM benzoate but i figured what the hell I'll go for it. I tried it my resulting product was a bright blue mash this was filtered and dried the water from the first 3 washings was forest green this was saved and began to crystallize. My product is low grade and probably full of sodium but its was just a test run my product STINKS it burns my nose and makes me sneeze. I hate it! When heated the flame turns greenish and the product goes from dry sky blue to a wet dark green maybe when I get some better chems I will redo this synth. here are some pics: http://i179.photobucket.com/albums/w318/crazyboy25/2008_0107pyro0001.jpg http://i179.photobucket.com/albums/w318/crazyboy25/2008_0107pyro0006.jpg http://i179.photobucket.com/albums/w318/crazyboy25/2008_0107pyro0004.jpg http://i179.photobucket.com/albums/w318/crazyboy25/2008_0107pyro0005-2.jpg Link to comment Share on other sites More sharing options...
pudidotdk Posted January 8, 2008 Share Posted January 8, 2008 well i tried to synthisize copper benzoate and i had but at the last moment i realized my copper sulfate was too impure and i had SODIUM benzoate but i figured what the hell i will go for it i tried it my resulting product was a bright blue mash this was filtered and dried the water from the first 3 washings was forest green this was saved and began to crystallize my product is low grade and probably full of sodium but its was just a test run my product STINKS it burns my nose and makes me sneeze i hate it when heated the flame turns and the product goes from dry sky blue to a wet dark green maybe when i get some better chems i will redo this synth.Gee, at least a comma or so Link to comment Share on other sites More sharing options...
hst45 Posted January 8, 2008 Share Posted January 8, 2008 (W)ell(,) (I) tried to synth(e)size copper benzoate(,) and (I) had(,) but at the last moment (I) realized my copper sulfate was too impure and (I) had SODIUM benzoate but (I) figured what the hell(,) (I) will go for it(.) (I)tried it(.) (M)y resulting product was a bright blue mash(.) (T)his was filtered and dried(.) (T)he water from the first 3 washings was forest green(.) (T)his was saved and began to crystallize(.) (M)y product is low grade and probably full of sodium but its was just a test run(.) (M)y product STINKS(!) (I)t burns my nose and makes me sneeze(.) (I) hate it(!) (W)hen heated the flame turns (,)() and the product goes from dry sky blue to a wet dark green(.) (M)aybe when (I) get some better chems(.) (I) will redo this synth.  Enough said. Link to comment Share on other sites More sharing options...
crazyboy25 Posted January 8, 2008 Share Posted January 8, 2008 Sorry I was in a rush I fixed most of it now. Link to comment Share on other sites More sharing options...
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