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Agreed but whistle is not for begineer level. Whistle is also pretty dangerous in terms of sensitivity.

Besides the safety problem, flash powder has another problem when used as a burst charge because, as the name implies, it creates a very bright flash, that will ruin the night vision of anyone watching. This definitely takes away from the effect of the stars in the shell. Well made BP should be more than sufficient for a good burst charge in shells 3" or larger. In the smaller shells you may want to add a booster to the BP to get a good burst. There are a number of compositions that can be added to boost BP. Whistle comp., for example works rather well.

Check out Dudadiesel.com. They sell very good quality sulfur in one, three, five, ten and fifty pound quantities and they have very reasonable prices. I believe one pound is like $3.29. I also but my potassium nitrate from them as well. they sell it in one, five, ten and fifty pound quantities, and again, at $4.94 for one lb., they have very reasonable prices. One note however, their KNO3 comes in "prilled" form, which is small round beads. Some people like to get their KNO3 already finely ground, I don't have a problem with prills as I just run it through a blender I bought at a resale store for cheap. when I first started this hobby, I had a VERY limited budget, so I found a lot of ways to do things cheaply. For example, I built my own ball mill from scratch for under $20!

As a science student, I can say that it's not that easy to make sulfur if you don't have enough skills. You need to have the ingredients, instructions and the required equipment. But to be honest, I don't know where to get them because I've never tried to buy them, but I think that you can find something like it online or just buy sulfur. But if you want to try to make it yourself, and you will have everything needed, I can recommend one resource where you will read how to make sulfur, and I can say that it's good instruction. Or maybe after reading, you will decide that it's too complicated to try, but it's up to you.

It looks your dog like pyro displays...Haha....

Yes, I know the spiking was crap. But at least the break was a nice even ring. And if the case was any smaller it wouldn't if fit the launch tube as well... I put a lot of effort into making my shells fit the mortar just right cause my dog likes to fetch so a underpowered lift is especially dangerous The burst was plain bp coated puffed rice. Plus fine corned bp around the stars. My thinking was that plain bp benefits from a very strong casing as it bursts harder and also exposes the stars to more fire to allow for better ignition.

👍👍👍👍

Who know about me or not it is not matter for me, In here forum I think some jealous people present they are think they are master who know everything. I am nothing but I believe which is my work which I do it is everything for me and my work and my experiment always my work level part and it is I am not share to anyone.

experiment explore his meditation energy. Mad boy u are pyro king 👑lots of members in forum know urs meditation energy and mind knowledge, that why I say u master 😀

My think any experiment explore his meditation energy but some people not know about mind knowledge because he is not think about your mind they are believe copyright🙈🙉🙊

Thank you for posting pictures. It seem your casing is too thick and strong I can see it is spiral tube ,isnt it? You have to improve spiking methods, spiking is usually used for rolled kraft paper tube casings which can easily moves inside and outside if we press with hands unlike spiral tube or kraft paper paper mortor tube which is too strong. What busrt did you used for such strong casing?

One more thing I forgot to mention in my last post. If you run into problems trying to get fast enough BP without a ball mill, and you just can't wait, try out Rcandy to get your rocket fix. All you need is an old pan and an electric hot plate. An old electric deep fryer like a Fry Baby works even better (once again look at a Good Will or other resale store). If you don't know what Rcandy is; It's 65% KNO3 and 35% sugar. You can dry melt it (which means you have to have finely ground KNO3 and sugar) and pack it into your rocket tube, or you can dissolve it in water and boil it down until the water is gone. I have gotten better results using the water method.

A little tip: hit up the resale shops like GoodWill and look for old kitchen blenders. Make sure to get two of them; one for oxidizers and one for fuels (this is important for safety!) Blenders grind up your chemicals very well and fast too! You can reduce charcoal to airfloat in no time. Even after you get your ball mill, the blenders will still come in handy. Another safety tip; don't put mixtures in a blender!! Only single chemicals! I use mine rather often. By the way, IMHO a ballmill is NOT an option, it is a necessity for this hobby!

Mesh stops having a lot of meaning at a certain level. A wire screen becomes way more wire than opening eventually. The particle shape of what you have is probably atomized, but can be determined fairly easily by looking at it. Flake is almost certainly going to be coated with a fatty acid at this particle size, and will smell like crayons. It's needed to keep it from welding back together while flattening and reducing the particle size. It will also be pretty fluffy. Atomized will be darker grey, probably not smell like crayons, and be denser or more compact most of the time. They also flow differently, but that is harder to describe. Let me know if this doesn't help you get an answer, and I'll give it a shot though.

Thank you Z. Here are some pictures of the building process

pyrogear in uk seems to be back up 😀

Can u write supplier name its maybe Jagannath chemical or other

U got better result or not? U r Master, try tips and tricks and get best result 😀

Thats pretty nice shell. Congratulations..!!

Ruby red, emerald green, and some carbonate magenta I can't remember the name of. The colors were super vivid and bright enough to cast shadows. It weighed almost 2 pounds VID_20240421_210521273.mp4

I admin a fair sized BBQ site, and have worked a couple others. I have offered help. These guys have been pretty good over the years tho. Well, OK damn good. And this is a great resource. Spam and stuff has not been bad. The biggest thing here I think is “kids” not comprehending exactly how precise and dangerous this hobby is. A mis-mixed BBQ rub might taste crappy, but you’ll live.

Oh thats really great..! Keep it up. Best luck to you. Please notify us once it is complited.

Yes, I am working on a sort of wiki like website dedicated to pyrotechnics where everyone is able to contribute to. And I try to make it host on a peer to peer basis, that way the website will last forever. Here is a little sneak peek If anyone wants to contribute, feel free to send me a PM. The project will go on github. Project's programming stack is as follow (stack can grow in future) NodeJS Bun SvelteKit Bootstrap Prisma PostgreSQL

Sorry what? Are you working on some other forum or pyro resources or websites? Or here?

I am working on something, something build to last