HOW TO MAKE FIREWORK SHELL HEMISPHERES - ANY SIZE 

hi

@@PyroFizz_NE hi

Thanks 4 that, stay tuned for more ;)

Make & Destroy I sure will!

I will take that in consideration in the future casting, thanks, I never thought of letting it hydrate the water before mixing.

Here is a good video on the proper way to mix plaster of Paris: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FaWKjzIp7d0.html The trick to plaster is you do not add water to the plaster, you very slowly add plaster to the water, let the plaster sinking to the bottom and absorb as much water as it can take, DO NOT STIR UNTIL ALL THE PLASTER IS IN THE WATER (the plaster will not begin setting up until you start stirring it. Stir very slowly, do not introduce air bubbles. This is the proper way to mix plaster of Paris, if you mix slowly and do it this way you will have at least 2-5 minutes before it begins to harden.

Glad it's helpful!

That's what I was thinking.

couldn't you also just get a smooth ball and paper mache (like in this vid) around. When dry cut around the outer paper layer and you'd get a more symmetrical shaped hemi.

good idea

I buy cheap ball pit balls! Sometimes I just fill them with stars and a flash charge to break the mortor! Then 5 layers of paper masha over the ball with pva glue! I have recently used Xmas balls that come as a craft idea for kids to decorate! Then paper over the top! The ball pit balls are so light and thin no plastic would make it back to the ground!

Please?

You're not going to wait much 😂

Sounds good! P. S.. That was plastic ornament

I used a chinese paper hemi to make my male and female molds, if you coat the hemi, ball or glass ornament with vaseline it wont stick ;)

Mark Ahman Fill each half with your preferred stars and break charge. Then, Cover one of the two filled half with thin household paper(I split the paper, it’s thinner). Now that one half is covered lift it and carefully place it on the other half. Press the two halves together and seal them together with masking tape(preferrably gummed tape)

@@samuelericsson2143 yea, I know that that is how it works for thicker shells, but I wonder if it is the same for such thin hemispheres, that he has. I tried doing that with really thin plastic hemispheres once, and I for the life of me couldn't get them together well enough to even tape them

Mark Ahman I think you’re overpacking them in that case, or you are making yours so thin that they’re flexible. I make thinner ball shell casings than Make & Destroy but i get them together just fine. Don’t be afraid to put some major pressure on your ball shells while taping them together. I mold my ball shells from ping pong ball cut in half and a tennis ball cut in half. Good luck!

You would finish with far too much paper at each pole. As shown, the method results in more paper around the equator but not so much more.

Seriously?

Yeah, I should know that but where I buy it (office supply store) they would probably give me no info on it cause they sell it just as a Kraft/Packing paper :)

@@MakeAndDestroyFireworks please try sock sensitive powder bomb

No. That's dumb. You try!

Any plaster will work

@@MakeAndDestroyFireworks cool! man i love how fast your responses are

Wood glue

PVA

I thought of casting one pestle inside this mold. Haha, same thoughts I had the same idea for wood pestle for pressing.. Funny but awesome

Some 3'' shells coming soon!

Not sure about old mate but you will be better off with a spoilette! It is more reliablr

Absolutely, that's also how you sharpen ur knife if you don't have other options 😂

I have asked a question before that do you want 10 subscribe more