Dear Sir, I love your tutorials Ned, you have taught me so much and I cannot thank you enough. You have inspired me with your idea's and helped me with problems so many times. These tutorials have been invaluable to me and many others of that I am sure. I would love to meet you just to shake you by the hand. I live in the UK so unfortunately it's not likely to happen, but every time I start a set, I think of you and how you helped me to get to this stage. Fireworks are magical, so you the wizard, and me....a lowly apprentice, and as long as you teach I will continue learning. I am able to make a good family fireworks display thanks mainly to you and your tutorial guides. So, thank you from me and my family. Regards, Peter
I use the same blender for mixing my powder. Scored it at a garage sale for $1.50! Find it works best if you mix for 1-2 minutes then rock it back and forth for one more minute. It helps break up those clumps. Thanks for the great videos.
It's nice that you do this ned. I am thankful that there is someone that enjoys fireworks and how to make them beyond the norm of of crazy flash and big boom I prefer the vibrant colors and knowledge myself. Thank you
@Frank Smith no worries my friend, I like to help, thats why I post stuff like this just in case someone that doesn't know might see it and learn something new
@Frank Smith I personally like using the 8oz jars they are the perfect size for batches of stuff unless you are making huge batches of stuff, but using those allows me to have a designated jar for each thing I grind up and then I don't have to clean em out between uses
Wouldn't this still be considered green black powder? I tried making it like this and it produces a lot of embers and the thrust was very weak, the CIA method is interesting but too much work to be honest. Ball milling the BP seems to produce the fastest BP. I use brass media much better than the led and cleaner.
Ned what is your thoughts about nozzle mix incorporating canning wax and grog with bentonite as skylighter suggests? I would like to make motors that will have shelf life. Suggestions?
Yes, I used that mix for quite a while, RC, but now prefer the Dr. Elsey's cat litter coated with graphite powder. It's easier to make and use, is gentle on tooling, holds up well to the exhaust gasses, and does have a good shelf life in the motors. But, there are lots of ways to skin the cat.
Hey ned! Always appreciate all the help you give to us newbies. I had a question... Would I be pushing it by using willow charcoal for my bp propellant? I'm doing nozzles motors and will probably stick to the 70-20-10 ratio you mentioned in the video. I want something hotter than the mixed hardwood airflaot I've been using. But obviously don't want a cato. I have 4oz core burner tool set.
Ned how long have u been fireworking. I find it's an amazing art after watching a few of ur vids I never knew so much went into it. I remember burning metal oxides in chemistry class to get different color flames. Never really thought about it much till I started watching u work. How long have you been doing this & who taught u the arts. Are u a chemist or were u a chemist previously for work?
I've been at this for about 30 years now, Dylan. It never gets boring for me. So many different effects and devices. I'm more of a "baker" than a "chemist". Give me a good "recipe" and I'll play with it, and develop the skills to have it turn out well.
@PyroHook thanks for that yea I put my name on a list to be notified when they've got it back in stock. I was also looking at the Turbo Pyro refill kit through skylighter, then thinking about getting tubes, & tooling from Caleb. To at least make 3/4" core burners, end burners, & gerbs he's got a beginner tooling kit that goes along with the fireworking kit. Hope ur doing well.. Have u done any new vids? I joined fireworking so u could always PM me there too
Dear Sir,can these BP Motors be used for model rockets?or are they only for fireworks?? And can one use store bought BP like muzzle loading powder for this??? Thank you in advance,, P.S. I really do enjoy watching your video's,I can tell you really love what you do!!!!
I have made BP endburning motors for Estes rockets, Neil. It's a fun project. I have an article on the site about doing that. Fine commercial BP can be used for them, too. It needs to be fine in order to press into a solid grain. And, thanks.
I don't understand what composition Sulphur-___________gm Potassium nitratr-___________gm Charcoal-_______________gm Please reply. Sir Which liquid is used at last
ODIA TEK STAR - It’s 75% Potassium Nitrate, 15% Charcoal, 10% Sulphur.. I haven’t watched the whole video so i don’t know how many G he’s used in the tube
Reportedly, there is still BP around from 200 years ago. As long as it's stored in a dry, airtight container, it should last as long as we'd ever desire it to. n
I know this is an old video but I have a question, I make quarter inch end burning bp rockets with my own kraft paper tubes and I don't use tooling. It seems that if I even drill a tiny bit too deep into the bp, the entire rocket will explode. Is my bp to powerful? Are my tubes too weak? The problems I have with them exploding kind of scares me away from larger rockets.
Well, it can be one or t'other, or a combination of the two. Just don't drill too far.. (-: Larger rockets do have to be made n particular ways to avoid CATO's, but it can be done pretty easily. I prefer to stay away from the "red line" with my BP rockets, achieving that slower, graceful takeoff with a nice Whooshing sound.
dont drill to far in the grain of rocket ,1 mm or less is ok,case very strong whit elmet glue,and slow the BP whit charcoal,8bp,char 1.,press to form a strong grain.
How is it supposed to burn hot enough to make a motor with only 3 sprays ? Don't you have to make a thick dough to granulate for a fast burning comp so you can carry heavy payloads into the sky? Thats at least how I was taught. 😕
ned gorski What about stainless steal from the 300 series, it is non magnetic and non sparking. Since lead is poisonus i would rather use that as my milling-media, is that okay?
@@nedgorski Actually brass can be used as well. Some professional black powder companies use brass since it won't spark and it's much cleaner than lead.
Ned how many pounds per square inch of Force do you recommend for Salli rocket fuel on the hydraulic press the tubes are going to be 1 pound 3/4 ID stringer rocket tubes?
If I'm using good quality, NEPTubes, AW, I like to use 7500 pounds per square inch of "Pressure". In a 3/4" ID tube using a solid rammer, that equates to 0.44 x 7500 = 3300 pounds of "Force". With a hollow rammer, I'd use 3/4 of that amount of Force. That depends on whether your tubes can take that amount of pressure, though, and I'm not familiar with the term you are using for your tubes.
@@nedgorski Thanks Ned got it down we'll try and see what happens thank you sir for the reply!. I have a solid Rammer and I'll go with 3,300 pounds per square inch for the 1inch 3/4 ID tubes
@@aztecworrior79 AW, a very important distinction when pressing anything is the one between Force and Pressure. You'll be going with 3300 pounds of force, which is what a bathroom scale would measure and show. That force can be applied to one square inch of area, in which case you'd be applying 3300 pounds per square inch, or psi Pressure. If you applied that 3300 pounds of force to an area of one square foot, 144 square inches, that'd be 3300/144 = 22.9 pounds per square inch of Pressure. That's a vital distinction when pressing. If you have a PtoF gauge unit which reads actual Force, then that gauge should read 3300 pounds when you are pressing your 3/4" ID tube's contents with a solid rammer, and shooting for 7500 psi pressure on the comp.
@@nedgorski yes sir very understood I do have the Ptof gauge and I'll follow those exact measurements on the press thanks for the advice Ned good day sir!.
@@nedgorski any idea where I can purchase a 10,000 PSI rated gauge, I ordered the 2000 PSI gauge which is not the right one I need for pressing 1 pound 3/4 ID tubes?
iam using a homemade rocket tooling the spindle is 3mm ang the tube id is 10mm....i try using a 60/30/10 mixture for a bigginer but always end up CATO please can someone give me another ratio...i am just new to making rocket...
There are many variables that come into play in a rocket motor, DJ; type of tube, type of clay, how the propellant is consolidated, clay bulkhead or no, where the ignition occurs. We discuss all this all day long in the site's community.
