Xtreme Pyro Posted March 7, 2007 Posted March 7, 2007 What are the size measurments for a spindle and rammers to make a 4.0z blackpowder rocket?
cplmac Posted March 7, 2007 Posted March 7, 2007 The 4oz. rocket is 1/2" ID. Not sure about the spindle measurements outside of the motor ID. The link below will answer your questions and it is the home of the best rocket tooling in the business. Wolter's tooling.
Mumbles Posted March 7, 2007 Posted March 7, 2007 The info can be found around here. Of the top of my head is the following dimensions. Tube 10xIDNozzle 1/3 ID tapering with a 1.5 degree taper with a rounded off topspindle length 7xIDNozzle inset 1/2 ID4 spindles probably. One with a hole 1/3 ID, one for 1/3 up the spindle, one for 2/3 up the spindle and a flat rammer. I don't feel like calculating the exact ID for the rammer holes.
Aikimike999 Posted March 7, 2007 Posted March 7, 2007 Hello all, I realise that this is probably not the best thread for my question, but its as close as I'll get without starting another one! Anyway, my school has a metalworking lathe that I can use for my own personal stuff if I want to, and it just so happens that I could use a go at making some rocket tooling. I have 1/2inch from Greg Boyd which is excellent but would like some 1/4 inch and 3/4 inch. Anyway, what I would like to know is; in rocket tooling rammers, are the holes tapered to the spindle or are they just streight cylinders? I know that this is kind of a dumb question but appreciate all advice given to me on the subject! Thanks alot! Regards, Mike
Mumbles Posted March 7, 2007 Posted March 7, 2007 I wouldn't think it matters, whatever is easiest I suppose. I do believe most tooling is just straight cylinder. The bottom face does the pressing, no read advantage gained by tapering the interior of the rammers.
Aikimike999 Posted March 7, 2007 Posted March 7, 2007 Hi, Cheers Mumbles, you just made my job a whole lot easier! Much appreciated! Regards, Mike
Xtreme Pyro Posted March 8, 2007 Author Posted March 8, 2007 I actually have acess to a lathe and plan to make my own rocket tooling spindle rammer, ect..
Mumbles Posted March 8, 2007 Posted March 8, 2007 I found a diagram for 1lb (3/4") You can size accordingly for 4oz up through 4lb I believe. The 6lb has a slightly modified ratio I think, [edit] Forgot to include the link. I'm a dummy. http://www.truetex.com/bp_rocket.pdf
asilentbob Posted March 8, 2007 Posted March 8, 2007 When i get my order in from firefox im supposed to get this little book with specifications on a bunch of BP core burner rocket toolings, so if i can remember ill look it up and either write the relevant parts or just straight up scan it.
Xtreme Pyro Posted March 9, 2007 Author Posted March 9, 2007 Im also confused of what kind of rocket, to make which one is more reliable a core burner or an end burner?
ewest Posted March 9, 2007 Posted March 9, 2007 I'll give you the standard Pyro answer, "it depends." Reliability is a function of how well you are at making them. For example, if Steve LaDuke was making any kind of rocket it's going to be reliable, but, if say, I were making one, I'd have to say not so much. The best thing to do is make a couple of each and try them out, then just make what you like best. That's going to hold true for everything pyro. Now if you're talking about lift capabilities, that's a different question.
Xtreme Pyro Posted March 11, 2007 Author Posted March 11, 2007 I'll give you the standard Pyro answer, "it depends." Reliability is a function of how well you are at making them. For example, if Steve LaDuke was making any kind of rocket it's going to be reliable, but, if say, I were making one, I'd have to say not so much. The best thing to do is make a couple of each and try them out, then just make what you like best. That's going to hold true for everything pyro. Now if you're talking about lift capabilities, that's a different question. Yes, i am basically trying to say which rocket has more lift? I will probrably end up trying them both anyways.
Mumbles Posted March 11, 2007 Posted March 11, 2007 A cored design has a higher lift capability from a pure mass standpoint. It will be able to take a heavier payload with it. An end burner however will take a payload higher, though not as heavy of one.
Xtreme Pyro Posted March 12, 2007 Author Posted March 12, 2007 A cored design has a higher lift capability from a pure mass standpoint. It will be able to take a heavier payload with it. An end burner however will take a payload higher, though not as heavy of one. Ok, thanks mumbles
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