0101001101110101011100110110100001101001 Build Thread

matthewdlaudato said:

The original string is interpreted as 5 8-bit bytes in binary representation. All bits need to be encoded whether 0 or 1, hence the leading 0's.

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...well, that bites...or bytes...or bights...or....... what do I know of arcanery such as that. I'm a musician, I start getting lost after addition and subtraction

The timing of this is rather funny to me... My wife and FiL were explaining binary to my 8 year old daughter tonight on the way to see The Hobbit.

Yay! More progress.

I mark the coupler tube using the fin slots so I can determine sheer pin locations.








Now a switch band is cut from the fin can tube.



Sorry, didn't get pics of it glued on.



Testing the centering ring location again:



One of them was slightly loose (and slightly off), so I knocked it off and adjusted it. The tape is to get the measurement in between the two rings correct.






Ya know... is it bad when you can put a nose cone from what used to be a "big rocket" into the motor tube of your current build?




More pics next post.

OK, so next I started to sand the fins for bonding. I initially tried tape and sandpaper.






But that took like 5 minutes for a single fin. So I modified:











What this rig allowed me to do was to run my dremel sanding drum along the metal edge. That would keep me from sanding the rest of the fin.

It must have worked well. 2 minutes later:






I also went ahead and drilled out the centering ring for a t-nut.




My nut assembly for the nose cone tip.







And, everything finally glued in place (except for the fins of course, but you knew that.)







Oh, and I almost forgot, I went through, sanded EVERY bonded surface, and wiped it down with acetone. That was fun. A LOT of fun.

blackbrandt said:

I mark the coupler tube using the fin slots so I can determine sheer pin locations.

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How do you mean, exactly? Did you cut the fin can down?

I like your sanding jig, but what are you adding that t-nut to a centering ring for?

I vote for this thread as the
absolute,, uncontested,, bar none most entertaining thread of 2014......................

And that crack about--- Hey,,, what the hack is wrong with you people......... really caught me off guard........

I gotta go get some paper towels and clean the soda out of my keyboard now....

Teddy

AlnessW said:

How do you mean, exactly? Did you cut the fin can down?

I like your sanding jig, but what are you adding that t-nut to a centering ring for?

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I inserted the coupler tube for the av bay into the end of the tube with fin slots. Then I marked on the coupler tube where the fin slots are so I can get 3 marks 120 degrees apart. Then I pull the coupler tube out and extend the lines all the way down.

https://www.wildmanrocketry.com/pdf/Kits/Wildman/Instructions/EX_DarkStar.pdf

This explains it better.


The tnut is for motor retention.

blackbrandt said:

I inserted the coupler tube for the av bay into the end of the tube with fin slots. Then I marked on the coupler tube where the fin slots are so I can get 3 marks 120 degrees apart. Then I pull the coupler tube out and extend the lines all the way down.

https://www.wildmanrocketry.com/pdf/Kits/Wildman/Instructions/EX_DarkStar.pdf

This explains it better.


The tnut is for motor retention.

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Oh that makes sense now, thanks for the link. I take it you'll be using a machine screw/washer for motor retention?
Also, got a motor in mind?

Yup. If the aeropac falls through. And yes. I plan on flying this at LDRS. J145 long burn sparky and a 54mm Tiger Tail motor. This will be fun.

looking good there

Wow, Matt, you're skills have come a long way in the last couple of years.

Kevin

Thank you! I also got the centering rings glued on tonight. I glued them on with US Composites 635 medium.

blackbrandt said:

Yup. If the aeropac falls through. And yes. I plan on flying this at LDRS. J145 long burn sparky and a 54mm Tiger Tail motor. This will be fun.

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Sounds like fun indeed! I'll be thinking of you guys and that monster rocket as well.

chadrog said:

Hook and line caught, bled immediately, flash frozen - makes perfect sense.

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You forgot the fillet process, you just lost your fins. :y:

BINARY SUSHI RISES AGAIN!!!!!





Thanks to Mark at Stickershock.... these are shipping on Monday. Goal is to have this rocket have all fins glued on over the course of tomorrow. This rocket will be shown off at an Astronomy Days at a local museum.... There is a Tripoli table there that I am working. Can't wait to show the nerdiness.

That's really cool Matt...
I like that idea....

Teddy

The design is cool. That's going to look great with the Stickershock decals!

Are you using "chop sticks" for rail guides?

Very clever name design..... but something smells "fishy" about it.

Does it require using "Soy sauce" in lieu of grease when assembling motor?

blackjack2564 said:

Are you using "chop sticks" for rail guides?

Very clever name design..... but something smells "fishy" about it.

Does it require using "Soy sauce" in lieu of grease when assembling motor?

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Wasabi for extra kick!

it would be a BIG chop stick for sure!!

What about using fish oil as grease for assembling motor? Soy sauce is bad because it does not lubricate (not sure if fish oil is any better, as the heat will turn it into carbon)

Altimeter bay cut. I will mill it tonight and drill the holes.

First set of externals and second set of internals. Externals are U.S. composites 3:1 medium with aerosil Cabosil and black dye. Internals were same except no aerosil and chopped carbon was added.

Old MacDonald's middle name?

Wow. Fail.


BTW, any opinions of using 2 6-32 SS all thread for the av bay? Should that be strong enough?

blackbrandt said:

Wow. Fail.


BTW, any opinions of using 2 6-32 SS all thread for the av bay? Should that be strong enough?

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I think 6-32 would work. Personally I would bump it up to 7-32 and knowing how much BP you use it may be a good idea

blackbrandt said:

Wow. Fail.


BTW, any opinions of using 2 6-32 SS all thread for the av bay? Should that be strong enough?

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I have used a pair of 10-32 aluminum rods for a rocket of this exact size. I bet you'll be fine, but you may want to consider moving to 8-32 to be sure...it certainly won't be overkill.

qquake2k said:

I'd go with 1/2"-13 just to be sure.

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You sure? I think 1"X20 would be safer. you dont want the avbay bulkheads coming off........

conman13 said:

You sure? I think 1"X20 would be safer. you dont want the avbay bulkheads coming off........

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Yeah.... but if you're gonna go with that, may as well just bump it up to 1.5"X6, I mean those rods are holding the AV-bay together....

Nate

nute said:

Yeah.... but if you're gonna go with that, may as well just bump it up to 1.5"X6, I mean those rods are holding the AV-bay together....

Nate

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I would agree, but I'd go with 1-1/2"-12 fine thread.