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Flying Basket of Death and Destruction Build Thread
- Thread starter davetherocketguy
- Start date
Prolly not the ideal background.
ILUVSMGS18
Just Another Disc Hoarder
- Joined
- Oct 31, 2014
- Messages
- 2,503
What would be a better one then?
Oh I think the issue is I have it on black colored cardboard. Yeah, it's a little hard to see the frame.
Gotta admit, I've been envisioning this part of the rocket for a long time and trying to imagine what it will finally look like so it's a little odd and kinda cool to finally see it all start to come together. I've been cutting CF tubes for a while now.
Don't forget lighter - hopefully.
Oh, it'll be hecka stronger for sure. Faster? Ehhhh not so much. Hopefully MUCH slower on the descent.
The chute cannon on top is going to be longer and wider to accommodate a larger chute. My aim is to get it to around 5-10 FPS or lower. I want people to actually have a chance at hitting it with a disc on the way down. I still don't think anyone will ever be able to hit it with a disc but it'll be fun to try.
LOL DRONE FOOTAGE FOUND!
https://vimeo.com/365168003?activityReferer=1
Go to 5:40
And if you want to see a REALLY crazy project go to 11:00. Can you say "Illuduim Q-36 Explosive Space Modulator?" I knew you could.
https://vimeo.com/365168003?activityReferer=1
Go to 5:40
And if you want to see a REALLY crazy project go to 11:00. Can you say "Illuduim Q-36 Explosive Space Modulator?" I knew you could.
So more progress...This is the upper spoke assembly. The little fiberglass tube is where the electronics will live inside of a happy little coupler. This will make more sense as more progress is made. The one photo is pre epoxy. The other is post epoxy. Lawdy am I a slob lol.
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Lots more gluing done last night. So a preliminary dry-fit and weigh-in. Looking good so far but it's heavier than I anticipated. The original was almost 6 lbs. This is currently sitting at almost the same weight but there's no motor, chute, chute cannon or electronics. I predict 8-9 lbs total weight. So now that I have an idea what the weight is going to be I need to order the chute.
I'm gonna need a bigger motor. :|
-Dave
I'm gonna need a bigger motor. :|
-Dave
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Just in case anyone wants to nerd rocket out with me...
And looking over my stock of motor cases and what is available on the market I think I have settled on a Loki Research I377 for this new version. Gives a little more thrust/weight which for this iteration is not a bad thing. The I140 I was using on the previous version barely fit into the I categorization. The I377 is on the upper range of I motors and it delivers 515 NS thrust rather than the 336 NS of thrust the I140 has.
And looking over my stock of motor cases and what is available on the market I think I have settled on a Loki Research I377 for this new version. Gives a little more thrust/weight which for this iteration is not a bad thing. The I140 I was using on the previous version barely fit into the I categorization. The I377 is on the upper range of I motors and it delivers 515 NS thrust rather than the 336 NS of thrust the I140 has.
Dang stupid 5 minute edit window...forgot to add - my current goal is to make it to Indiana Rocketry's first launch of the season on 11/10 near Tab, IN. So if you are anywhere near there and want to come watch keep an eye on this thread. That place is literally in the middle of NOWHERE. I'll also have a contingent from the Notre Dame Rocketry Team I work with there as well so you'll get to see some of their work for this year. They'll just be flying their itty-bitty subscale they've designed for this year's NASA SLI competition. Plus there will likely be other rockets flying there as well.
brutalbrutus
* Ace Member *
Something about this doesn't compute with my image of somebody who is into rocketry... hmm, what can it be?...
Oh, I think I see what the problem is. This...
For some reason I see your reaction to needing a bigger motor more like this...
Weeeeeellll...Kinda. Thing is, this launch in Tab will not have a rocket motor vendor attending so I have order motors and have them shipped which adds a fair bit of $$ to the cost. Plus that I140 was soooooo perfect for the old version finding another that's as well suited for this new version is a bit of a PITA and makes me a bit needlessly nervous.
Doesn't really matter one way or another I'm going to have to order a motor no matter what because I don't have anything in stock that will work for the FBD&D.
So I got a really important component in the mail today...the chute! This 70" beauty is only 3.1 OZ and packs to something about half again as big as can of beer. I had no idea this was going to be soooooo light.
So I've started a process I knew was coming at some point. It's pretty obvious that FBD&D v. 3.0 is not flying again. There are parts that are useful to other project and in particular for b. 4.0. So the scavenging has begun. The useful bits have been stripped off and now this poor thing.needs to be tossed. It just looks so...sad. This is going to have to be like taking off a band aide - do it quickly. Just stuff it in the trash can and quickly walk the van out to the end of the drive on trash day.
Sigh
Sigh
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ILUVSMGS18
Just Another Disc Hoarder
- Joined
- Oct 31, 2014
- Messages
- 2,503
You could turn it into a decoration, and give it away at a tourney. Better than just throwing it away IMO.
You really think someone would want that?
zontar
Double Eagle Member
I think I'll let someone else have it.....
Tell you what...If someone claims it between now and tomorrow morning who is willing to p/u from my house I'll hang on to it for a week or two. Otherwise it's hasta la vista baby.
So important testing last night. In the first picture is my set up to test the stresses on the lower basket stopper plate. Loaded up 2 buckets with a little over 5 gallons total between the 2 of them and put them in the basket. In the second picture you see the stopper plate glued to the green center tube and I just want to make sure it's going to hold up to to the flight stresses of the lower basket assembly resting on it. So the average thrust is going to be around 10:1 or roughly 10g's of force for 1.4 seconds. This part of the basket weighs in at 52 or so ounces so ten times that is 520 ounces or 32.5 lbs and since water is 8.33 lbs/gallon thats about 3.9 gallons. The two buckets were placed like this for a little over 4 seconds and nothing happened - thank goodness. So now I know this needs no extra reinforcement and anything I do from this point to that plate is just bonus strength.
The last picture is what $50 of propellant looks like and FINALLY some prints I ordered from LDRS came in the mail. Yay!
The last picture is what $50 of propellant looks like and FINALLY some prints I ordered from LDRS came in the mail. Yay!
