Author Topic: 29mm minimum diameter goodness  (Read 2713 times)

Offline RKeller

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29mm minimum diameter goodness
« on: November 14, 2015, 08:12:22 PM »
I've been collecting stuff for a new scratch build. this time I'm going small. so far I have 3ft of 29mm thin wall (.040") flourescent orange fiberglass, a 6" coupler and now a sheet of 1mm (.039") carbon fiber. I have a couple options for a nose, including a wood one, but I'm hoping soon a vendor will be selling either a FW fiberglass one or CTI will mold one in glass filled polycarbonate.
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline mdutch

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Re: 29mm minimum diameter goodness
« Reply #1 on: November 15, 2015, 10:34:43 AM »
Riley,
I have a nose cone that has been sitting in my scrap heap for years now, it's plastic but it does fit in a 29mm tube and it has a length of Kevlar and a Mylar streamer that goes with it.
Interested?
I can bring it to the BF launch if you want it.

The photo I took is too big to attach, (1.56 mb), so unless you can increase the size of allowable attachments I can't show it to you.
« Last Edit: November 15, 2015, 05:38:37 PM by mdutch »
Mike Dutch
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"I just Want to Fly ROCKETS"

Offline RKeller

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Re: 29mm minimum diameter goodness
« Reply #2 on: November 15, 2015, 01:13:10 PM »
Thanks Mike, I'll bring the tube to the launch so we can see how it fits. attachment size is increased to 5000k now so you should be able to upload the image if you want.
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RickB

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Re: 29mm minimum diameter goodness
« Reply #3 on: November 16, 2015, 01:23:30 PM »
Interesting.  Out of curiosity, how do you attach the fins for a minimum-diameter fiberglass design?  Or the lower rail button (or are you planning on using a tower)?
Rick Barnes

Offline RKeller

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Re: 29mm minimum diameter goodness
« Reply #4 on: November 16, 2015, 08:41:19 PM »
First thing you have to do is wash the fiberglass with dish soap and hot water to remove any mold release and clean it. to attach the fins I will use Rocketpoxy on this build. anywhere the rocketpoxy or any other epoxy is going needs to be sanded then cleaned with alcohol to help adhesion. I will have to get or make fixtures to make sure the fins are nice and straight.

regarding buttons, there are conformal rail guides you can epoxy on, but I will likely use a tower.
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

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Re: 29mm minimum diameter goodness
« Reply #5 on: November 20, 2015, 04:21:42 PM »
still messing with the sim file, but this is what i'm thinking at this point.

payload tube is going to be a little different than normal to make some extra room. need to fit an altimeter, a GPS tracker and two batteries in there.
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high