Search found 2663 matches

by OverTheTop
Sun Sep 16, 2018 10:44 am
Forum: Scratch Built
Topic: Steampunk 1
Replies: 35
Views: 2483

Re: Steampunk 1

Nice result. Well done 8)
by OverTheTop
Fri Sep 14, 2018 6:43 pm
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 21411

Re: Australian Rocketry shipping container pre-order announcement

I -could- have done an MD O3400 project, but I wouldn't have been able to do much more. I don't get many opportunities to fly these days, so I opted for doing a bunch as well as something I haven't tried before. The O3400 might be a next time around flight. :) I have an O3400 sitting in the cupboar...
by OverTheTop
Fri Sep 14, 2018 6:01 pm
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 21411

Re: Australian Rocketry shipping container pre-order announcement

I did a back the envelope tally - only made it to ~34% O across 31 composite motors in total. I feel so inadequate. :oops:


I am ~31% P I think. Have fun at whatever level you are flying. At least you won't be in the poorhouse as much as me (or the doghouse for that matter).
by OverTheTop
Thu Sep 13, 2018 11:55 am
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 21411

Re: Australian Rocketry shipping container pre-order announcement

I think I should step away from the credit card now. I've got about 50k Ns on order :shock: . Should keep me going for a while.
by OverTheTop
Wed Sep 12, 2018 9:47 pm
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 96
Views: 30930

Re: Joe Turner's 38mm Scratch-Build

Perhaps this is an opportunity to developer lighter extensions - save some weight :-) Probably not a problem :) although vibration can reduce that a little. Yes,something could be done with a finer safety factor to lighten it up if you are really keen. I generally make my own to length and strength...
by OverTheTop
Wed Sep 12, 2018 7:13 pm
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 96
Views: 30930

Re: Joe Turner's 38mm Scratch-Build

Given Joe's using the AeroPack made extensions I can't imagine this would be an issue in the slightest. Remember that those extensions are designed for 38mm and 54mm use. From the site: Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Red Anodizing Each extension has a 5/16-18 Stainless St...
by OverTheTop
Wed Sep 12, 2018 10:38 am
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 96
Views: 30930

Re: Joe Turner's 38mm Scratch-Build

Question: Aside from weight, and extra effort to set up, I can't think of any issues with combining extensions.... Can anyone else? If it gets too long and there is a weakness in the middle of the extensions it may want to buckle under high thrust. You can work out your peak thrust and see if it is...
by OverTheTop
Wed Sep 12, 2018 7:25 am
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 21411

Re: Australian Rocketry shipping container pre-order announcement

I have just put in another order, and will have a final one to submit tomorrow (more CTI L motors). I might need a bigger magazine to store everything now I think :shock:
by OverTheTop
Mon Sep 10, 2018 6:37 pm
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 21411

Re: Australian Rocketry shipping container pre-order announcement

Ping Blake on info@ausrocketry.com. He is quite helpful and flexible at times :D
by OverTheTop
Mon Sep 10, 2018 6:34 pm
Forum: Higher, Faster, Further
Topic: Vertical Trajectory System (with some 3D printed parts)
Replies: 69
Views: 35877

Re: Vertical Trajectory System (with some 3D printed parts)

:D :D

I am pondering whether to split open the other electronic items and flight-proof them. In my spare time I think...
by OverTheTop
Mon Sep 10, 2018 2:01 pm
Forum: Higher, Faster, Further
Topic: Vertical Trajectory System (with some 3D printed parts)
Replies: 69
Views: 35877

Re: Vertical Trajectory System (with some 3D printed parts)

Solder balls are a manufacturing defect. Typically seen from reflow processing of a surface-mount PCA. Given the size of the balls I almost think they were from the sloppy hand-soldering of some of the components. It was basically suffering from what I call "Chinese Toy Syndrome" where a t...
by OverTheTop
Sun Sep 09, 2018 6:14 pm
Forum: Melbourne Amateur Rocket Society Inc.
Topic: Tripoli (Victoria) Launch, 9th September 2018
Replies: 1
Views: 1035

POSTPONED: Tripoli (Victoria) Launch, 9th September 2018

Better late than never...

Today's launch had to be cancelled due to cloud cover. It has been rescheduled for the following weekend on 16th September.
by OverTheTop
Fri Sep 07, 2018 5:20 pm
Forum: Higher, Faster, Further
Topic: Vertical Trajectory System (with some 3D printed parts)
Replies: 69
Views: 35877

Re: Vertical Trajectory System (with some 3D printed parts)

Flight Diagnosis Over the past 1.5 weeks I have managed to download the altimeter data and video files from the flight. A quick glance about a week back showed some promise that something had at least worked somewhat, although there was some curious funkiness in some of the plots. Here is what I ha...
by OverTheTop
Wed Sep 05, 2018 7:36 am
Forum: Higher, Faster, Further
Topic: Vertical Trajectory System (with some 3D printed parts)
Replies: 69
Views: 35877

Re: Vertical Trajectory System (with some 3D printed parts)

Well that’s a bit anoying but I guess you leart a few things. I did initially add a tie around my remove before flight pins so they could not fall out. I since dropped that idea as uneccissary, but for more complex flights like this you might want to consider it. The pins are visible in the above p...
by OverTheTop
Tue Sep 04, 2018 2:12 pm
Forum: Higher, Faster, Further
Topic: Vertical Trajectory System (with some 3D printed parts)
Replies: 69
Views: 35877

Re: Vertical Trajectory System (with some 3D printed parts)

Quick Update Life is getting in the way of this currently :( . I still have not had anything like a good look at the logging and meaningful analysis. Basic synopsis: :arrow: Flight was nominal, like any standard HPR flight. It was a bit of a big gravity turn by the looks of it, but no worse than ot...

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