Search found 2539 matches

by OverTheTop
Sun Apr 12, 2009 9:21 pm
Forum: Electronics
Topic: MAD! Of Course!
Replies: 7
Views: 1714

Oops, I broke it. Let's try that image again...

Image
by OverTheTop
Sun Apr 12, 2009 9:11 pm
Forum: Electronics
Topic: MAD! Of Course!
Replies: 7
Views: 1714

MAD! Of Course!

Magnetic Apogee Detection I have resurrected (appropriate description as I post this on Easter Sunday :D ) my magnetic apogee detection project. Actually I managed to find it again after losing it around 12 months ago... http://img22.imageshack.us/img22/7833/mad1b.jpg AA battery is included for scal...
by OverTheTop
Sat Apr 11, 2009 4:23 pm
Forum: Rocketry Control Room
Topic: Show us your rocket room / shed / workshop
Replies: 72
Views: 14003

There are two work benches in the picture. The one on the left (with the vice) is for heavy mechanical work. There is a pull-out parts washer under there (on rails). The other bench is my electronic bench. L-R are Tektronix 100MHz oscilloscope (with sample-hold and A-D module), 20V 30A power supply,...
by OverTheTop
Fri Apr 10, 2009 8:56 pm
Forum: Rocketry Control Room
Topic: Show us your rocket room / shed / workshop
Replies: 72
Views: 14003

Just got around to making some pics of my work area. Enjoy! http://img9.imageshack.us/img9/3337/workshop1.th.jpg http://img382.imageshack.us/img382/9533/workshop2.th.jpg The entire garage is eight squares (800 sq feet). 2/3 of that is for the cars and storage. The other third is workshop and store. ...
by OverTheTop
Wed Apr 08, 2009 6:08 pm
Forum: Suburban Rocketry
Topic: LexxJet
Replies: 15
Views: 5251

Please put me down for one also. I'll order some other bits at the same time, so let me know when it is available. No rush.

I guess that means my daughter is going to want another rocket also... I think she might have a go at a Stonebreaker.

Stewart
by OverTheTop
Mon Apr 06, 2009 9:48 am
Forum: Rocketry Control Room
Topic: Orbiter Main Engine Hisory. Article: 27000 Seconds In Hell
Replies: 1
Views: 1705

Orbiter Main Engine Hisory. Article: 27000 Seconds In Hell

Attached is an article I copied many years ago. I think it is from Spaceflight magazine. It details some of the engineering development of the Shuttle's main engines and is a REALLY INTERESTING read. How about a 75000 horsepower fuel pump with liquid-oxygen cooled bearings, for instance! Enjoy :D ht...
by OverTheTop
Fri Apr 03, 2009 8:16 am
Forum: Rocketry Control Room
Topic: NASA builds a lemon
Replies: 19
Views: 4496

One of the primary reasons for the retirement of the shuttle is reliability. I noted the following stats in an article just before the Discovery STS-119 mission: --- NBC Nightly News (3/11, story 5, 1:30, Costello) said "had they gone ahead with the launch tonight, there could have been a very ...
by OverTheTop
Sun Mar 29, 2009 6:38 pm
Forum: MMRG
Topic: Wetlands Launch site.
Replies: 66
Views: 13279

Thanks for turning up today Wombat and Krusty. Some extra rockets are always great to see.

Sad to see your large rocket zipper Krusty :(

Must get some shorter delay Ds for my Orion. It might keep my feet dry during recovery :D

Catch everyone some other time.

Stewart
by OverTheTop
Sat Mar 28, 2009 7:55 pm
Forum: MMRG
Topic: Wetlands Launch site.
Replies: 66
Views: 13279

Looks like you guys had some fun! Sorry I couldn't make it.

We will be there on Sunday 29th with our fleet of five. Probably around noon, or a bit after.

Feel free to drop in for a look!

Stewart
by OverTheTop
Fri Mar 27, 2009 7:29 am
Forum: MMRG
Topic: Wetlands Launch site.
Replies: 66
Views: 13279

Oops. Sunday is the 29th of March (this year anyway!).

Yes, I meant the 29th. Sorry I can't get there the Saturday as well. Enjoy your flights.

Stewart
by OverTheTop
Thu Mar 26, 2009 8:51 pm
Forum: MMRG
Topic: Wetlands Launch site.
Replies: 66
Views: 13279

Weather is looking good for Sunday launch (27th March). Who is interested in flying, and what times is everyone looking at?

I suspect around midday would be a civilised time for us I think.

Stewart
by OverTheTop
Sat Mar 21, 2009 8:03 pm
Forum: MMRG
Topic: Contact information on MMRG, to put in library books!
Replies: 3
Views: 1821

I have to return the books in a couple of days. I have made up a nice color stick-on label into the books somewhere. It mentions Australian Rocketry website, MMRG, and Suburban Rocketry. Sorry if I missed anyone else out! Interestingly, somebody already has the books reserved! Might get along to a l...
by OverTheTop
Fri Mar 13, 2009 7:49 pm
Forum: Electronics
Topic: Source for SMD components
Replies: 17
Views: 4272

As far as using solder paste for the SMD stuff, I would probably give it a miss. I would use the thinnest solder you can find (I use 0.35mm dia) and a flux pen to make it stick. I usually don't use magnification when soldering (except the 0.5mm pitch chips), but I do inspect everything when I am fin...
by OverTheTop
Fri Mar 13, 2009 7:26 pm
Forum: MMRG
Topic: Wetlands Launch site.
Replies: 66
Views: 13279

I'll see if we can make it along also. Might have my magnetic apogee detector ready for a fly in my new Interrogator by then also.

Will be good to see some slightly bigger stuff.

Stewart
by OverTheTop
Thu Mar 05, 2009 3:55 pm
Forum: MMRG
Topic: Contact information on MMRG, to put in library books!
Replies: 3
Views: 1821

No problems. I'll tart up a nice ad for Australian Rocketry and MMRG. I might even ask them to display the books to generate a bit of interest. "Model Rocketry Handbook" is the lastest (7th) edition. The "50 Model Rocket Projects for the Evil Genius" could have been a bit of a du...

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