Search found 2632 matches

by OverTheTop
Wed Nov 14, 2018 8:45 am
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 76
Views: 21543

Re: Joe Turner's 38mm Scratch-Build

Nice work Joe! Love the double-sided thing you have happening with the modules and veroboard. I see you have held the radio modem in place with hotmelt. It could suffer from a shear failure under vibration. I would suggest just a wrap of electrical tape or a cable tie to pin it down for some insuran...
by OverTheTop
Tue Nov 13, 2018 7:57 pm
Forum: How's the Weather..?
Topic: Strange Goings On
Replies: 7
Views: 268

Re: Strange Goings On

I had noticed something similar, now that you mention it. My last thread in "electronics" is up to about 5k views in a very short period of time. I have also checked and currently there are 75 guests on line. That number sounds anomalous.

Any ideas kopius?
by OverTheTop
Tue Nov 13, 2018 12:21 pm
Forum: News & Events
Topic: Rocket Lab - “It’s Business Time”
Replies: 2
Views: 1085

Re: Rocket Lab - “It’s Business Time”

Again, it is so nice to see their success 8) .
by OverTheTop
Thu Nov 08, 2018 1:37 pm
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 76
Views: 21543

Re: Joe Turner's 38mm Scratch-Build

Excellent work Joe! How do you feel about building a tower that supports 4 fin rockets in 54mm and 75mm airframe sizes? :D

I can lend you an angle-grinder to lop the extraneous fin off :D
by OverTheTop
Mon Nov 05, 2018 11:40 am
Forum: Electronics
Topic: Four-Camera HD Video Mount for 4" Rocket
Replies: 3
Views: 10573

Mount Finished

Mount Finished Managed to get some sanding done on the ID to get it to fit the rocket. Not a trivial job on the ABS. Again my aiming for too little clearance has bitten me. I guess I will get out of the habit one day. A quick spray of Plastic Primer, followed by a nice gloss white should keep the h...
by OverTheTop
Fri Nov 02, 2018 5:22 pm
Forum: Electronics
Topic: Four-Camera HD Video Mount for 4" Rocket
Replies: 3
Views: 10573

Four-Camera HD Video Mount for 4" Rocket

Four-Camera HD Video Mount for 4" Rocket I want a camera assembly that I can throw onto a rocket when I need some video for whatever reason. My main application will be for showing the operation of the fins on the Vertical Trajectory System during flight for diagnostic purposes. My last rushed...
by OverTheTop
Mon Oct 29, 2018 4:35 pm
Forum: Support & Recovery & Misc.
Topic: Launch Power from Lithium Ion Jumpstarter
Replies: 2
Views: 13714

Re: Launch Power from Lithium Ion Jumpstarter

I think I remember a car cranking is around 200A or something. I remember my diesel Nissan Patrol had an extra 90A just for the glowplugs. If it can crank a car, a temporary low-resistance from an igniter won't even get it working up a sweat. The overall amount of energy delivered to the eMatch is i...
by OverTheTop
Tue Oct 23, 2018 3:54 pm
Forum: Thunda Down Under 2019
Topic: Thunda Down Under
Replies: 1
Views: 15734

Re: Thunda Down Under

I hate sitting sideways on toilets...
by OverTheTop
Mon Oct 22, 2018 11:32 am
Forum: Mid/High Powered Rocketry
Topic: L1/ L2 lrocket design
Replies: 4
Views: 2245

Re: L1/ L2 lrocket design

Given it is a L1 rocket I would have thought it would be over the sort of mass where we would normally use streamers. I would think a small x-form chute or something might work ok, before you deploy the main. I am assuming you are going dual-deploy? Something I do on a regular basis is just blowing ...
by OverTheTop
Sun Oct 21, 2018 2:28 pm
Forum: Mid/High Powered Rocketry
Topic: Binder Design Velociraptor
Replies: 84
Views: 26011

Re: Binder Design Velociraptor

I suppose I should mention that it flew with the Vertical Trajectory System a little while back!
PadResize.jpg
PadResize.jpg (118.77 KiB) Viewed 594 times


Details on that thread, here: viewtopic.php?f=56&t=5324&start=45
by OverTheTop
Sun Oct 21, 2018 2:24 pm
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 76
Views: 21543

Re: Joe Turner's 38mm Scratch-Build

4" diameter, 54mm motor mount, about 7' tall. Goes good on L motors :D Was originally my L2 bird but has been changed to fiberglass tube. https://forum.ausrocketry.com/viewtopic.php?f=6&t=1782&start=60 With your recovery, just think about each individual function and how it works. Chute...
by OverTheTop
Sun Oct 21, 2018 11:25 am
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 76
Views: 21543

Re: Joe Turner's 38mm Scratch-Build

Sounds like a good idea :)

It is similar to what I do in the Velociraptor. I have a nomex blanket between the charge canisters and the deployment bag I have the main in. That is my normal configuration for main chute.
by OverTheTop
Fri Oct 19, 2018 2:53 pm
Forum: I could use that
Topic: Right angle push button switch relay?
Replies: 5
Views: 17364

Re: Right angle push button switch relay?

3D printed bell-crank mechanism that attaches to the camera housing or airframe?

You could also make it out of G10 or wood or whatever...
by OverTheTop
Wed Oct 17, 2018 4:05 pm
Forum: Rocketry Control Room
Topic: Restoration of an original Apollo Guidance Computer
Replies: 3
Views: 463

Re: Restoration of an original Apollo Guidance Computer

This is a really good book on the history and workings of the unit:

agc.jpg
agc.jpg (23.85 KiB) Viewed 409 times


Try amazon or the AIAA as possible sources. Prices vary wildly!

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