3D Contest #1(2022): Best design for an AV bay

[cwbullet]

Ok, I am going to try this again. 3D designers get your CAD software buzzing. The goal of this thread is to inspire innovation.

Rules:

1. The forum will judge the winner.
2. It must fit a commercial altimeter that does dual deployment.
3. It must be printed and shown in a rocket.
4. Photos and files must be posted in this thread.
5. A minimum diameter design will get bonus points (meant to fit a small rocket).
6. The smallest design will get bonus points.

Prizes will evolve. Currently, we have a 12-inch Kevlar blanket, shock cords, and some parachutes.

Good luck.

 

[tHoagland]

Deadline?

 

[cwbullet]

Deadline?

I missed that. I am going to go with 18 March with an option to extend.

 

[0011001100]

Full DD in a 29mm Blackhawk kit. Bay is 4 inches long and 1 inch ID. Also have used this same altimeter in a Loc Precision 1inch kits for dual deploy on a C6-5.
It does not have the 4-40 threaded rods in currently that hold it all together but is otherwise complete.

 

[cwbullet]

That is a good start.

 

[dr wogz]

Mine from a few years ago.. (Remove if 'duplicates' / previous entries not allowed..)

https://www.rocketryforum.com/threads/3d-design-contest-entry-av-bay-sled-thingie.150811/

 

[ShadowSpire48]

Mine from a few years ago.. (Remove if 'duplicates' / previous entries not allowed..)

https://www.rocketryforum.com/threads/3d-design-contest-entry-av-bay-sled-thingie.150811/

I tried loading the version 3 (all the holes) into Cura but it loads in the size of a thumbtack.

 

[dr wogz]

I tried loading the version 3 (all the holes) into Cura but it loads in the size of a thumbtack.

yeah, Cura is "metric only", so you have to convert it. I drew it up in Imperial, so Cura thinks 1" is 1mm. Go into scaling, and set it 2540% (Cura kinda sucks for converting / they don't make it easy. found this out recently with someone else who has Cura)

 

[tHoagland]

yeah, Cura is "metric only", so you have to convert it. I drew it up in Imperial

There is a CURA plug-in that will convert imperial units to mm. It's called Barbaian Units.

 

[WoShuGui]

X-style sled for 4” HED Nike Smoke. Holds Eggtimer Quantum, Missile Works RRC2+ and Eggfinder Mini.

 

[WoShuGui]

Bayonet style nose cone sled for 2.6” Wildman Goblin. Eggtimer Quark and Eggfinder. Technically DD if you use a cable cutter for the main, but I will not complain if the official ruling says this one doesn’t count.

 

[Alan R]

This is just a can with screw top to hold my tracker and battery. No DD.
The smaller one is an attempt at 29mm min diameter but WIP. It needs to be longer cause the battery and tracker have to be stacked inside and the thread hole will have to go through the lid.
The blue one is functional. It's 37.8mm w/ 39mm cap. Small as I could get the tracker and a battery in (300 or 450 lipo). Eggfinder mini.
Somewhere I have a version in progress of the 38mm tube with an internal screw ... cant find it right now.
Edit: oops I realized I failed rule #2 about the dd but I'm leaving this here anyway.

 

[cwbullet]

Some very nice designs.

 

[watheyak]

Here’s the sled I’ve been using for 54mm minimum diameter rockets. It slides up into the nose one pretty far. Printed with Siraya Blu tough resin. It holds a Featherweight Raven, Tracker and Fingertech screw switch. Survived 90+ Gs.






Files:
https://www.rocketryforum.com/threa...best-design-for-an-av-bay.171147/post-2274079

 

[BenCook]

This is my first design for a 3d printed ebay for my Wildman Dark Star Junior. It is a 2.1" rocket. I plan on going 2 stage so I put an Eggtimer Proton in there as primary with an Eggtimer Quantum as backup. I also included the Eggtimer Telemetry system to broadcast information during the flight.

It is Modular design in that I can remove all the electronics with only 3 screws and they can be placed in another rocket with the same three screws. Altimeters are mounted on sleds that key into cleats that secure with a single screw. Batteries slide into slots and are retained by the coupler tube so they cannot slide around. See images and files below. Click on the link to see a youtube video showing how the modular system works and a tour of the ebay.

 

[Alan R]

This is my first design for a 3d printed ebay for my Wildman Dark Star Junior. It is a 2.1" rocket.

That is sweet, well thought-out design work Ben.

 

[cwbullet]

This is my first design for a 3d printed ebay for my Wildman Dark Star Junior. It is a 2.1" rocket. I plan on going 2 stage so I put an Eggtimer Proton in there as primary with an Eggtimer Quantum as backup. I also included the Eggtimer Telemetry system to broadcast information during the flight.

It is Modular design in that I can remove all the electronics with only 3 screws and they can be placed in another rocket with the same three screws. Altimeters are mounted on sleds that key into cleats that secure with a single screw. Batteries slide into slots and are retained by the coupler tube so they cannot slide around. See images and files below. Click on the link to see a youtube video showing how the modular system works and a tour of the ebay.

Very nice!

 

[messedupryan]

It is Modular design in that I can remove all the electronics with only 3 screws

Hoping to take advantage of these sleds and single screw extraction for my 2.14" and 4" e-bays I am working on (cardboard/wood still for me at the moment.)

 

[cwbullet]

The contest has been extended to 1 May by special request.

 

[cwbullet]

Here’s the sled I’ve been using for 54mm minimum diameter rockets. It slides up into the nose one pretty far. Printed with Siraya Blu tough resin. It holds a Featherweight Raven, Tracker and Fingertech screw switch. Survived 90+ Gs.

View attachment 508196
View attachment 508199
View attachment 508197
View attachment 508198

I do not see your files. Did you want to enter?

 

[BenCook]

Is the contest over?

 

[cwbullet]

I will post the poll tonight. I was giving the last post an opportunity to post his files.

 

[watheyak]

Sorry for the delay everyone, I've been away.

Thanks for the contest, Chuck. And good luck everyone!

 

[dr wogz]

Sorry for the delay everyone, I've been away.

Thanks for the contest, Chuck. And good luck everyone!

post some pics please!

 

[watheyak]

post some pics please!

They were in post #14, but I had a brain fart and forgot to post the .STL. and it was too late to edit the original post.

https://www.rocketryforum.com/threa...est-design-for-an-av-bay.171147/#post-2251105

 

[dr wogz]

They were in post #14, but I had a brain fart and forgot to post the .STL. and it was too late to edit the original post.

https://www.rocketryforum.com/threa...est-design-for-an-av-bay.171147/#post-2251105

cheers, thank you!

 

[OzHybrid]

I will post the poll tonight. I was giving the last post an opportunity to post his files.

Where's the poll? Not seeing it.

 

[FMarvinS]

Whatheyak,
Neat design! Any info/video on flights utilizing this set up?

Fred, L2
KG4YGP

 

[watheyak]

Whatheyak,
Neat design! Any info/video on flights utilizing this set up?

Fred, L2
KG4YGP

Thanks Fred. There's a whole build thread for the L record rocket I made last year. Here's a link to the page with the video.

https://www.rocketryforum.com/threads/mach-3-5-loki-l-altitude-record-attempt-build.163484/page-4

 

[cwbullet]

They were in post #14, but I had a brain fart and forgot to post the .STL. and it was too late to edit the original post.

https://www.rocketryforum.com/threa...est-design-for-an-av-bay.171147/#post-2251105

Just post them at the end of the thread and I will add them to the post.