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Author Topic: My First Dive Vid - Neptune SB-1  (Read 10892 times)

Subculture

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Re: My First Dive Vid - Neptune SB-1
« Reply #25 on: January 28, 2015, 02:16:04 PM »

I really wouldn't advise sailing a model submarine in a river or canal. You can never make them 100% failsafe, and even if it's performing well, you can still end up with it snagged up in something. So unless you're quite happy to one day go home without your pride and joy tucked under your arm, stick to waters where the boat is fairly easy to recover.

Cobs

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Re: My First Dive Vid - Neptune SB-1
« Reply #26 on: January 28, 2015, 02:37:59 PM »

But you know im going to :) ... or at least try it in calm/pooled areas, it will have some string or something back to me should it get snagged, ill go in for it myself if need be but hoping that doesnt happen...much :/
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U-33

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Re: My First Dive Vid - Neptune SB-1
« Reply #27 on: January 28, 2015, 03:06:16 PM »

Andy is quite right, Rob...I lost a submersible in a river many years ago, and despite the best efforts of the local sub aqua club, it was never found. It wasn't a fast flowing river, but quite deep, and the place where it went down was really still water...but I never saw my sub again.


It's a horrible feeling to return home with just the transmitter and no sub to go with it...I'd really advise you to think twice about sailing your Neptune in a river. And then think again...


Rich
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Rich

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Re: My First Dive Vid - Neptune SB-1
« Reply #28 on: January 28, 2015, 06:30:57 PM »

Finding suitable water to run a sub in is never an easy task. Most purpose built boating ponds tend to be either too shallow, resulting in your boat bottoming out unless it's a very small boat, or so deep that should something go wrong, it may involve requiring divers to recover it.

Even where depths are correct, ponds are often lacking in clarity making underwater navigation perilous unless you remain at periscope depth.

Swimming pools are the ideal place to run subs, giving all the major attributes required- good depth, easy recovery and clarity.

Cobs

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Re: My First Dive Vid - Neptune SB-1
« Reply #29 on: January 28, 2015, 06:44:08 PM »

Dont worry guys im not going to throw it away so easily, ill recce everywhere out before i put her in there, if its flowing or hazardous/obstructions ill not bother, there are plenty of pooled areas in rivers i can try, theres a couple of smaller rivers too, gonna be fun in the summer as my 3 kids will happily come along and use snorkels etc to accompany/help it along :)

In the meantime its a blizzard here so its back to the pool tonight :)
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Re: My First Dive Vid - Neptune SB-1
« Reply #30 on: February 03, 2015, 10:37:37 AM »

Upgraded the Hydroplanes ...


3d designed and printed by 2 good friends on the FPV forum :)
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U-33

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Re: My First Dive Vid - Neptune SB-1
« Reply #31 on: February 04, 2015, 02:18:08 PM »

They look good, Rob...how much bigger are they over the standard ones?


Rich
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Rich

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Re: My First Dive Vid - Neptune SB-1
« Reply #32 on: February 04, 2015, 03:23:57 PM »

Here you go Rich, original one on the right...
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U-33

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Re: My First Dive Vid - Neptune SB-1
« Reply #33 on: February 04, 2015, 04:24:49 PM »

Good grief...are these available for sale, Rob? I'd have a set of those if they are...


RIch
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Rich

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~~~~~~~  "Motorflotes need love too...."  ~~~~~~~

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Re: My First Dive Vid - Neptune SB-1
« Reply #34 on: February 04, 2015, 05:02:41 PM »

They cost 24 delivered, (they take 7hrs each to print), if you still want some let me know and ill put you in touch with him, they are a perfect wing shape, side view ...


Comes with a pilot hole ready, the yellow is a darker shade than the original but im not gonna bother spraying them

Rob
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Re: My First Dive Vid - Neptune SB-1
« Reply #35 on: February 04, 2015, 05:19:07 PM »

Pricey. Tried a quote at these chaps?

http://uk-3d.com/instant-quote/

Also join the two together with a sprue, then they count as a single part, and that generally lowers cost.

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Re: My First Dive Vid - Neptune SB-1
« Reply #36 on: February 04, 2015, 05:36:07 PM »

For the same size that site is 28 plus delivery, mine are made from ABS, i think theirs is PLA
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Re: My First Dive Vid - Neptune SB-1
« Reply #37 on: February 04, 2015, 06:12:37 PM »

They must be bigger than I thought. What size are these planes?

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Re: My First Dive Vid - Neptune SB-1
« Reply #38 on: February 04, 2015, 06:26:37 PM »

Big...


Rich
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Re: My First Dive Vid - Neptune SB-1
« Reply #39 on: February 04, 2015, 06:47:03 PM »

Roughly twice the size of the original, 3 inches at the wdest down to 2 inches at the narrow end and 3inches long
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Re: My First Dive Vid - Neptune SB-1
« Reply #40 on: February 04, 2015, 06:51:23 PM »

Okay, so what's the cubic volume of the parts, about 50cm3?

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Re: My First Dive Vid - Neptune SB-1
« Reply #41 on: February 04, 2015, 06:56:21 PM »

Volume: 27.496101498997 cubic cm  (He uploaded STL file to that site for comparison) - im assuming thats 1 Plane
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Re: My First Dive Vid - Neptune SB-1
« Reply #42 on: February 04, 2015, 07:41:31 PM »

Okay, so the site I linked to gave 20cm3 at 6.99. Does the price go up exponentially for an extra few cm3?

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Re: My First Dive Vid - Neptune SB-1
« Reply #43 on: February 04, 2015, 08:59:02 PM »

Ive no idea how it works, the STL file is on the FPV forum in this thread if you want to try it and get the quote (Hydroplane with Fillet) ...

http://fpv-forum.com/index.php?topic=4340.15

BigMouse designed it, MrBen printed it for me, BM states 2hr print but it took nearly 7 hrs in reality (each)
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Re: My First Dive Vid - Neptune SB-1
« Reply #44 on: February 04, 2015, 09:03:59 PM »

I cant upload the STL as its too big but its here :


http://fpv-forum.com/index.php?topic=4340.msg29924#msg29924


You can upload that to the site to get a quote.


They take over 3 hours each (7 hours in total) and if goes wrong during the print its a start from scratch.


ABS is more resilient than PLA if exposed to the elements (sunlight/water) its also harder to print correctly


If you have a friend with a 3d printer you may get it cheaper or as a favour  :-))




edit : just seen Cobs replied just before me, print time depends on many things including layer thickness and speed in the settings.
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Re: My First Dive Vid - Neptune SB-1
« Reply #45 on: February 04, 2015, 09:05:57 PM »

Oops my bad, i thought 7hrs each :)

Nice one Ben  :-))
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Re: My First Dive Vid - Neptune SB-1
« Reply #46 on: February 05, 2015, 09:16:22 AM »

Hi Cobs,

Very interesting planes - they look good and - compared with other methods of making them a great reduction in time and trouble.

Referring back to suitable dive site for subs, I think that you have been given some rather gloomy advice.

Plenty of nice, clear rivers with big deep  pools, where you are. In summer, with snorkel 'cover' in particular you will be fine. You may even get a picture of a passing salmon!

I would invite you down to the Barrow in Furness MBC pond (Featured in Marine Modelling International this month, no less!) sadly we mostly have nil visibility. Come down to our Sub Day though in September to see a fair number of subs in action.

Thanks for the videos and you ARE very lucky to have access to that pool for winter use. Keep well in with them.

David F
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Re: My First Dive Vid - Neptune SB-1
« Reply #47 on: February 05, 2015, 11:16:09 AM »

Hi Davy,

I know theres a few areas in rivers i can use it, now ive had it at the pool and seen its speed etc im a little more wiser what it can do, theres a couple of waterfalls here i think i could get near the base of too, they seem to have big pooled areas, im guessing the waters a bit calmer below the surface.

Whats going on with the visibility in your pond? Can it be made clearer?

The private pool - i just rang them and asked if i could take my RC sub, he said its fine as long as i dont damage tiles with it, as easy as that eh, i never thought peeps would be struggling to get their subs out over winter, i guess i am lucky then :)

Rob
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Re: My First Dive Vid - Neptune SB-1
« Reply #48 on: February 06, 2015, 09:29:21 AM »

Hi Cobs,

It's just a large pond in the park in Barrow so like most ponds it gets too much "nutrient" and so generates a lot of pond life.

It's not generally a problem for model subs, its just that you have a need for water clarity for underwater photography.

We sail all year round and most ponds have much less weed in winter as well. (Weed IS a problem for model subs.)

You are very lucky with your private swimming pool. There aren't  many private pools in the UK and municipal pools are hedged around with all sorts of  access restrictions, opening hours etc.

Best of luck with the videos in local rivers and I look forward to seeing some salmon shots! I remember diving at the Devils Bridge, Kirkby Lonsdale back in the 70's to see the salmon run. Most impressive - underwater!

David
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Re: My First Dive Vid - Neptune SB-1
« Reply #49 on: February 06, 2015, 06:14:56 PM »

Access to pools just requires...



Plus a bit of commitment and cooperation from those interested in participating.

Personally I've always found sailing subs in conventional boating ponds uninspiring, akin to flying an aeroplanes with cloud cover at a foot or two where you can only see the undercarriage.

Somehow don't think model flying would have caught on if that was the case.
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