Optical Fiber Diameter for Seaview "Cadillac Fins"?

[carter]

I'm building the Moebius Seaview and lighting it. What is the proper diameter of optical fiber to use in the Seaview stern fins?


Thanks.

[junglelord]

Hi, I tried some fiber

Hi, I tried some fiber optics, but a 3mm LED is much nicer.

[carter]

Hi Junglelord:

I saw your post

Hi Junglelord:

I saw your post on another forum about the LED's available on e-bay. I've contacted him and after I make measurements will be getting a set. So anyway, the wires will fit in the fins I take it?

One thing I wonder about is the brightness. Won't the LED's direct appear too bright? Afterall, the 3mm LED's in the nose and under the bow fins are spotlights, while the lights in the fins are simply navigation lights?

Thanks.

[Guest]

You can dim LED's using

You can dim LED's using a cheap and simple forwards only ESC- the tiny type used for park flyers etc.

[raalst]

in the dry part of

in the dry part of your sub you could dim the led with a simple variable resistor in series (and in addition to any other resistors, to prevent burnout of the LED)

[bob the builder]

Another tip is to grind

Another tip is to grind off the tip of the LED with a dremel or file. The rounded tip helps to focus the light beam, and grinding it flat (or even better as an inverted cone) helps to disperse the light far more evenly. I use that trick on all my Nautilus builds so that the spotlights are more visible from a greater angle.

Just don't grind too far down...

[Guest]

in the dry part of

in the dry part of your sub you could dim the led with a simple variable resistor in series (and in addition to any other resistors, to prevent burnout of the LED)

That only works to a degree. With PWM you have the same amount of dimming control as with a filament lamp.

[junglelord]

Actually its 5mm in the

Actually its 5mm in the nose and under the bow. 3mm in the fins and tower.