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Flashing Light Unit

Started by 12thdoctor, May 15, 2009, 09:49 pm

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atomicgraph

Jun 30, 2009, 06:22 pm #15 Last Edit: Feb 04, 2010, 08:19 pm by scarfwearer
thanks for those  links :)

Theta Sigma

Jul 01, 2009, 02:30 am #16 Last Edit: Feb 04, 2010, 08:19 pm by scarfwearer
Quote from: 12thdoctor on May 15, 2009, 09:49 pmHas anyone come across a way to make the tardis lamp blink on and off with one flick of a switch?

I'd be running on 120V.


I have not come up with anything to flash a 120V lamp, but here's what I have come up with for flashing 12V high flux LED's.  You could always use a 12V power supply to run this from 120VAC.  It pulls about 2 amps at 12VDC.  I've not finalized the circuit design yet, but I hope to soon enough.  At that time, I plan to share the electronic schematic and parts sources with everyone.

th_SANY0717.jpg
"I just put 1.795372 & 2.204628 together." - 4th Doctor

12thdoctor

Jul 01, 2009, 03:22 am #17 Last Edit: Feb 04, 2010, 08:19 pm by scarfwearer
Yours is how I want mine to look, klippard

nikond80

Jul 01, 2009, 08:26 am #18 Last Edit: Feb 04, 2010, 08:20 pm by scarfwearer
Klippard,

That looks spot on to me.
Lovely job sir,

Jon

Theta Sigma

Jul 01, 2009, 07:37 pm #19 Last Edit: Feb 04, 2010, 08:20 pm by scarfwearer
Quote from: 12thdoctor on Jul 01, 2009, 03:22 amYours is how I want mine to look, klippard


All, you can call me Kevin.  I should have come up with a more creative username, but oh well. 

I actually found something last night on the web that should allow me to attach my circuit as a driver and create a fader-flasher that will control a 120VAC bulb.  I will order one, and see if it works, then post the link for all.  Please stand by.  I hope to get the circuit finalized this weekend!

Kevin
"I just put 1.795372 & 2.204628 together." - 4th Doctor

throgmorton

Aug 01, 2009, 02:54 pm #20 Last Edit: Feb 04, 2010, 08:20 pm by scarfwearer
Thanks for the links and info really appreciate it!

Chris E.

Theta Sigma

Aug 10, 2009, 05:57 am #21 Last Edit: Feb 04, 2010, 08:22 pm by scarfwearer
Finally put the finishing touches on the flasher unit.  I'll be posting schematics and plans this week as soon as I can get them drawn up.  Here's a video of it working in the broad daylight, and in the dark.  I'm not too impressed with the daylight shots, but the night shots look wonderful.  Comments?

th_Big_tardis_3.jpg


th_big_tardis_blue_night_0001.jpg
"I just put 1.795372 & 2.204628 together." - 4th Doctor

Dematerialiser

Aug 10, 2009, 12:08 pm #22 Last Edit: Feb 04, 2010, 08:22 pm by scarfwearer
Nice videos there Kevin! That light looks superb too!

Theta Sigma

Aug 23, 2009, 02:27 am #23 Last Edit: Feb 04, 2010, 08:22 pm by scarfwearer
At long last I have something to share to help you build your own flasher units like mine:

flasher_board_layout.gif

The bottom side of the board looks like this.  You can make 2 units from one board if you want.

rsboard2.jpg

If anyone is interested an a proper electronic schematic, I'll be happy to draw one up.  However,  I thought this type of plan would be easier to follow for those not experienced with electronics.

If anyone is interested in commissioning me to build them one, I'd be happy to do so for the cost of parts and shipping, plus a modest fee for my time.

I'm also going to be working on a unit that will use 12V halogen lamps instead of high power LED's, but that's down the road a ways.

Kevin

"I just put 1.795372 & 2.204628 together." - 4th Doctor

Theta Sigma

Aug 23, 2009, 03:16 am #24 Last Edit: Feb 04, 2010, 08:22 pm by scarfwearer
Here's a pic of the assembled flasher unit:

SANY0758.jpg
"I just put 1.795372 & 2.204628 together." - 4th Doctor

Scarfwearer

Aug 23, 2009, 12:02 pm #25 Last Edit: Feb 04, 2010, 08:23 pm by scarfwearer
Thanks for this, Kevin! Requests for this come up pretty often on the TARDIS boards.
One question, though: what do you use for a power supply? Radio Shack wall-warts normally only go up to about 1A, or do they have bigger ones?

Crispin

Theta Sigma

Aug 23, 2009, 03:12 pm #26 Last Edit: Feb 04, 2010, 08:23 pm by scarfwearer
Quote from: scarfwearer on Aug 23, 2009, 12:02 pmThanks for this, Kevin! Requests for this come up pretty often on the TARDIS boards.
One question, though: what do you use for a power supply? Radio Shack wall-warts normally only go up to about 1A, or do they have bigger ones?

Crispin


Crispin,

The intent of this design was to use as 12V car battery as a mobile power source, eliminating the need for power cords running out the back of your TARDIS.  If you wanted to use a line powered source, the power supply from an old (or new) computer would work well also, as most provide about 6 amps on the 12V line(s).  My videos were shot using a computer power supply actually. 

There are commercial power supplies that are available too, but I think the computer power supply is most likely the cheapest option.

Kevin

"I just put 1.795372 & 2.204628 together." - 4th Doctor

Theta Sigma

Aug 23, 2009, 03:21 pm #27 Last Edit: Feb 04, 2010, 08:23 pm by scarfwearer
All,

I neglected to mention that my videos of the flasher unit utilize a real glass Fresnel lens, which further focuses the light from the side-emitting Luxeon LED's.   The LED's are very bright, and will cause damage to your eyes if you stare directly at them at close range.  However, they will not appear as bright from a distance without the use of a real Fresnel lens.  When I say real, I mean lenses that actually have focusing properties, not the cheap plastic ones that you buy at your local DIY store. 

Just wanted to clarify this point to avoid disappointment from anyone who decides to build one of these units. 

Kevin
"I just put 1.795372 & 2.204628 together." - 4th Doctor

12thdoctor

Aug 24, 2009, 11:48 pm #28 Last Edit: Feb 04, 2010, 08:23 pm by scarfwearer
How well do think this would work on an nst build, which doesn't use a fresnel?

DarthMoose74

There are a variety of ways to do your lamp on top, blinking is easy but to get the right amount of fade on and off how do you do it?