Search found 138 matches

by Mr. Engineer
Tue May 16, 2017 9:09 pm
Forum: Important Site News
Topic: Forum Upgrade Coming
Replies: 107
Views: 10284

Re: Forum Upgrade Coming

Wow! Thanks for all the hard works and nail-biting work!
by Mr. Engineer
Sat Apr 01, 2017 4:12 am
Forum: Lighting & Electronics
Topic: DPDT switching- two power supplies
Replies: 5
Views: 728

D'oh! Why didn't think of that!

And I went o all the trouble of getting a relay which automatically connects to the battery once the wall adaptor plug is removed.
by Mr. Engineer
Sun Mar 12, 2017 10:17 am
Forum: Lighting & Electronics
Topic: How to light up a sphere?
Replies: 9
Views: 1198

A friend has shown me the same model years ago but I just cannot remember the size so, you'll need to take my 2 cents with a pinch of salt... Since the tennis bal... er, sphere is held by four holders, you have some choices but they're all must be shining to the opposite holders, but the front and b...
by Mr. Engineer
Mon Feb 27, 2017 8:07 pm
Forum: Lighting & Electronics
Topic: 0.25mm Fiber optic drill bits....
Replies: 7
Views: 1184

Sure is! The two holes took me a long time and I had to remind myself not to take any coffee before I start! :)

https://www.facebook.com/PisceanWorks/p ... permPage=1
by Mr. Engineer
Mon Feb 27, 2017 12:02 am
Forum: Lighting & Electronics
Topic: 0.25mm Fiber optic drill bits....
Replies: 7
Views: 1184

Yeah, I should have bought those like you mentioned. But they go through plastic easily. Oh well, once I get through all of them, I'll look for the ones Kylwell mentioned. Someone asked me to light up their Star Destroyer with 0.256mm FO. I am still contemplating. But not with these drill bits.... :D
by Mr. Engineer
Sun Feb 26, 2017 8:16 pm
Forum: Lighting & Electronics
Topic: 0.25mm Fiber optic drill bits....
Replies: 7
Views: 1184

D'oh. And I went and bought these, where they did not pack it properly and most of the 0.25mm (blue) bits snapped. Yeah, the foam was not pushed and lock, so when they closed the lid.... These bits do snap fast. https://www.facebook.com/PisceanWorks/photos/a.1177772888965539.1073742225.3745873892840...
by Mr. Engineer
Thu Feb 16, 2017 11:42 pm
Forum: Lighting & Electronics
Topic: Remote power for a removable module?
Replies: 5
Views: 980

Well, there was some from eBay but with 200mA current. I;m not sure if changing the coil's turn would affect the receiver's output...
by Mr. Engineer
Thu Feb 16, 2017 12:20 am
Forum: Finishing
Topic: Hairspray technique
Replies: 12
Views: 2213

I tried the hairspray/salt technique for the very first time last month and well, I think I more or less got some kind of results. Instead of using just salt and water, I sprayed the hairspray quite thick by accident. And in the later stage where I scraped off the salt, I got very nice pock-marks wh...
by Mr. Engineer
Wed Feb 15, 2017 10:20 pm
Forum: Lighting & Electronics
Topic: Remote power for a removable module?
Replies: 5
Views: 980

Hmm.... don't get me wrong here but from the description above, it sounded like the you're retrofitting a Diamond Select Enterprise-D. Which if this is true, perhaps you might want to explore it's existing 3x LR44 batteries in the saucer instead. Still, a quick look at eBay (for the fastest technolo...
by Mr. Engineer
Wed Feb 15, 2017 6:43 pm
Forum: Lighting & Electronics
Topic: Remote power for a removable module?
Replies: 5
Views: 980

IMHO, I have tried those induction charger things some time ago and the result was that you need to have the coils very near unlike those Kidslogic which, is a few cm away but then again, they use simple LEDs. But coming to you idea, since the saucer is connected to the Battle Bridge through magnets...
by Mr. Engineer
Tue Feb 14, 2017 11:54 pm
Forum: Lighting & Electronics
Topic: How to attach fiber optics to an LED?
Replies: 2
Views: 673

I want to know too!

Usually I line last 8mm of the fibre ends with white glue and then push it onto the hole.

Fibre optics now are usually plastic and so, hot-melt glues and heat-shrinks are a no-no.
by Mr. Engineer
Mon Feb 13, 2017 1:34 am
Forum: Lighting & Electronics
Topic: Power supply
Replies: 4
Views: 632

It's best to ask from whom you bought the lighting kit from.

Although it says 12 volts, they might be able to answer in terms of huch current is needed. Normal wall adaptors can be form 12volts 500mA to 12volts 1000mA. Powerful ones can start from 12 volts 3A (or 3000mA)
by Mr. Engineer
Sun Feb 12, 2017 11:30 pm
Forum: Lighting & Electronics
Topic: Quick question about Pragraphix LED tape
Replies: 8
Views: 1194

If I am not mistaken, these LED strips comes in 10mm to 12mm widths and the really thin ones (like a stick) would be about 2.5mm wide.
by Mr. Engineer
Thu Feb 09, 2017 9:45 pm
Forum: Lighting & Electronics
Topic: Quick question about Pragraphix LED tape
Replies: 8
Views: 1194

No problem, Greg. You'll only need more current when the strip is more than a few metres long. I've been playing with the 1/144 Milllenium Falcon two years ago and have almost completed designing the circuit board for it. But I did not have the chance to get the shops to prototype the board for me d...
by Mr. Engineer
Wed Feb 08, 2017 9:53 pm
Forum: Lighting & Electronics
Topic: Quick question about Pragraphix LED tape
Replies: 8
Views: 1194

The Paragrafix LED strip uses 12 volts, can be cut at every 2-inches and has current-limiting resistors built into it. Based on this fact, each LED cluster (of three LEDs) would be connected serially and has ONE resistor per cluster. You can then control the brightness by adjusting the input DC volt...
by Mr. Engineer
Sun Jan 22, 2017 6:06 pm
Forum: Lighting & Electronics
Topic: Light defusing?
Replies: 23
Views: 3562

I am thinking of those polythene stuff, which was used to wrap electronics goods. I got those 2mm thickness from a Daiso stores (in Malaysia) and they looked good. Better than drafting paper.

(I know you know this) Remember, to close the gaps between each hotspots until they form a continuous light.
by Mr. Engineer
Fri Jan 20, 2017 5:28 am
Forum: Lighting & Electronics
Topic: Possibly dumb question from a novice. Please help!
Replies: 11
Views: 1513

No problem, Rogue Leader and if possible, connect all LEDs in parallel where each one will have their own current limiting resistors.

You will find out very quickly what happens if you connect a red LED and a green LED in series and only using one resistor too.
by Mr. Engineer
Mon Jan 16, 2017 10:37 pm
Forum: Lighting & Electronics
Topic: Possibly dumb question from a novice. Please help!
Replies: 11
Views: 1513

Rule of thumb (for me) for any white LED is: Forward voltage: 3.2v to 3.5v (I am using 3.2v) Forward current: 20mA So, using those information, the closest resistor value is 150 Ohms, 1/4watt and in a parallel wiring setup. Different LED lens also play into the space required and its effective brigh...
by Mr. Engineer
Sat Aug 20, 2016 9:59 pm
Forum: Lighting & Electronics
Topic: Shouldn't 12v be enough for seven 3mm LEDs?
Replies: 31
Views: 5568

Always go parallel because if one LED burns, the rest are not affected. Only go serial if... well, just go parallel.

Because, when you seal up that model, Murphy's Law abounds and learning new swear words is not fun neither.
by Mr. Engineer
Fri Aug 19, 2016 11:22 pm
Forum: Lighting & Electronics
Topic: Shouldn't 12v be enough for seven 3mm LEDs?
Replies: 31
Views: 5568

Darn it. I keep forgetting there's no 'LIKE' button for your posts.
by Mr. Engineer
Wed Aug 17, 2016 8:59 pm
Forum: Lighting & Electronics
Topic: Shouldn't 12v be enough for seven 3mm LEDs?
Replies: 31
Views: 5568

What you described was a A23 battery. It has 12volts and supplies about 55mAh. One Blue LED uses 3.2v to 3.5v, and consumes 20mA. If you have 6 blue Leds, its already asking for 120mA which is more than the A23 can provide. A 9volt battery tester's circuit allows you to test a few LEDs and its desig...
by Mr. Engineer
Fri Aug 05, 2016 10:16 pm
Forum: Lighting & Electronics
Topic: With what do you secure LED wires to your model?
Replies: 23
Views: 3919

The overseas place where I started work right now, does not even have ACE Hardware. So, yeah, luckily I brought my smaller hot-melts which uses black glue sticks (doubles a lightblock) like there's no tomorrow....
by Mr. Engineer
Mon Jul 04, 2016 10:12 pm
Forum: Lighting & Electronics
Topic: Resistors: before or after LEDs in the sequence?
Replies: 7
Views: 1996

My original idea was to record a few seconds of the of the people shouting 'Wasshoi!" but it did not work out since the videos from YouTube was not what I expected. I was also thinking of how to move the drummer's arms with some servo too. But painting the body was as far as I got at that time since...
by Mr. Engineer
Fri Jul 01, 2016 2:23 am
Forum: Lighting & Electronics
Topic: Resistors: before or after LEDs in the sequence?
Replies: 7
Views: 1996

Hey, Wow! I had the same series but its more on the guy with the drums. However, mine was done halfway because the model was very prone to scratches on the corners. But yea, using red and orange 0805 SMDs for the lights, 0603 or 0805 for the side indicators plys 3mm warm white LEDs for the front hea...
by Mr. Engineer
Thu Jun 30, 2016 11:33 pm
Forum: Lighting & Electronics
Topic: Resistors: before or after LEDs in the sequence?
Replies: 7
Views: 1996

Ditto.
But I like to put them on the Positive side.
by Mr. Engineer
Fri Oct 16, 2015 1:07 am
Forum: Lighting & Electronics
Topic: LEDs flashing in time to music / modifying a "car music
Replies: 3
Views: 1764

Not sure about this but on the second picture, the 'LEDs' looks more like Electroluminescents, which runs on AC and not DC There are other sound to light circuits, such as the infamous LM3916 UV meter IC. I ma sure there is even a kit for that as well. Here is a quick Google Search: https://www.goog...
by Mr. Engineer
Sun Sep 27, 2015 9:25 am
Forum: Lighting & Electronics
Topic: AMT ProShop X-Wing
Replies: 7
Views: 3405

Sorry. Double post, thanks to unstable Internet
by Mr. Engineer
Sun Sep 27, 2015 9:24 am
Forum: Lighting & Electronics
Topic: AMT ProShop X-Wing
Replies: 7
Views: 3405

I was presented with a Pro-Shop X-Wing a year ago to repair on its electronics but the Client had a change of mind due to my overworked schedule. Since I had not seen the bulbs personally, I just hope the following observations might help you: 1. Bulbs have a 270° spread of light compared to a LED's...
by Mr. Engineer
Mon Aug 18, 2014 6:43 am
Forum: Lighting & Electronics
Topic: Need advice on a simple LED lite setup
Replies: 3
Views: 2858

I agree with Joseph Osborn on this. Do look at Starship Modeler's Store section on lighting and you'll see a few lighting solutions for your Viper. I have encountered a few who used something similar to those pucks and in the end, the result was not as convincing. The Moebius TOS Viper is a wonderfu...
by Mr. Engineer
Tue May 27, 2014 11:31 pm
Forum: Lighting & Electronics
Topic: 10mm LEDs!
Replies: 3
Views: 2698

Yeah, they're been around for some time. AFAIK, here are the possible sizes for those round domes 1. 1.8/2mm 2. 3mm 3. 5mm 4. 8mm 5. 10mm However, where brightness is concerned, I think its the same brightness as the 5mm version but in some cases, the 3mm LEDs are brighter. I might be biased because...