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Reposted from LN. Hope somebody found it interesting, maybe even help me a little with this idea.
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As mentioned earlier on LN forum I preparing for cosplay. One of problems to solve are tanhì (bioluminescent dots). In human case real bioluminescent may be dangerous thus We need to find different way. This topic is intended to collect all possible solutions and chose best one. Basically only there are four main ways to have tanhì:
Reflective is the simplest solution, just grab white marker and paint. I'll chose that way when other fails. Glowing sounds best for me, but still searching for optimal solution, there are so many ideas to use...
"Lot of LEDs" is the solution I trying to use. Sadly no glowing dots over my face because I don't have any idea how to glue LEDs and hide wires. Maybe LED implants or fiber optics implant within next decade? On the other hand, white LED at 20mA will be noticeable even through layer of fabric under powerful street lamps. 1mA per LED sounds reasonable for darker environment like cinema, where I plan to perform my cosplay. With good battery and proper dimmer I may be the star of each event, spreading more light than regular 15W incandescent bulb ![]() Do You have any other solutions? [/quote]
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#2
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Thanks Toliman, I forgot about radioactive light sources. As dangerous as real bioluminescent by glowing bacteria. TEA: I need space for store documents, phone, wallet and keys but don't have slaves to hold my items and follow me ![]() Sadly bag/backpack limits me to play only as avatar driver, not real Na'vi. But who really cares about that details. Alternatively I can hide batteries along the entire length of the tail, same way as Jane MacMillan add extra weight to plastic tube. ![]() BTW, Two new solutions found! 1. LEDs on fabric tape, by adafruit.
Spoiler:
- Expensive and not stretchy but at least flexible. Made of fabric plus two stainless steel wires. 20 LEDs per 1m, comes in 1.5m string. 2. LEDs already soldered to copper wire, by adafruit.
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- I may fold wire between each dot and sew individual dots to my costume. That extra amount of wire should give me enough elasticity. Wires and sewing may be visible through fabric but hope they don't show up.
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#3
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I have access to enameled (magnet) wire, few SMD LEDs in 2835 size (about 3x3mm) and soldering gun. Hand soldering for single LED isn't a problem, most of LEDs survive my soldering skills. Just overall number of LEDs to solder looks ridiculously high. My estimations:
What do You think about that size and total number of glowing dots? I plan to connect all 60 LEDs in line parallel without extra resistors. Not very clever but should do the job for low current. Each line should have current source set between 15mA (0.2mA/LED, night mode) and 300mA (5mA/LED, day mode). IMHO single 10 ohm resistor per each line and one or two variable voltage source (3-6V step-down dc/dc converter) for whole costume should do the job. Add 12V lithium pack and looks like complete solution. Now I need to purchase zentai suit and start testing.
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#4
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__________________________________________________ ____________ __________________________________________________ ____________ Thanks for keeping eye on my project. You motivate me to finish this. Quote:
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Answering to Toliman's question: I don't like the idea of solder that much LEDs but looks like I have to use at least 1000 LED for full blue costume. Maybe I should cosplay as Avatar driver? No LEDs on torso, just arms and legs :-\ Quote:
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I can purchase [desc=0.113mm diameter, 0.01mm^2 cross section]AWG37[/desc] magnet wire at local store. That wire are designed to withstand only 155*C (easy to solder through enamel layer) and fold that wire few times to achieve durability. On the other hand I can purchase [desc=0.255mm diameter, 0.05mm^2 cross section]AWG30[/desc] single wires with stranded core but coated with silicone (sticky) or teflone (hard to remove before soldering). Future tests needed. But first I need to purchase zentai lycra suit. Poland stores offer me standard blue suit while Chinese for the same price can make custom fit one with few extra options like separate toes and detachable hand gloves. Waiting for replay from china, can they make tail for me. Also new found, LEDs under lycra: https://www.youtube.com/watch?v=LxMiDvhkTXs Overall effect looks great. Hope I can achieve similar effect. Ofc. I'll chose regular white LEDs, not the magic RGB, cost does matter. For 10$ I can purchase: 100 pcs Chinese WS2812 or 400 pcs white SMD 2835 from local store or 1000 pcs white SMD 2835 from china.
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