Step 17: Materials for Casting the LED

--48 fluid ounces of clear resin (If you go to Michaels, this is one big and one small container)
--about 5.6 ml of catalast (or 120 drops, I measured measured how many ml were in 10 drops and I went from there.)
--mixing bucket
--drill and a paddle or just a wooden stirrer (drill is so much easier and faster and safer)
--a way of holding the mold and the LED module
Looks really cool! I might make one soon
<p>great work =)</p>
NEVER I MEAN NEVER WEAR GLOVES ON A LATHE!!!!! <br>If the glove got caught in the piece your turning it would snap your wrist and bring your whole arm into the lathe
try make a 8x8x8 LED cube out of it LOL :-P
Shouldn't one &quot;leg&quot; be smaller than the other?
ooh, i like this.<br>id do this except with a 0603 style LED just for kicks.
make a giant ir tv remote!!
it's so big
this looks wrong btw
you should have a black comfoter and a silver and black alternating bedskirt and it would look like a processor chip
holy crap... plum creek's the tree farm above my property!
Love it! <br>Simple suggestion: What about making the LED leads/supports using square tube stock instead of the round tubes?
Nice radial arm saw. Is that in your house? also i'm going to assume you didn't have a fume hood in your house as well. But all in all, a very cool project. Just out of curiosity, how heavy is the damn thing?
That's wonderful! :)
ill buy one, how much?
Next up -- Jumbo sized incandescent bulbs!
Sometimes I feel like I have seen just about every project on this site, but every once and a while I still run into something new from the archives and think "Wow! That is awesome!" This is one of those projects. Nice job. Really digging this.
Could you add a potentiometer or rheostat to change the brightness easier?
OMG I knew optimus prime eyes worked with led and here is the proof hahaha <br>awsome proyect
How come I've never seen this before- this is AWESOME!
it;s great! ))
we should have a giant SMD LED. and a giant arduino.
which end is +
The longer one.
I love the rating this has got.
A bright idea!
ill make a much simpler instructable simular to tis soon
This is so cool in a geek way i will build one as well but with some differences but thank you for the idea keep up the great work.
Can't I use casting wax to make the the dye instead of wood?<br />
&nbsp;instead of spending so much time and money on the the wooden mold couldn't u just put the resin into a trashcan or a drinking glass, vase ,etc &nbsp;
Grreat!<br />
you are the real winner, its great.<br /> wyzzz from vienna<br />
I absolutely love it! Fantastic job!!!
Imagine a light board of these!
you could make it detachable by putting 2 giant breadboard-style holes in the base
What about grinding off the lip on one side for the cathode?
That is pretty impressive. I think I would try sand blasting it to make it evenly mat. Or you could do like they use in industrial plastic manufacturing and dip the thing into acetone. (providing this plastic is sensitive to it) it will make it shiny. ( this is what they use for screwdriver handles at Stanley) Anyway, This is really cool Idea! Congrats...
What did you use to fill it? What material?
Another way to find center, and easier than using the triangle method, is to take a ruler that goes through a 90 degree angle, place the cylinder (of big LED) into the angle and draw a line. Rotate the cylinder, draw another line. The intersection is the center.
So, what you are saying is, "If you have a neat tool designed to find centres, use that, as it is easier"? It's only easier if you have the specialist tool. Otherwise a regular ruler is much, much easier.
This is what I'm talking about: <a rel="nofollow" href="http://www.rockler.com/gallery.cfm?offerings_id=18997&amp;r=2">http://www.rockler.com/gallery.cfm?offerings_id=18997&amp;r=2</a><br/>
This is sooooo cool. i think i will make an even bigger one; say about 1meter across that would be huge.
??? that would weigh 1000 times as much as guyfrom7up's here...
And where would you put it? You would need about 500W inside it too.
Please can I use this idea as the base for a DT project?
sure, knock yourself out. What's DT?
Thanks! Its a great instructable. DT is Design and Technology by the way
Bet you are glad he didn't say "Destruction and Terrorism", eh? Excellent project. I'd buy one of these.
guys, about the casting part... isnt it just a sphere --> cylinder --> disc shape? just get a ball, a roll of cardboad paper that has a slightly larger diameter, and something flat and round with moderately larger diameter, and use them as the 'bones' for the 'sculpture' of an LED

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