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BPACH
01-15-2014, 01:24 PM
When you use LED edge lighting, are you grooving the edge of the plexi? Do you polish the edge? I am looking for the best light transmission I can get and if someone has already did the experiments to figure out the best way, I would like to hear your results.

joe
01-15-2014, 06:03 PM
Brian,

You might search on the SB Forum on the method I used to make this set of letters.

Bob Eustace
01-15-2014, 08:04 PM
Brian its really super easy to edge light. Just flame polish the edge using Map Gas. Don't be frightened by the 3,600F temperature warning on the bottle. The trick is to keep moving. Sawn edges come up great. Lots of demos on U-Tube.

CNYDWW
01-16-2014, 04:55 AM
Yes, Polish the edge that receives the LED.

scottp55
01-16-2014, 05:43 AM
Randy, any more info about that pic? Has anybody ever laminated and carved old cd's and carved and lit?

joe
01-16-2014, 06:14 AM
Naw, I'm telling everyone the idea of flaming, or torching the edge of plex isn't right. The way it's done by ALL Plexiglas manufacturers I've visited is by buffing.

You start out with 240p going down to 600p. From there it's a quick buff with your soft rotary pad.

I'd like to see everyone to pull out a torch and ruin some plex in order to find out how it doesn't work. That's a Tin Horn trick used on newbees.

curtiss
01-16-2014, 01:46 PM
I guess I will agree with the fellow with 2,252 posts...

CNYDWW
01-16-2014, 07:53 PM
[QUOTE=scottp55;158406]Randy, any more info about that pic? Has anybody ever laminated and carved old cd's and carved and lit?[/QUOTE

The sign was 4ft x 12 ft approx 1" thick polycast acrylic internally lit by LED strips. There was a 1/8" thick maple veneer applied with black silicone as an adhesive. There's a special treatment we used when i worked there to "stabilize" the veneer and i am still bound to keep my mouth shut about it, Heh.

CNYDWW
01-16-2014, 08:00 PM
More acrylic and LED work i've been doing at my current place of employment.

scottp55
01-16-2014, 08:03 PM
Thanks Randy, the visual effect was throwing me.

scottp55
01-16-2014, 08:06 PM
I like the "Caltrop from Heck" one:)