Quote Originally Posted by Helix View Post
Hello a development kit sounds like a lot of fun,one question why LED it doesn't give off much heat, it would have a coolness factor though
If the powder absorbs in the IR range, then an IR LED will heat the powder without heating the surrounding air (much). So it won't feel like the LED's are hot, but they'll still heat the powder. It's a lot like those IR heating lamps that you see in some stores.