DIY LED Heat Sink




About: I have an associates degree in electronics engineering, But Im going to go for my Bach, and then my Masters. Currently thinking of going for a Mech. Engineering Degree too.

I made this heat sink on a Drill press with a dremel, some files and sandpaper. It is cut down from 1/2 inch diameter aluminum rod that is one inch long. The "fins" arent perfect as the dremel kept slipping when I was using a cutting wheel to cut the slots. The LED you see is Faux Mounted. My Original Idea has the Aluminum rod a bit bigger than 1/2 inch, but I dont have a lathe so you gotta work with what ya got. This LED actually doesn't produce much Heat, Its about 1W and produces around 100 Lumens (or about 78 Lumens per watt)

Im Sure Work quite well under these conditions.

Improvements/Suggestions are welcome :)

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Be the First to Share


    • CNC Contest

      CNC Contest
    • Make it Move

      Make it Move
    • Teacher Contest

      Teacher Contest

    4 Discussions


    6 months ago

    aluminum bolt, aluminum washers and small rubber spacers and aluminum nut. Take the bolt, add a washer, then rubber spacer, then washer etc etc until the bolt is almost full, add nut,


    Reply 7 years ago on Introduction

    Hmm But then How would you cut perfect Circles From Sheet metal, and how would they be thermally attached. I think somewhere out there exists a metal Punch that punches out perfect metal circles


    Reply 3 years ago

    You can actually do that pretty easily with a "hole saw" (this is a kind of drill bit)