Here's a simple, small, cheap, yet effective tool to SAND and DIFFUSE your LEDs!
This one can actually be used for many other purposes other than sanding...
While it would have been nice to purchase a standard sander off the shelf, the issue of price as well as size proved prohibitive (as I needed it to sand just a few LEDs for my other project!)
I've added the pics of sanded and un-sanded LEDs for comparison...
I used LEDs with a wide viewing angle (120 degrees).
Step 1: What Do You Need?
Basically, You'll need a small DC motor (size really depends upon how big and powerful you want it to be!).
Also needed is a base to mount the motor over it and an extending shaft and some sort of a coupling mechanism to couple the the motor's shaft and the extending shaft. A 5g pack of Sugru should also come in handy.. Also needed would be a power supply (I used a switch mode adaptor) And off course you'll need some sand papers to diffuse the LEDs...
(Things Bold and Underlined are necessary! )
In case you happen to have a DIY Mechanix (meccino) set as I did, you'll need the following:
Step 2: Assemble it all!
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Though the pics make it more or less clear, go on to:
To make the LED holder, I used Sugru!
I placed a small amount of sugru on one end of the shaft, then pierced it with the LEDs, exactly the way I wanted the LEDs to be... then just allowed sugru to set and done!!!
Now, just put an LED in its place, switch on the power and sand the LED....
Step 3: Tips & Safety/Warnings
Step 4: Other Relevant Info
I've used this thing for diffusing 45 LEDs and it worked pretty well.. Also, I didn't buy a single thing... just found everything lying around.. so, the cost involved was zero for me..
In case you were previously hand sanding the LEDs, and didn't use any specialised tool, this one will surely make the job much easier and it's pretty simple and fast to assemble it and then disassemble it when done!
Also, if batteries are used to power it, it becomes portable too!
Thanks For Taking Out Time To Read This Instructable!... :D
Reviews And Suggestions In Form Of Comments Are Welcomed!!!.... :D
And please ask if you have any questions! :)