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Due to high RPM of drilling machine,sometimes drill bit will be damaged. To avoid this problem I made this speed controller. We can use this for any type of AC motor's, saw's, fan etc... and also as light intensity controller.

Step 1: Parts Needed

Step 2: Assembling

  • Drill two holes in the gang box. One for AC wire and another for dimmer controller.
  • Insert the dimmer in one of the hole and fix it.
  • Fix the AC socket.

Step 3: Connections

Wire according to the picture above

Step 4: Finally

Make a Label and attach it.. It's finished.

<p>It 's a good idea for angle grinding machine.</p>
<p>omg... yet another buy from shop, read manual, install as per instructions.... instructable. Did you re-type it all by your little self? or did you just cut and paste the manual that came with it? </p>
I bought it from china... No manual is provided with it.
<p>It did not work.</p>
<p>I like the idea, but I would use this sparingly. Running an electric motor at low voltage can damage the motor. The motor will run hot and wear out quicker. </p><p><a href="http://ecmweb.com/content/how-save-your-motors-during-brownout" rel="nofollow">http://ecmweb.com/content/how-save-your-motors-dur...</a></p><p>Dremel used to offer a variable speed controller box you could plug your Dremel (or other tools) into. It kept the voltage constant at all speeds so your tools were safe. I believe it modified the frequency instead of the voltage. There's probably something similar out there that would do the job without risking your tools.</p>
I like your work.
<p>Thank you</p>
<p>These are indeed very handy to have. I would only make one suggestion though; to add a fuse for circuit protection, this controller may be used in several different applications so a safety device would make sense.</p>
<p>Thank you for your suggestion</p>
Very cool!
<p>Thank you</p>
<p>With controller like this it would be pretty easy to make a drill lathe.</p>
<p>Yes. Thank you for your comment</p>

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