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View Full Version : How-To: Rotary Cord Extension



justin_murphy
03-16-2007, 01:38 PM
How-To:
Rotary or PC Cord Extension

Tools needed:

Rotary or PC
25 foot extension cord
3/8" Heat Shrink Tubing
(2)16-18AWG Crimp aka Butt Connectors
Crimpers
Wire Strippers
Heat Gun
(Hair Dryer will work but will take longer.)

The Process:
As I'm getting ready to really start learning my Chicago Tools rotary (awesome machine for 30.00!), I really didn't like the fact of a 5 foot cord. So, since it was raining today, off to Lowes I went to gather my supplies.

First, here's a look at the goods.
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures001.jpg

You want to cut off the male end of the rotary's cord and also cut off the female end of the extension cord. Then you want to expose about a 1/4 of an inch of the inside wiring of the white and black wires. Ignore the green wire on the extension cord.....this is for a ground and the rotary has a floating ground.
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures003.jpg

Next, just match up the colors and crimp away. Make sure you slide the heat shrink tubing over one of the cords first.
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures005.jpg

Slide the tubing over the crimped wires like this.
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures006.jpg

Break out the heat gun or hair dryer. Careful, this thing gets hot!
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures007.jpg

After heating (will not take long) the tubing constricts over the mended wires and crimps. This makes for a water tight seal too. The tension is also now exerted on the tubing and not the crimps if pulled upon.
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures008.jpg
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures009.jpg

All done! 30 feet of "non'cussin' if my cord come out" length!
http://i10.photobucket.com/albums/a127/justin30513/Rotary%20Cord%20Extension/Pictures010.jpg



Thanks to all!

justin30513

Russecu
03-16-2007, 01:49 PM
Thats Niiiice!! Were those items samples from Lowes? lol jk Great idea

HighEndDetail
03-16-2007, 01:50 PM
sweet

Whitethunder46
03-16-2007, 01:51 PM
Cool man!!! Good idea. I'm glad on I got the HD version of my PC though!

HighEndDetail
03-16-2007, 01:57 PM
Thats Niiiice!! Were those items samples from Lowes? lol jk Great idea

http://www.peachstateposse.com/forum/images/smiles/smilielol.gifhttp://www.peachstateposse.com/forum/images/smiles/smilielol.gif

Al-53
03-16-2007, 05:00 PM
Justin..a little hint...paint the connectors with non conductive silicone grease and then heat shrink them....safe way of doing it when used in wet conditions...also stops any corrosion ..I use to put in well pumps for artesian wells and when we did slices we that were going to be submerged or wet we used silicone on the butt connectors...saves from getting a zap also...

Nice right up also...

Al

BILL
03-16-2007, 05:49 PM
Wish i had seen this before buying a 25 ft extension cord:o

justin_murphy
03-16-2007, 07:01 PM
Wish i had seen this before buying a 25 ft extension cord:o

Well now you know what to do with that cord!

By the way, my PC has been modded like this for over 5 months now with no probs or shocks!

Nica
03-16-2007, 07:55 PM
Very nice, as always very nice write up and love the pictures.

really good idea and simple too.

Stittville Ed
03-16-2007, 07:56 PM
Justin, I'm looking for the UL Lable :)

If you stager the butt splices so the are not on top of each other you will get a longer but smaller in diameter splice, if you think that would help.

For the shrink tube if you go to a Electrical supply house get the good T&B shrink tube. It will have a sealer inside of it that will seal out the water.
I will look and see if I have any of it left over and get it to you if I do.

I think you should look into a GFI for your cord with all the water you are standing on time to time.

Of course all of this will all be in your book :D

Nuke33
03-16-2007, 08:29 PM
did you soder the cords toget her? they may pull apart over time and lose connect, it could cause you to burn out the moter

Ryan

BILL
03-17-2007, 07:43 AM
:)
did you soder the cords toget her? they may pull apart over time and lose connect, it could cause you to burn out the moter

Ryan



QUOTE:


After heating (will not take long) the tubing constricts over the mended wires and crimps. This makes for a water tight seal too. The tension is also now exerted on the tubing and not the crimps if pulled upon.



This is what he does in place of soder....;)

Nuke33
03-18-2007, 07:24 PM
Oh ok cool! I used some at my potato cannon once worked well