Introduction: Adding a Power Switch to a Hot Glue Gun

About: Car Fanatic, DIY Hacker But I'm Super Lazy so dont expect much out of me

I did this modification about 8 years ago and its still running strong. 
The Hot Glue Gun (hence forth being named HGG) that i owned had two settings "Hot" (would melt hot glue) and "Warm" (wouldn't melt hot glue) but the mean issue I had with this HGG is that if it was plugged in it was on. I found that the "Warm" position was useless, and I wanted to add on/off functionality as well as a power LED. I also wanted it to be done as simply as possible. 

Step 1: Materials and Tools Required

1.  0.33 uF 500 VAC rated cap 
2. 5mm blue LED (or different color, I used blue)
3. Hot Glue 
4. Assorted Heat Shrink 
5. Assorted Wire
6. Solder

1. Soldering Iron
2. Second Hot Glue Gun 
3. Drill
4. 5mm Drill Bit 
5. Heat Gun or Lighter 

Step 2: Circuit Bending

Picture 1 is the original circuit it shows the two different heating elements and SPDT switch.
Picture 2 is the modified circuit with an on off switch and LED

Note: The Capacitor being used must be over rated, I personally had a 1KV Mylar capacitor sitting around with the value of 0.33uF or 330nF in a AC setting this capacitor is being used more like a resistor, but for protection I also added a 10K Ohm resistor in series.

Second Note: The lifespan of the LED is being reduced significantly because its being turned off and on at 60 Hz  

Step 3: Case Modifications / Assembly

The case modifications on this project are very simple, find a safe spot and drill a 5mm hole. 
Assemble the second circuit from circuit bending step, make sure you use heat shrink.  Remember  this is AC Mains voltage, and can easily cause a fire or kill you. Now hot glue the circuit inside the case of the HGG, and reassemble the HGG. 

Step 4: It Works!!!

This is one of those Keep It Stupid Simple projects or KISS projects. 
I've had this glue one with these modifications going on for 8 years now and the LED still works so I don't think you'll run into any issues with it. 

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