A heat gun reflector is a small metal piece that fits over the end of a heat gun. It can be very useful when using heat shrink tubing because it catches a lot of the hot air that would blow past or around the heat shrink and reflects to the opposite side of the tube. It can also serve as a shield to keep the heat from blowing at whatever is on your workbench.
My heat gun is supposed to put out 630º F on low and 1000º F on high, but most of this is wasted as it blows past the object I am trying to heat. With the reflector in place, I can shrink the heat tubing faster on the low setting then I could without it on the high setting, and I am saving energy!
I have seen these things sell anywhere from $5.00 to $50.00 depending on the quality and the store, but it is really just a piece of metal bent to fit the nozzle of a heat gun and can be easily made.
My design can be fit for any gun nozzle, and has an adjustable depth to accommodate various sized objects under the reflector.
Step 1: Tools and Materials
Piece of Sheet Metal - I used some scrap aluminum (12" x 1.5")
2 x Small Bolt, nut, & washer - I used 1 x 3/8" #6-40 Machine Screw and 1 x 1/2" #4-40 Machine Screw
Heat Gun - Why would you do this if don't have one?
Drill with various sized drill bits
Needle Nose Pliers
Measuring Tape or Ruler
Metal Cutter - Tin Snips, Dremel Tool, Strong Scissors, etc.