Instructables
In this Instructable I would like to describe my version of the case for the memorial American Flag used to honor military veterans at their funerals.  I wanted to simplify the woodwork and so came up with this version which only uses four 45 degree cuts.  Even these cuts don't need to be exactly perfect, though you should try to make them as close to 45 degrees as possible.  Note that the first picture is of a flag case I previously made with a darker stain.
 
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Step 1: Materials & Tools

These are the materials you will use:
  • ¾ inch oak plank (at least 67 inches long) and at least 4 3/8 inches wide
  • Round wood plug
  • Square glass cut on the diagonal (to yield two isosceles triangles)
  • 1 inch wood screws (2)
  • 1 ½ inch wood screw (1)
  • Masonite
  • ½ inch wood screws (6)
  • Stain of choice
  • Polyurethane or finish of choice
  • Sandpaper
  • Wood glue
  • Brass plaque with adhesive backing
These are the tools you will use:
  • Table saw with ability to tilt blade 45 degrees
  • Tape measure
  • Phillips head driver
  • Drill
  • 1/16 inch bit for pilot holes
  • Drill bit for wood plug
  • Sabersaw or jigsaw
  • 90 degree clamp (optional but it really helps)
  • Paint brushes

Step 2: Get the glass cut

Picture of Get the glass cut
You begin by getting a square piece of glass.  The length of the glass in my case is 18 inches.  There is a 1/4 inch deep slot cut into all three piece of wood.  The glass is cut so that 1/4 inch protrudes from the two upright sections and this allows you to attach the base and have it set.  Go to a good hardware store that cuts glass.  Get single-width glass and ask them to cut two isosceles triangles. 
Grunambulax (author) 12 months ago
Danieljay. Brilliant idea. You will have to adjust the width I use foam to fill the space in. I'd live to see that. You'd also want to not glue the bottom so you can access the flag. Also you'd reinforce the bottom joint more. I rely on the backing as a stabilizer.
Grunambulax (author) 12 months ago
Articpenguin. Good point. In fact all the cuts are 45 degrees but yes at the top it combines to 90
arcticpenguin12 months ago
I agree it is a nice display case, as well a great instructable.
The title says "only 45' angles", where it is actually "one 90' and 2x 45' angles". Maybe just edit the word 'only' out. To have all angles the same they would have to be 180/3= 60' angles.
I'll have to see if this would work with our flag here in Canada.
danieljlay12 months ago
Very nice work. And thank you for the hand-drawn diagrams. They really help.

Is there any reason I shouldn't use the extra piece of glass to make the flag visible from either side of the case?
jjochimsen12 months ago
hello i from Denmark. really enjoy the way your have made it. beautiful work. all the way from Denmark, Jan Jochimsen.
Grunambulax (author)  jjochimsen12 months ago
Jan - Thank you so much for your compliment. This is my first-ever compliment from Europe!
Excellent work
Grunambulax (author)  WhatWasIthinking12 months ago
Thanks!
Grunambulax (author) 12 months ago
Phil thanks for your thoughtful and encouraging comments. I agree on all fronts. The back is only screwed on and not glued for the reasons of access you note.

I consider it an honor to make these for my family. And as someone that never was called upon to serve I feel it is a patriotic obligation.
Phil B12 months ago
A flag case you make is so much nicer than some of the cheap things available in craft stores and elsewhere, and so much less expensive than some of the solid wood flag cases available commercially. I am seeing more flag cases made with 45 degree angles, like you did. Those 22.5 degree angles are difficult. I would like to make jigs that hold the pieces at just the right angle and slide against a table saw fence, but I have not done it, yet.

When making a flag case there are a number of decisions to be made and those govern how the case will be made. I think a flag case should be capable of being opened, in case the flag needs to be repositioned or removed, etc. If the back can be glued to the sides of the flag case, there is more rigidity; but, then the bottom must be made so it can be removed.

As WW II and Korean War veterans die, or even Viet Nam veterans, there will be more and more people who need a flag case. Thank you for publishing how you made yours.