OK - halloween 2014 is coming up, and a lot of you readers will want to scale the shield for someone who is half-sized or less. Here are some tips:

1. The basic build on this blog is a 28" diameter shield, where the red/white rings are 3" wide and the center has a 10" diameter. So the full diameter is roughly 9+10+9 = 28". This ratio is the basic ratio of the shield to keep the blue part the right size.

2. So for example, if you have a 4' Cap fan at home who needs a shield, Cap is 6' 2". Your Cap Fan is roughly 65% as tall as Cap, so her shield should be 65% the size of Cap's shield. That's a shield roughly 18" in diameter, a center circle with a 6.5" diameter, leaving the rings to be about 1.75" wide each. 5.25+6.5+5.25 = 18". The rest is travelling music.

3. As you build the rings, you can be lazy about the math and simply do it this way: draw the center ring with a diameter that is 0.25" bigger than the final diameter; draw the inner red ring with a flat diameter +1" than its final flexed diameter; draw the white ring at +1.5"; draw the outer ring at +2".

4. You decide how much effort to put into finishing and cost for the paint as this is likely a one-time use item. But: remember that your little Cap Fan is worth your best effort.

After some poking around on the web and understanding the math a little better, I have developed a tool for scaling the measurements which should make all of your work really easy. Take a look at this:

Just input the height of your budding Captain, and the table does all the work for you.

1. The basic build on this blog is a 28" diameter shield, where the red/white rings are 3" wide and the center has a 10" diameter. So the full diameter is roughly 9+10+9 = 28". This ratio is the basic ratio of the shield to keep the blue part the right size.

2. So for example, if you have a 4' Cap fan at home who needs a shield, Cap is 6' 2". Your Cap Fan is roughly 65% as tall as Cap, so her shield should be 65% the size of Cap's shield. That's a shield roughly 18" in diameter, a center circle with a 6.5" diameter, leaving the rings to be about 1.75" wide each. 5.25+6.5+5.25 = 18". The rest is travelling music.

3. As you build the rings, you can be lazy about the math and simply do it this way: draw the center ring with a diameter that is 0.25" bigger than the final diameter; draw the inner red ring with a flat diameter +1" than its final flexed diameter; draw the white ring at +1.5"; draw the outer ring at +2".

4. You decide how much effort to put into finishing and cost for the paint as this is likely a one-time use item. But: remember that your little Cap Fan is worth your best effort.

**:**__UPDATED__After some poking around on the web and understanding the math a little better, I have developed a tool for scaling the measurements which should make all of your work really easy. Take a look at this:

Just input the height of your budding Captain, and the table does all the work for you.