Ear Construction

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$2.79 unused paint can Cut and ready for sanding Primed and ready for paint

Supplies

Here is the list of the supplies that I used:

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Tools

Below is a list of a couple tools that I used;

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Procedure

As with everything else I have done, the thought of doing these intimidated me, until I actually started doing the work and then it all turned out to be pretty easy. I started out by going to the local Ace Hardware and bought an unused new paint can for $2.79, brought it home and traced the template for the ears that I got off of the club website. Next I used a pair of tin snips and carefully cut out the rough ears (you should use gloves here because the metal is very sharp). I cut four ear pieces because my plan was to double up on them for strength. I next used plummers goop to glue all the pieces together, waited about 2 hours and then went outside to my bench grinder. There I roughly ground them down to about 1/16th inch from the lines and then I moved to my bench sander to get them ground to the lines. After that I drilled four 1/8 th inch holes in a 2x4 block and cut up a coat hangar into 4 6 inch peices and put them into the 2x4. After giving the ears a quick sanding I used painters blue tape to attach the ears to the coat hangars. After giving them two coats of primer, with an hour in between to dry, I then painted 2 ears red and the other two yellow. Then about two hours later I put some blue tape over the finished sides to protect them from overspray, and then painted the back sides silver.

To make the holders for the ears I just cut a couple peices off the paint can in the shape that the plans call for, attached them with Plummers Goop, and then took some scrap wood and using my bench sander I made what looks like 2 bullet shaped peices about 3/4 inch in length 1/4inch thick. I then cut a small slit in the top of them, painted them just like the ears, drilled a small hole on the opposite side for a 1 inch peice of coat hangar, and then used the goop to glue them together.

The picture at the lower left is a shot of the parts (just a couple 1 1/4 in spheres and a couple small flower pots) I bought at a local craft store called Pat Cattan's. The next two pictures show the 15/32nd inch holes I had to drill for the motors. Picture number 5 shows how I used a drill press to make the tapered horizontal posts with a palm sander. Almost forgot, I used 3/16th inch automotive vaccuum hose to connect the motor's to the cut up coat hangar pieces, and also the same procedure to put coat hangar parts on the other end of the ear's.

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 2 motors $30
$4 worth of parts 15/32nd holes drilled Square hole holds motor from turning
  Finished Radar Section
Ready to be assembled Made these on my drill press Finished Ears front view

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