Sign & Digital Graphics

July '16

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66 • July 2016 • S I G N & D I G I T A L G R A P H I C S ARCHITECTURAL AND ENVIRONMENTAL The key, of course, is the slotted square-tubing legs. The slots on this sign were cut on a CNC machine but could just as easily be cut with a table saw or router. The slot is approximately 1/32" wider than the thickness of the face material (in this case we used 3/16" aluminum sheet for the faces), and the easiest way to get everything exactly right is to make the legs an inch or two taller than needed and slot them an inch or two lon- ger than needed, also. After temporarily tting the faces in place, simply mark the legs to the perfect length, creat- ing a precision slot. Of course, what holds the faces in place in the grooved legs are two "plugs" or ttings at each end of the faces, one near the top and one near the bottom, which can be bolted or welded into place. In this case the alumi- num plugs t into notches cut into the faces and welded in. If welding aluminum is not practical, these ttings can be made from short pieces of aluminum angle and secured with small machine bolts or rivets, very simple and just as effective. These plugs are welded into a notch in the sign faces, but it could be done using just a piece of angle bolted in with small machine bolts. The faces slide easily into the slots that are slightly wider than the thickness of the faces, in this case 3/16" thick powder coated aluminum. Small architectural signs like this one, with plate metal faces, can be built with almost no exposed hardware. The posts are grooved and plugs that fit the inside dimensions of the legs hold the sign together securely. The post caps become the only retain- ers, and they are secured with only two small rivets.

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