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By Keith Brenton - images & text © 1999
The Problems
But there's a problem. Or two. Or more. Maybe you're not an electronic genius. Or maybe you don't have time to install complex circuits and wiring; or to drill, shape and fill window holes with just the right translucent medium to transmit just the right amount of light. Perhaps you just don't have the buckage to cover the grain-of-wheats, LEDs, lightsheet, wiring, circuits, batteries and transformers. Or possibly you just don't want to deal with the inevitable once your "magnum opus" model is finished: replacing or repairing lights and even LEDs that burn or short out. You might be dissatisfied with fiber optics, which produce only round windows; or frustrated with the prospect of hiding wires and batteries so that they're not visible within your model. And what can you do if the kit is solid resin or vinyl? The Solution
You've seen it before; it's the stuff on the back of trucks and school buses that reflects your headlamps at night. Safety tape is a self-adhesive plastic tape containing glass microbeads which reflect light back in the direction of its source. It's made by 3M (Minnesota Mining and Manufacturing) as a night vision safety product; generally available in white and/or red, sometimes yellow, orange or blue. You can find it pretty consistently in the automotive sections of discounters like Wal-Mart, K-Mart; at auto parts stores; and at safety product stores and fire/police suppliers, where you'll encounter a wider selection of colors and sizes for striping squad cars and trucks. The Advantages
It looks natural; the tape has a glossy, window-like appearance. It can be pieced to fit over 3-D objects such as domes or engine intakes and exhausts. The white reflective tape looks pearlescent silver; other colors carry the same irridescent quality. In most cases, safety tape can easily be tinted other colors with clear tint spray paints in successive thin layers and still maintain flexibility. It can also be tinted with thinned fluorescent (day-glo) enamels for supplemental lighting effects with black light. Just remember: the more tint you apply, the less light is reflected back! Models "illuminated" by safety tape are perfect for photography. The brightness of the interior illumination illusion can be controlled by moving the light source closer or farther away from the viewer or camera. If the light source is very close, only a small amount of light is needed to produce the effect, enabling dramatic lighting from other angles with very little or no overwash. Halogen lamps do the trick very well. A Couple of Disadvantages
And it does still take time and patience to cut and apply enough "windows" for, say, a model of Deep Space Nine or the Enterprise-D. Not as much time as drilling with an AMT/ERTL-supplied battery drill and shaping by hand with a #11 X-acto, but a significant amount of time. If you're only planning to photograph from one angle, you can cheat by just applying reflectives where they'll be seen. Deciding Whether To Use Safety Tape
You may find that since this method generally takes less time, it may help you meet a deadline-such as for a modeling or photography contest. (My Enterprise-D variant, equipped with blinking LEDs and safety tape windows, had to be built with tight budget and time constraints. It was made to introduce a videotape invitation to a Human Resources convention with a "Trek" theme. So I used oversized LED running lights to make sure they'd show up on 8mm videotape.) The safety tape illumination method is perfect for video, digital or film photography, where the position of light sources can be controlled and detail/accuracy is crucial.
If you're not into photography, the effect is just as spectacular when viewing your models across a room with a reading lamp behind your head-whether other room lights are on or off. Another consideration in using safety tape illumination is your learning curve. You can use safety tape illumination to produce a satisfying model while you're still in the stages of "feeling out" the idiosyncrasies of a kit you'll buy again and spend more time and money with electric/electronic illumination. And there's nothing like it for producing an outstanding solid resin or vinyl model. Suggestions Try safety tape illumination on an inexpensive model first; see if you like the results. Or assemble the model with sparing amounts of contact cement, so you can later disassemble it if you don't like the result, and illuminate with electrics/electronics. (You can usually remove contact cement with grey kneaded artist's eraser.) Let the safety tape be the last step in your model's construction, after painting, decals, final clearcoat, maybe even weathering. If you don't like the result, you can peel it off!
Have fun! You don't have to be totally committed to this method, so you can afford to make mistakes and go back to the way you used to do it! And if you do enjoy it, drop me a line. Cutlines: Enterprise-A, Enterprise-D, Excelsior, Cardassian Galor, Deep Space Nine, Defiant, TNG Klingon warship, Qu'onos Klingon ship from The Undiscovered Country, U.S.S. Orwell (an original movie-era conversion design with underslung engines and an oddly-shaped secondary hull above the saucer section, reminiscent of Reliant) |
This page originally appeared in Quantum's Science Fiction Modeling and is reprinted with the kind permission of QSFM.
Last updated on 3 June 1999.