MT-50 Multitouch Table DIY Building Instructions–Version 1.2 - 4/5/11 - Page 15
Applying Infrared Light Strips
There are three rows of high-intensity infrared LEDs in the table on the
lighting rig. Each row is wired independently of the others, so if one
connection or strip fails, the others will still work. With less infrared
illumination, the table will be impaired but will still function.
The LED strips that we use come from Environmental Lights. With the
lighting setup we show in the diagrams about 2
½
rolls ended up being
used, so you will need to purchase 3 rolls. There are many different types
of IR LED strips, but we have found that the High Brightness with 5050
LEDS work the best for this application. You can find these strips here:
http://www.environmentallights.com/products/13104/irrf850-5050-60-reel
.
These LEDs come in rolls and are backed with an adhesive. To install the
LEDs, you’ll first want to measure the LEDs on the aluminum lighting rig.
The strips need to be slightly staggered to ensure enough room for the
connections.
The lengths of the strips do not have to be exact. If you look at the
drawing, you can see how we applied them to the aluminum. When you
make a cut on the strips, make sure you do it on the designated cut line or
you could damage the circuit.
Once you’ve cut a strip, check to make sure that it is aligned correctly
before adhering it to the rig. The edges of the strips on the outsides of the
struts should align with the edge of the strut, and middle strips should be
centered on the strut. When applying the strips after you’ve cut them,
make sure that the polarity matches up with the other strips to make
Summary of Contents for MT-50
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