RocketMan1092's 3D printed Tricopter headlight

2 layer board of 1.52x1.02 inches (38.51x25.81 mm).
Shared on April 12th, 2015 21:12.

Headlight unit for special version of 3D printed tricopter, uses CARLCO 20mm TIR optic in holder, that gives you lots of choices of beam pattern to suite your flying needs; from spot light “tight” beams of light to a wide diffused even “wall of light” and even an oval beam option optimized for fast forward flight [when orientated vertically].

JR style servo plug
Utilizes separate MCPCB for heat wicking from LED
Simple jumper to select power source (JP1)
Current selectable also via jumper (JP2), either 350 or 700mAh
Cree XM-L2 makes 110 or 350Lm (depending on current)

Can be controlled one of three ways

On anytime 5V is applied (JP1 closed)
Switched by enable signal (pulled up) from controller, separate 5v source can be constantly supplied (like from BEC), this removes the load from the FC / MCU pin used for remote control (JP1 open)
PWM’d for brightness control. This requires additional coding and a spare HW PWM pin (JP1 open)

Note tho 700mAh is VERY LOW power for an XM-L2 because there is no physical heatsink it’s highly advised to use a DIRECT THERMAL PATHWAY MCPCB such as a SinkPAD. On top of the DTP for heat a Copper MCPCB will provide a decent bit of mass to more effectively disperse heat into the air. A copper MCPCB should also be reflowed directly to the via matrix for both better heat transfer and a more secure mount for the LED / optic.

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