Nema 17 Heatsink Clamp

Clamp that snaps onto back of NEMA 17 stepper motor and holds a common
40x40x11mm passive aluminum heat sink (I used Amazon asin#B00REFPLVM,
but much cheaper sources are available).

The "legs" clip/snap onto the motor housing, and the top bars provide spring
tension to hold the heat sink tightly against the motor. "Look Ma, No Screws!"
Thermal paste will help with heat transfer, but is not absolutely needed as the
heat sink is held pretty tightly against the motor.

The "leg