Kossel E3D part cooling with IR

Part cooling fan and hotend cooling for Kossel. Inspired by many similar designs, but made with size, weight, strength, and suitability to hold the hotend rigid in mind.

Mounting holds for DC42's differential IR sensor (use E3D's heater block sock to insulate the block from the pcb). The PCB mounts inside near the nozzle. Between the air gap and the insulator, the temperature seems to be reasonable for the sensor.

Uses 35mm fans (3510). 40mm fans were too large (and designs accommodati