Robo R2 Improved Shroud

thingiverse

This allows tall, thin objects to be printed by directing all air flow to the nozzle tip. It enables the use of 13 mm overall length nozzles like CCTREE, which are inexpensive and readily available from Amazon. This method prevents any airflow from hitting the heater block, resulting in a zero chance of heater failure regardless of fan speed setting. The precise air flow allows me to keep fan speeds below 45% at all times.