Volcano mod for flsun

TO install a volcano on the qq-s: -since the volcano is 6mm longer you need to move the bed leveling sensor, so I made a new sensor housing, just print it, decase the flsun bed sensor and put in the new case. -you also need to tell the printer the hotend is 6mm lower, one way for example is modify the firmware, download the latest firmware from FLSUN (i'm using the 2.5) in the robin_mini_config.txt change the line Z_MAX_LENGTH 360 to Z_MAX_LENGTH 354 update the firmware, and recalibrate the bed using the modded sensor and set z0. -change the cooling ducts to the longer ones provided here. (They are better if you use my 5015 blower mod... ;)