About this 3D model

The 1/8 BSP screws right through the effector and into the Bowden J-Head hotend eliminating the need for retainers.The effector BSP screw depth is 2.5mm thick. Just make sure to enlarge the end of the BSP/NPT push fit adapter by drilling out with a 4mm drill bit so that the 4mm PTFE tube can go through right into the hot end. Print at 0.3mm or lower layer and 33.3% infill.Slice with Kisslicer for accurate (tight) fit BSP. 17/04/2014: Fixed missing M3 nut holes.