B3 Pico Hot End Magnetic Effector for Kossel Plus / Delta printers

This is a modified version of the excellent original effector Haydn Huntley where you can find the original design here:

https://www.youmagine.com/designs/kossel-plus-magnetic-effector

The ring with the groove mount was originally 5.5mm thick. The Pico B3 groove mount is 4.5mm thick, and so would not fit into the existing design. The STL file had been imported into Sketchup and removed all of the extraneous triangle lines from the design so that modifications could be made more easily.