Kossel Plus Onboard Spool Holder

Kossel Plus Extended version is built in order to set spool holder between power supply (under spool) and Trigorilla board (over spool).
This spool holder has 6 small cubic neodimium magnets 5x5x5mm in order to hold in position the spool, locked by the screw.
You should print base and screw stopping printing at appropriate height in order to insert magnets: remember to glue them before restarting printing, otherwise magnets will stick to metal rod ends!

You can use PAuse at height in Cura, in Simplify3D or whatever slicer you use: have a look here
https://3dprinterwiki.info/wiki/wanhao-duplicator-i3/misc-tips-and-tricks/pause-at-layer-height/