Slide on Guide!
UPDATE: Minor cosmetic changes and a bit of optimizing.
Added a Thin walled (filament side) version by request.
No need to use and tools, just print and set in place.
You will need to squeeze extruder arm open to move filament out of the way.
No supports needed.
Tested by raising Z to max and hitting Go Home, Stayed in place every time.
Have used during prints and does all it needs to do.
For those who have tipped me a coffee, I offer back a huge thanks.
For those who wish to, I drink the cheap stuff.