Flux Delta external filament spool holder

Flux Delta printers have a recess for smaller spools, but a one kg spool won't fit. This spool holder is designed more-or-less on the fly to hold larger spools. It clips over the front (relative to the cover hinge) and is slightly sloped on the back side to prevent interference with the extruder carriage. The back side of the clip fits precisely over the cover latch and is sized to fit equally well on the top of the printer. There is very little movement or play in the clip portion. I suspect th