FLSUN QQ Spool Holder MK2

A Spool Holder for the FLSun “QQ” Delta 3D Printer designed to hold a standard spool of filament securely while still allowing for quick spool changes, along with a removable PTFE tube bracket used to hold securely a PTFE tube coming from the dry-box, when printing filament that are hygroscopic.

The FLSun QQ original spool holder did not work well for me in my environment. Therefore, I designed this spool holder in 2019 and it has been performing to my satisfaction since.

The part was originally printed on a Prusa MK2s in ABS and on the FLSun QQ in PLA to test the design’s print-ability on various printers. I reprinted it in Prusament PETG on a new Prusa Mini+ received recently, to test that printer.

The part can be easily 3D printed, without any support, on a modern inexpensive 3D Printer. It can be printed with a variety of materials, including PLA, PETG, ABS, ASA and many other types of printable materials.

PETG works very well for this application. It is easy to print. The object should be durable, easy to maintain, and last for a long time.

PLA also works as long as the parts will not be used, stored or kept at in a high temperature environment, exceeding ~55 C (~ 130 F). Sitting on top of the FLSun QQ, it is far enough away from the heated bed to not be affected by it.

Recommended print settings with a .4 mm nozzle

- Layer Hight: .2 mm

- 6 perimeters or shells (2.7 ~ 3.0 mm)

- 14 bottom layers (2.8 mm)

- 14 top layers (2.8 mm)

- Infill 15%~20%, depending on infill type

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