This is a hack for using AON3D M2+ style dryboxes that were originally designed for vertical hang mounting (don't ask...)

With a slight offset too their central post you couldn't use them any other way until now! Behold!

Now with just two printed parts, some M5 hardware and an old flat flanged spool cut down at the hub, you can now lay them flat on the table and have even less friction than ever.

You will need:

• (3x) M5x25mm hex head cap screws
• (3x) M5 nuts
• (3x) V-groove wheel (off you old Ender3 spares)
• (1x) printed Wheel Cage part
• (1x) printed Offset Post part
• (1x) an old 2kg solid flanged filament spool (that is what I did) or print one from the STLs

Simple and easy to assemble from the images.

Enjoy!

STEP files included for those who want.