This is a custom Gridfinity system bin I have created that holds:

• 3 A1/A1 mini extrudes with accompanying screws
• 3 spare filament cutters for AMS Lite system

Gridfinity specs are as follows:

• 2x2 module
• 4 units high (with base)
• 1.5 units hollowed out

Other comments:

• screws holes are slightly tight, so that screws do not easily fall out, you need to screw them in/out
• 10% flow ironing did not work well (you can see it in pics), I have bumped it to 15%. Use your own setting for your filament & printer.