I base this off Gridfinity Storage Box by Pred and I made this into 1x3

How to print?

I use PETG and also recommend it, but plenty of people printed the original model using PLA. I did not test with PLA!

Base

• Recommended profile: 0.3mm DRAFT
• I recommend adding supports to the bottom of the locking tabs
• Place it right side up

Lid

• Recommended profile: 0.3mm DRAFT
• I recommend adding supports to the hinge slot for the long bridging (on a well calibrated printer this might not be necessary, but better to be on the safe side)
• Place it right side up

Hinge (screw)

• You can print it the same way the printed version (bolt head part facing down), or print the two parts separately and use appropriate support for cleaner result.
• You'll need an M3x30 bolt and an M3 nut per hinge.