Just Follow the “Manual” picture by starting with Part A.
You will need:
10x 5mm Bearing balls
Glue
I recommend the use of some long-term lubrication. LM-74 f.e. but it works dry as well.
The Notebox i used has the following Dimensions:
96mm x96mm x88mm.
Supports are needed for the Following Parts:
Part C ( keep the Bearing groove upside)
Part G
Part I
The author marked this model as their own original creation.