Working with kitchen cabinets. Each has 2 side with holes going vertical up/down each side of cabinet. Typically you would put metal shelf supports to hold a wooden self that would go from one side to the other.
I needed a modular shelf for holding water bottles. Came up with this.
The holes are designed to hold 3/8 inch dowels.
Shelf Support has 3 pegs designed to fit into 4.85 mm peg holes for shelf. With a distance of 31.75 mm between each peg hole. 120 mm in length.
Shelf Leg - has a 25 degree leg for a slanted shelf.
Quarter Support - is 25 mm in length.
Half support - is 65 mm in length.
Dividers and Shorter Divider are used to go in between 2 dowels to support or provide some rigidness to the shelf. 120 mm and 80 mm in length.
I printed this with wood filament and 6mm nozzle.