Using a robofence designed by Chris the Carpenter for inspiration, I decided to try drawing up something that would allow for more disassembly, and, be able to be parametric. The included stl file is for a 2" tall board that is 1/4" thick, and, a 1/16" hinge pin. The walls are 1/8" thick.

inch = 25.4;
thickness = 1/8 inch; //thickness in in
boardHeight = 2 inch;
boardWidth = 1/4 * inch;

endcapWidth = boardWidth + thickness 2;
endcapOverlap = 1/2 inch + thickness;

hingeHoleRadius = 1/16 * inch; //hole for bolt, or other hinge bar
hingeRadius = hingeHoleRadius + thickness; //outside diameter of the hinge