C style shape for openscad with rounded ends. Designed for my own use.

cshape.scad

module cshape(d,h,wall,angle = 180, reset = false){ //d = internal_diameter
    rotate(reset == true?-(360-angle):0)
    union(){
        rotate_extrude(angle = angle, convexity = 10) translate([d,0])square([wall, h]); 
        translate([d + wall/2,0])cylinder(d = wall, h = h); 
        rotate(angle) translate([d + wall/2,0])cylinder(d = wall, h = h);
    }
}