About this 3D model

One of the first things I designed in OpenSCAD. This was made to try out the Minkowski and linear extrude functions. The pencil pot in the photos is around 83 mm tall and with a base of 58 mm x 58 mm. The filament used is 1.75 mm bronze finish PLA. OpenSCAD code $fn=50;minkowski(){ cube([66,66,2], center = true); cylinder(r=2,h=2);}linear_extrude(height = 80, twist = 45, slices = 150) { difference() { offset(r = 10,chamfer=true) { square(50, center = true); } offset(r = 7,chamfer=true) { square(50, center = true); } }}