Does anyone know how to make the plastic part of a blister pack used in the medical packaging? How do you make it all as one seamless object? The pills and the base are both separate elements so that's not an issue.
Create a plane
Subdivide it 3 times

Select the vertices in the center ring and do mesh &gt; tranform &gt; &quot;to sphere&quot; and move the mouse to create an octagon.

Extrude the center

Add a subsurf modifier

set the shading to smooth

To have sharper edges add a  couple of loop cuts

Select the outer edges and then select Edge &gt; Crease and set the crease to 1.0 to make the outer edges sharp.

Add a couple of array modifiers