Blender
Modeling
Merge vertexes together
Modifiers
Array modifier- Make copies
Bevel modifier - To smoothen edges
Merge vertexes together
ALT+M
Array modifier- Make copies
count- to define the number of copiesConstant- define a Constant space between objects with X Y and Z. The distance does not change when modelingRelative- The space between objects is relative. The distance changes when modelingobject-you can give an object where the copies will be created based on that object. you can use an empty or any other objectyou can even add an arry to an already arrayed objectStart cap - Can be used to fill up an object based on a given start cap
Bevel modifier - To smoothen edges