Gap between objects created using array modifier objects I was following an online course to learn blender on Udemy. I was using array modifier to create an array of objects using array modifier. The relative offset is set to (0,0,1), and I was expecting objects to be right next to each other without any gaps. Whereas I get something like this:
 

I could get rid of the gap by decreasing relative offset value along z. But I wanted to understand what's giving me this gap, while the online course used the same relative offset and had no gaps.

Details of a single object: it is made up of 4 cylinders with a non-default property "Nothing".

[Edited] Screenshot from the video that I am following:

You can see no gap between two objects. I see that we used same settings.
Tick the Merge checkbox in the array modifier. It is most likely that your instructor too had used Merge option ticked