How to force Objekts together^^

First of all thanks to zardOz for his big digital display tutorial ^^ it shows how to create an big Display

I thought about to give this trick to other newbies like me
Short an easily discribed

Here it is :D

Mine tutorial is based on hims :3
In this little tutorial i want to show you how to "force" objects together :)
You can recreate almost each thing you want to
Just look at the examples and read the texts :)