These are pictures of my first "real" metalworking project.  
It is a box for my generator.  The frame is 6061-T6 1*1*.125 
aluminum angle.  The skin is 050 sheet aluminum.  The hardware 
is all stainless including the piano hinge in the back.  The 
box is open on the bottom and sits on a 3" concrete pad with 
indentations for the wheels so it doesn't walk.  The idea is 
that the box can easily be detached and lifted over the generator 
so I can remove the generator and take it elsewhere to run my 
welder or plasma cutter.  I was nervous about heat build up so 
the one end has a fan to keep air flowing through.  There is 
a screen in front of the fan behind the louver to keep kids 
from cutting off a finger if they were to try and put their 
hand in.  The bulky device in the front is an external muffler 
from Jack's Small Engines to quiet it down.  Truth is, most of 
the noise comes from the generator unit and not the engine.  

In the spring I hope to add some sound insulation to the sides 
and lid and some baffles in front of the louvers to quiet it 
more.  I have one current problem.  As the ground froze, it 
heaved more in the front than the back. As a result it leans 
in towards the house and currently I cannot open the lid all 
the way.  This will make it difficult to refuel.  I will try 
to lift the back and put some stone underneath to solve this 
when I get time.  Ironically, this winter we have not had a 
single power outage.  Had several last summer.  Any additional 
suggestions or advice is always appreciated.

Barry