First I made a circular sketch
I then extruded
I then repeated but within/ concentric to the first circle
Next i cut-extruded a sketch on the center point
I then filleted the outer round edges
Next i extruded a circular sketch
I then cut extruded a hole through my extrusion
I then filleted and used a circular pattern on that future
Lastly i filleted the edges of that pattern
First i made 2 planes for lofting
Next i made 2 sketches rotated
offset to each other
I then lofted the 2 shapes
I then made a sketch on the top of my lofted shape along a circular pattern
I then boss extruded my sketch
I then filleted the edge of my extrusion
Next I made a circular pattern and duplicated the extrusion around the lofted shape
Lastly I added a dome to the underside of my shape
First i mated the interfacing faces
Then i concentricly mated the fillets
The end
First I filleted the edge
(round constant)
I then filletted the edge
I then mirrored the object
Lastly I entered the key hole for attachment
First i did a constant fillet
Second i did a variable fillet on every corner
For my last fillet I did a face fillet between the top and side