This drawing is a little bit harder than the base plate due to the arcs and circles but still fairly straight forward. You can use either the compass or a circle stencil for this drawing. I like using the stencil for this because it is easy to line up the marks on the stencil with your construction lines and center marks. Use the 45/45/90 triangle so that you can draw the chamfers easily.
Drafting Board
Drafting Paper
Drafting Pencils
Eraser
T-square
Compass or Circle Stencil
45/45/90 Triangle
Architectural Scale
Find your center and draw a horizontal center line
Off set your horizontal distances with a scale
Draw vertical lines, chamfer, and construction lines
Draw your arcs and circles
Draw the connecting straight lines