Week 14 challenge

Report -

Top view -

Front view -

Side view -

Applying GD&T on the assembly -

The main body of the valve is used to connect two pipes. The three flanges with holes on them are going to touch the surface of pipes in corresponding geometry.

First, we have to decide Datum A which in this case is in the form of target datums. Now, the opposite surface of Datum feature A has to be controlled using Profile of surface tolerance.

Second, giving flatness tolerance to target datums A1, A2 and A3.

Third, giving perpendicularity tolerance to first hole and then giving position tolerances to rest of the holes. Making holes as Datum B and C.

Fourth, making the remaining hole as Datum D for further use as explained below.

There are two faces which will connect two pipes. The holes on the other side must be coaxial to holes made as Datums.

To maintain coaxial constraint the other side holes are given position tolerance with respect to hioles exactly opposite to them.