Week 14 challenge

ASSEMBLY

Assebmly is done by fixing the butterfly valve body and inserting the shaft and arresting the 5 DOF s of the shaft by leaving a rotation of it for the proper functionality.Then we will insert the plate on the shaft and areest all the DOFs of plate with respect to shaft.Retainer will be placed on the flat face of body of butterfly valve and arrest its all DOF s in the context of assembly.Lever will be added on top of the retainer and it will be arrested as it will rest on top of retainer and its motion will be arrested with respect to shaft so that it will move with shaft.and we will add nut on top to arrest the motion of lever to upward direction.Now the functional requuirements will be met in context of assembly.

DRAFTING AND GD&T

• One face which will attach to another part is mentioned as DATUM A and the holes where nuts come in contact are mentioned as datum target area. For two holes position control is given and for the other perpendicularity tolerance is given and each of these mentioned as B,C&D datums respectievely
• For the body on the other side of datum A profile of a surface is given to control the height of the body.
• On the other side the holes are controlled with the position tolerance for the correct allignment and proper functionality.
• These are controlled with maximum material boundary and maximum material condition modifier