Week 14 challenge

There are 7 individual parts assembled together to form a fully functional butterfly valve. Assembly is done using assembly constraints, aligning the center axis, touch command, and pattern command to replicate the screws. 

Datum A is located on the surface where it contacts the pipe surface, there are three datum targets created to help reduce the cost of selecting the entire surface 3 targets are around the 3 holes in the extended fins-like structure all the datum targets are given the flatness of .25mm.

Datum B is one of the holes near datum target A of dia 49mm with a tolerance range of 0.1mm with a Geometric Tolerance Characteristic of Perpendicularity of 0.25mm at MMC With respect to Datum A.

Datum C is one of the holes near datum target A of dia 49mm with a tolerance range of 0.1mm with a Geometric Tolerance Characteristic of position of 0.25mm at MMC With respect to Datum A and Datum B at MMC.