The 'trick' is to create a very small blend, in this case 0.01mm, on the sharp edge of the 'Drafted' faces of the bottom 'feature', as I have done in the attached model.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA Siemens PLM: UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.