Constraint Problem

[Howard1502]

Hello all! On Inventor, I was in an assembly and attempting to constrain an electronics board to a platform they were supposed to be on. When I used the face constraint, using the bottom of the electronics board as selection 1, and the platform for selection 2, it seemed to work. However, when I zoomed in, it was not fully constrained. It was at an angle leaving a small part of the board still off of the platform. I cancelled the constraint and tried again, and it did it again. Both parts are completely flat on the faces I constrained, and even when I used the angle constraint to attempt to make it go flat, it just went through the bottom of the platform. After that, I made a "plane" on the bottom of the board, and the top of the platform and then constrained, but it still didn't work.

Any suggestions on how to solve this?


Thanks!
Howard