I have a gumstix connex400xm board, a robostix-TH board, and a netMMC RoHS board. I also have the 'screws and spacers kit' from gumstix. I want to connect all three boards together (with a header soldered to the UART pins on the robostix and another header soldered to the PWM output pins on the robostix) and fix them together with spacers and screws.

I was wondering if a procedure for assembling these boards existed, or if there was a correct order to build this stack. Any important things to keep in mind? I am a little worried about mechanical interference problems, as the 60-pin hirose connector on the robostix (or maybe its the one on the connex) seems a little crooked with respect to the board edge...

Thank you for your help!