now i have the interaction regions (iar) at 200 and 650mm from the beamline flange. i have positioned the up, down and side 360 flanges, so that the 250 flanges can be centred around the iar's with off-centre 360-250 adapters. i have the positioned the viewports to look on either one of the iar's, or the submicron optics (red and blue pucks).
