Hi,
You have some options:
Print a PDF in 1:100 scale, and open that in Photoshop.
A method I sometimes use:
set your background to pure white
draw a visible frame of known size around your model, so that nothing goes outside it. If you need a partial elevation, draw the frame as a hole in a large face, and place it in front of your model. If you need several views, make the frame a face-me component
zoom so that the frame almost fills the screen
export the view to a high-resolution image file
open the image in Photoshop
use the Trim command in Photoshop to crop away all white space around your frame lines.
use the Resize command to resize the image to the scaled size of the frame, and the desired resolution.
if the file needs further cropping, you can do that now.
Anssi