I am in the process of making a poster to be presented at a scientific conference. What line width would you recommend for elements like arrows, graphics, and frames around text?
I am using 28 point Arial for the body, and 48 point for the subheadings. I am at the moment using a line width of 1.1 mm, but it’s hard for me to judge if this will look right once printed. Of course it would be best if I could just make a mock up and print it on A0, but let's assume this is not an option.
If it matters, this will be a mathematics conference, most of my graphics will be abstract shapes, like cylinders, tori, and loops.