Learn how to straighten the edge of Roman Blinds

Hi
A Request was make via email.
"Hi,
I am inspired by your Youtube videos on swags & Tails! I have only one question if you could please help? I have great difficulty keeping a straight edge whilst making Roman Blinds, although my Romans are very good but tend to get a little out of shape from the edges. could you please please advice me on that??? "

And my response was to make this video to help.

Видео Learn how to straighten the edge of Roman Blinds канала Des Swags Curtain & Blinds Maker