Our choicest plans have fallen through,
our airiest castles tumbled over,
because of lines we neatly drew,
and later neatly stumbled over.
~ Piet Hein
I own lots of sewing patterns.
I use sewing patterns all the time.
I know sewing patterns.
My ergonomic weaving bench is supposed to have a cushion. As such, the blueprints for building the bench came with... well, blueprints for sewing the cushion cover.
Here's an early page:
It gives the dimensions of the piece of fabric and has you make a single, 1 inch fold along each edge.
Next, it has you add hook and eye tape along the two short edges, such that the length can be folded over and the two edges connected.
Once the main fabric has been prepared, the blueprints show you how to prepare the straps with D-rings:
These straps get attached to the fabric like this:
Here are a couple of shots with my fabric:
Here you can see it folded over, hooked with the hook and eye tape - all four straps on the bottom of the cushion cover.
Finally, the blueprints have you stitch the two open edges of the cushion cover closed:
Here I have stitched up those two edges:
Here you can see the opening - with hook and eye tape - where you insert the cushion:
...and with the cushion (you're still looking at the bottom):
Finally, on the bench!
I have never sewn from blueprints before, and it felt kind of odd...
But, while I'm not sure it would work for a blouse, for this home dec project, they worked out quite well! :)