Incomprehension

I should have taken a magnifying glass but ... This is actually a very large loom with 9 bars to assemble. But the catch is that the bar can not reach that staggered. Beware if you want to go where the elastic wall studs should be aligned, you will be unpleasantly surprised ... like me! I was also misinformed in comments by a person who was talking about large rectangle. In short, I had to fall back on the official mark in order to have the right format.