Hi Matadem,

re:
> How would I trim these 48 pieces fast? I need to cut out the shapes out of the circle.

With closed curves you can use boolean difference which can speed things up.

Start with the circle selected:



Then run Construct > Boolean > Difference. The prompt will say "Select objects to subtract", select the diamond shapes:



You will then get this result:



- Michael

Or "Union" gives you the opposite side...

The boolean union is that I needed.

but strangly when I was tried this earlier It did not go.

Tnx!