Overarm dust collector for table saw

I made this overarm dust collector for my table saw based on the great design from Justin Depew's.

Side view. I used PETG plastic material.

The dust collector can be raised up to match the thickness of
the wood or to not getting in the way if it is not necessary.

The upper knob disengages the support and the lower knob

 is to adjust the dust collector distance from the table top.

The performance of this dust collector is very good and it is very convenient.

For more detail check the Justin's website or his youtube channel.