Pensil with 7.3

[planet10]

Dowels or battens do not do as good a job.

or have the added side benefit of breaking up standing waves.

dave

 

[Bob Brines]

I suspect that plywood is a teensy bit better damped than sheet steel, by yea, this is why I use longitudinal stiffeners on "large"panels,large being > 12".

Bob

 

[boblamont]

Ok, understood, thanks.