Budget Machine for sign industry

[Musht]

Think alloy panel OP refers to means Di Bond and similar

http://en.wikipedia.org/wiki/Sandwich_panel

usual to rout V slots for folding in it.

Oscillating knife used for correx/twinwall

http://en.wikipedia.org/wiki/Corrugated_plastic

But thought that was a reasonably strightforward attachment in place of spindle?

What are the problems with knives on CNC machines?

Thanks!