vibrator recommendation for large groundglass

[David_]

I need to film off a large groundlass, 12" by 12". I want to vibrate this glass as is done in the 35mm adapters. Any recommendations? I am assuming that the vibrators for the 35mm adapters might not be powerful enough to move the larger plate.

[Batutta]

Vibrator...tee hee hee.

[DM_rider]

12"x12" that's huge? what would you be filming off a 12x12 surface?

[David_]

I will project 16mm and 8mm footage onto the glass.