This my take on Phil's top hat

Assembled from scrap in shop
Seems works very well
1st thought was to exhaust outside,
but for the moment it is connected to 5m bag (not pictured)

1dust.jpg
Hose goes to 3" from separator plate
2dust.jpg
3/4" ply attached to barrel lid
1.625" drop zone
3dust.jpg
Adding height
5dust.jpg
Wheels and handles
6dust.jpg
Ready to rock!