It has become clear we need two totally different dust collection systems in our shop.
A high lift but low flow and a high flow, low lift. Neither can do all.
So, the high flow upgrade is just some moving of ductwork as my CV1700 is a beast. I need to do a couple more mods on the table saw to focus the airflow. Through a quick connect, it will service the planer, jointer and drum sander. I may include a hood over the miter saw. TBD. Sticking with the 6 inch ductwork. 4 inch and 2 1/2 drops go away.
Here is the big change. Going to hard plumb the high lift system. A couple small mods and both my spindle sander and disk sander are just about dust-free when run on the vac. Not by a far cry on the big cyclone. A central port for hand-held tools and for the long cleanup vacuum wand. One more to service the router and fence, one for the Kaypex.
Now the questions:
I want to use commonly available components. Home central vac systems have similar flow and lift. They run 2 inch OD piping. Larger shop vacs run 2 1/2 OD. I was testing to the sanders with 1 1/2 inch hose and it worked just fine. I did not see a difference with the 2 1/2 hose. Schedule 40 comes in 2, 2 1/2 and 3 inch. 2 1/2 would seem to be the logical and closest to shop vac hoses but is uncommon. Running a trunk in 3 may be fine but I need to do the calculations to see if it can maintain the velocity to prevent dropout. That leaves 2 inch ID as the other option. Any experience? Being smooth and we can get nice long sweeps, Ys, etc, it should have similar drop to a large hose and for sure less than the much smaller hoses in 20 and 30mm. I can get ball valves quite reasonably. They look like they should not clog and are airtight for sure. The other choice is spend a lot more and use "dust collection" hardware that is 2 1/2, but thin and much more expensive. Not sure the blast gates, Powertec or similar, are as leak proof. Maybe I am wrong, but in high lift systems, resistance is not as important as in high volume systems so running a larger main is probably not worth it.
I added some brush type door sweeps to 3 sides of the TS over-arm hood. Drilled a few holes in the throat plate where the jet of dust follows when ripping half a blade edge. Subjectively less than half the dust, probably more like 1/3. Next is to glue in some half round around the port. Same inside the saw cabinet.
A high lift but low flow and a high flow, low lift. Neither can do all.
So, the high flow upgrade is just some moving of ductwork as my CV1700 is a beast. I need to do a couple more mods on the table saw to focus the airflow. Through a quick connect, it will service the planer, jointer and drum sander. I may include a hood over the miter saw. TBD. Sticking with the 6 inch ductwork. 4 inch and 2 1/2 drops go away.
Here is the big change. Going to hard plumb the high lift system. A couple small mods and both my spindle sander and disk sander are just about dust-free when run on the vac. Not by a far cry on the big cyclone. A central port for hand-held tools and for the long cleanup vacuum wand. One more to service the router and fence, one for the Kaypex.
Now the questions:
I want to use commonly available components. Home central vac systems have similar flow and lift. They run 2 inch OD piping. Larger shop vacs run 2 1/2 OD. I was testing to the sanders with 1 1/2 inch hose and it worked just fine. I did not see a difference with the 2 1/2 hose. Schedule 40 comes in 2, 2 1/2 and 3 inch. 2 1/2 would seem to be the logical and closest to shop vac hoses but is uncommon. Running a trunk in 3 may be fine but I need to do the calculations to see if it can maintain the velocity to prevent dropout. That leaves 2 inch ID as the other option. Any experience? Being smooth and we can get nice long sweeps, Ys, etc, it should have similar drop to a large hose and for sure less than the much smaller hoses in 20 and 30mm. I can get ball valves quite reasonably. They look like they should not clog and are airtight for sure. The other choice is spend a lot more and use "dust collection" hardware that is 2 1/2, but thin and much more expensive. Not sure the blast gates, Powertec or similar, are as leak proof. Maybe I am wrong, but in high lift systems, resistance is not as important as in high volume systems so running a larger main is probably not worth it.
I added some brush type door sweeps to 3 sides of the TS over-arm hood. Drilled a few holes in the throat plate where the jet of dust follows when ripping half a blade edge. Subjectively less than half the dust, probably more like 1/3. Next is to glue in some half round around the port. Same inside the saw cabinet.