|Forum topic by Elizabeth||posted 04-08-2013 11:22 PM||1482 views||0 times favorited||14 replies|
04-08-2013 11:22 PM
I have a mix of metal ducting and plastic dust hose in my shop.
I have a Laguna 2HP dust collected with a 6” inlet, and the ducting goes to 4” before running to my bandsaw. The bandsaw is the closest machine to the collector on the system. Here’s a slightly old photo showing the basic setup:
I have also added a wye to the bandsaw connection, with a 2” branch coming off so I can collect dust from directly underneath the table in addition to the back of the machine.
This week I am adding an 18” bandsaw to the system. The two bandsaws will be located next to each other, and I am going to use the same basic ducting run for both bandsaws. I will add a wye which will turn the run into two 4” runs, one for each bandsaw.
Add to this the fact that the 18” bandsaw already has two 4” ports on it – one at the back of the machine and one under the table.
So to recap: one bandsaw has a 4” port and a 2” port, and one bandsaw has two 4” ports.
My question is about whether I can have both machines run off the same blast gate without too much of a loss in suction. I have a choice of attaching the blast gate BEFORE the split, immediately off of the metal ducting on the ceiling, or getting a second blast gate and attaching them somewhere within the plastic ducting runs closer to each machine. I’d rather have just the one gate, for cost and ease of access reasons. The suction of the system seems pretty good, but I don’t know if having the two bandsaws “active” on the dust system at once will have an adverse effect to the efficiency of the system.
Thoughts? Should I just try running one of the bandsaws with a gate to a different tool intentionally left open elsewhere, to simulate the airflow and see what happens?