Thread: Cyclone Main Duct

Any level of redundancy you want to include is really up to the shed owner.
If you think there's a good chance you can use it soonish and you have the time and $ and . . . . . then it's probably a good idea.

The main reason for running 8" close to the TS would be to get 6" direct from the 8" direct to the cabinet and another 6" (or at least a 4") also direct from the 8" direct to the saw guard - that gives you max air flow to catch as much fine dust as possible. If you run 6" up to the saw and tap off a 4" from the 6" then you will have less total airflow.

Thanks Bob, quick response as always.

Your reply has confused me some what though. You mentioned redundancy? I'm not sure what you mean by this. I'm only running the one main down the middle with the drop down branching off to the sides horizontally before actually heading downward. My main concern was that because I was running down the centre of the shed, the length of the horizontal component would be around 3m.

Mr Pentz recommends running the drop down horizontal for a while prior to heading down but I wasn't sure if 3m was too much.

As for using two 6" for the TS, I was going to do exactly that with the overhead one for the blade guard being open most of the time as a scrubber for other machines etc, possibly designed so it can be adjusted quite high whilst scrubbing.

Cheers again Bob for being on tap for dusty questions. Bill's site is a great resource but sometimes it seems there is too much information, it really is rocket science.

Originally Posted by RicB

You mentioned redundancy? I'm not sure what you mean by this. I'm only running the one main down the middle with the drop down branching off to the sides horizontally before actually heading downward. My main concern was that because I was running down the centre of the shed, the length of the horizontal component would be around 3m.

Sorry I mistook what you meant by "centre". I had in mind that you were considering running 8" to the centre of the shed and then branching out from there with 6" because you only had one machine (the TS) at the other end of the shed. Like the diagram on the left
shedDClayout.jpg
Whereas it sounds like you are going to be doing the setup on the right?

Mr Pentz recommends running the drop down horizontal for a while prior to heading down but I wasn't sure if 3m was too much.

it should be fine

As for using two 6" for the TS, I was going to do exactly that with the overhead one for the blade guard being open most of the time as a scrubber for other machines etc, possibly designed so it can be adjusted quite high whilst scrubbing.

Cheers again Bob for being on tap for dusty questions. Bill's site is a great resource but sometimes it seems there is too much information, it really is rocket science.

BP's stuff on the web is information rich but written and formatted more for a text book than the web. IMHO no matter what material is being presented on the web, it should be written quite differently.