My blast gates are nothing special but since some of you wanted to see them here are a few photos.
The first one is my planer in use and closed.
The band saw is the same.
This is the downdraft section of my bench open and closed. I don’t mind that the two finger holes are always open. This is the very end of the line and I find that it’s good to have the bitter end of the line at least somewhat open. I think that when an open line is joining the main and the gates further away from the DC are all closed tight that there must be a vacuum and associated turbulence just above the “Y”. I like to have the farthest gate open a little and these seems to do the job.
This is a floor sweep trap door. gravity and suction keep it tight.
I also use several cheap plastic commercial gates. Unmodified they will soon plug in the corners and not fully close, but the modified one on the left won’t. It simply has its end cut off so the dust and chips push right through. You sometimes have to add a drop of glue to keep the sides together but they work much better.
That’s it ! Sorry there was nothing very innovative or amazing, but then they’re blast gates. How innovative can they be? The important thing is that they all work and I just love my system especially now that it REALLY SUCKS. (Actually it sucked before, with the bag filter…. but not in a good way.)
Thanks for looking
Questions, comments and critiques are always welcome.
-- Paul M ..............If God wanted us to have fiberglas boats he would have given us fibrerglas trees. http://thecanadianschooloffrenchmarquetry.com/