|Project by luv2learn||posted 12-06-2012 05:24 PM||5662 views||48 times favorited||46 comments|
A couple of weeks ago fellow LJ Hillbillyshooter asked me what I did for dust collection on my scrollsaw. He had just built a really nice storage unit under his saw but had not addressed a dust collection solution yet. I had to admit that I had not addressed dust collection either.
As I was thinking about the dust problem I remembered that I had seen guys use a downdraft dust collection system for their sanding stations. I wondered if that could work on my scroll saw. I couldn’t let the idea go until I built a prototype and try it on my saw.
I had some left over tempered peg board, a piece of 3/8” plywood, and a spare 2 1/2” fence port fitting. I traced the outline of my table on the plywood (photo 2), added four ears to act as anchors for my glue blocks, and outlined a place to anchor the port fitting (photo 3). The glue blocks gave me a tight friction fit of the downdraft prototype to my table. They also give me the option of adding hold downs later if I need them. Photo 4 shows the tempered peg board glued to plywood framework. It also shows how O blocked a portion of the fence port.
I was anxious at this point to see if my idea would actually work. I knew that I had too many holes in the pegboard to create the suction I needed so I used clear packing tape to block the rear most holes. I also laid a straight edge across the pegboard to check for sag. I had some, no surprise, so I tied the pegboard to the straightedge, cut 1/4” hard wood dowels, and inserted them into the holes around the blade until they touched the table, cut them to length, and glued them in place (photo 5).
I was making fretwork Christmas ornaments so I cut a few out with the dust collection in place. I was pleasantly surprised to find that 99.5 percent of the sawdust was collected rather than falling down on the saw base and on my shoes.
The downside to this type of system is that you loose some depth capacity but most of the projects I cut out on my scroll saw are 3/4” thick or less. The upside is that I can still use the tilt feature of my saw with the dust collection in place.
What would I do differently? I will try making a version 2 using a 1/4” plywood frame and I would move the fence port forward, perhaps to the middle of the table.
Well, I am not suggesting that this is the best dust collection idea, or even a good idea, but it is an idea, it works for me, and I had to try it. I will dress up version 2.0 and make it look pretty :).
Thanks for looking!!
-- Lee - Northern idaho~"If the women don't find you handsome, at least they ought to find you handy"~ Red Green