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You can see how to easy build a simple dust collector in this video. I made a dust collector from two plastic buckets.
Making Video :
Go to this video's Youtube page and make a comment.
Did you see this ? 3D Printed Cyclone Separator - Building - Testing
I am making a jig to glue sandpaper. A great tool for making perfect sanding belts easily and quickly.

Start by downloading a PDF template from the link. Print PDF TEMPLATE. Then perform the operations on the video. I hope you enjoy it.