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After watching this video, you can make a DRUM SANDER easily.
Start by downloading a PDF template from the link below. Print PDF dimensions table (this PDF). Then perform the operations on the video. I hope you enjoy it. Please subscribe to my Youtube Channel and turn on notifications.

Making Video :
Go to this video's Youtube page and make a comment.

I've updated this machine, see this page: Thickness Drum Sander Motorized Feed Mechanism
I print a Cyclone Separator file that I downloaded from the internet on a 3D printer. I'm trying to make a Dust Collector using the resulting Cyclone Separator.

During compression, the ruler slipped and I could hardly get the size I wanted. To solve this problem, I designed a new ruler marking gauge.