I have been wanting a sliding table for my tablesaw for quite some time. The thing that has kept me from starting this project has been the bearing system. I also have been researching a shop built CNC, and that is
where I got the Idea for my linear bearings.
This is the sliding Table mostly done
This is the bearing system I decided to use:
To make these bearings I started with some 3/4” aluminum I found at the scrap yard.
First I cut all the aluminum 2” X 6” on the table saw. I then cleaned the blanks, the long edges I ran across
my jointer. Then cleaned the blanks up on the disc sander and my belt edge sander.
For the center bearing grooves I started with setting up the drill press, the fence so that I was drilling as close to exactly to the center as possible. I then set a stop block to drill back in from the end 1”. After drilling 5/16” holes in 10 bearing blanks, I went back to the table saw and with the help of my TS sled, I set it up to cut with
the blank standing on end and to meet the edge of the hole already drilled. After that I would unclamp and rotate the piece (with out flipping end for end) and make the second cut allowing the center waste to fall away.
then I flipped it end for end and made the second 2 cuts in the same way. I repeated this for all 10 of the bearing blanks. The blanks will become what is called a bearing truck so I will call it the BT from now on.
Please continue to check back as I continue to explain the build. Also I do not type so I put a great deal of effort into a long entry like this.
I do not know if I will get back to this tonight, but it will be soon.
Thank you all for looking, and comments are encouraging, Todd
-- Todd Swartwood (Todd Swart-Woodworks)