Then I drilled and mounted the bearings on one side at the end of the board and hanged the side on the board upside down, with the bearings on the track. That worked pretty good, so I had the angles installed and bolted at the ends to the table. I clamped the angle as a straight edge and used the Dremel again with a end mill bit.
Then I decided I should start from the table, and see if I can route channels for the aluminum angles to rest directly on the table instead of the 2" pieces (ah, that's what they were for!). This setup worked so-so, as the bit is too long and vibrates a lot, but I could chamfer the boards a little so I can mount the aluminum angle. How do I do it then? I just bought a #10 quick change countersink drill bit, pulled the bit backwards until it came out about 5 mm from the countersink (front) part, mount it on the Dremel and mounted the Multipurpose Cutting Guide attachment ( ). Here, you can find in the stores the Router attachment for the Dremel, but no router bits. But hey, I live in Canada, not the States. All I needed was a chamfer router bit for Dremel. I don't have that tool, but it crossed my mind I do have sort of a router, a Dremel. I the videos, the guy uses a router to chamfer the boards to mount the aluminum angles. I will use double bearings with a washer in between that will ride on the outer corner of the aluminum L profile. Why I need that? Because I decided to make a hybrid between the CNC from the videos on the and TinHead's Valkyrie. So I got pretty much everything I need, except the routing bit. I got a 2'x4' 3/4" MDF board at Home Depot and I had it cut in several 24" long pieces: one piece 17" wide for the table, 3 pieces 6" wide for the sides, 2 pieces 4" wide for the Y and Z axes and 2 pieces 2" wide for. That would have made the track construction much easier.
If I would have decided to buy V-groove bearings from VXB.com at $7.70 a piece, I would have paid $123.2 plus shipping (and eventual taxes) for 16 pcs.
I got 40 bearings for a little over 80 dollars (CAD) including taxes. It was a hard task to find cheap bearings in Toronto, but after 3 days of Google-ing the internet and driving around city to find closed down stores or no bearings in stock, a few (huge) quotes from bearings distributors, I tried Yahoo by mistake and found the Cardinal Skate store. Yesterday I finally got the bearings from a local skateboards and roller blades shop ( Cardinal Skate). But I wanted a bit more Z axis travel, so I can add an extruder and make 3D parts. Although this kit did not seem expensive, considering that I put almost $200 in parts and lots of work to build it. Now, after so many years, I decided to make my own machine instead of buying a kit. Here I almost bought (something happened and ran out of money) a ready made machine with no electronics or motors for $300 from the guy that makes the Rockcliffe boards. I had to abandon it when I came to Canada, but took the electronics and motors with me. Over there, I had an attempt after this site, but it didn't came out good as I did some mistakes. But I didn't had time to order the acme screws and linear bearings and I left USA and returned to Romania.
I bought the 4 axis EZ Driver combo kit from Hobby CNC, together with the CNC plan they had at the time. Long time ago, about 5 years I think, I started looking up DIY CNC machines.