Hi everyone,
I’ve been looking around trying to find a good way to make a small cnc on the cheat and yet get good results. I pretty much like the KRMX02 design, and I thought maybe if it were made smaller (12”x12”cutting area), there could be a way to make something affordable and yet rigid enough for wood, plastics and small alu milling.
I’m droping this here because I want to get some input before I get too far with this winter time-killing project…!
Here is the basic of what I came up with:
Attachment 259114
Attachment 259116
You can see I would use 1515 extrusion for the cnc, 1010 extrusion at the bottom and ¼” cold rolled steel.
Here is a closer view at one of the linear carriage:
Attachment 259118
Cncrouterparts linear carriage are 35$ each and I wanted to keep the price down so I came down with this. What do you think? Yay or Nay?
So far that makes for 220$ of extrusion, something like 75$ of cold rolled steel and 81$ in T-slot joining plates (which sounds like more money than just using metal angles and plates, but I don’t know what thickness and size would be enough…).

So:
-Does it seems as a good idea or not?
-Will be rigid enough?
-See some design flaws?
-Ways to make it cheaper without too much effort?
-Feel like it’s worth throwing around 500$ in it?