--UPDATED:
For some reason I am not able to update these files so if you want this sketch go look for it in the forums..
Here is the first step in the linear motion design for the contraptor components (or the mini-router specifically).
Its pretty simple but its 100% accurate right now. So go ahead and use them in your design sketches.. If you want to get these in bulk cheap I suggest you look here.. I got mine from this vendors ebay store.. Link here.... http://www.vxb.com/page/bearings/PROD/8mm/2ISB-1
Riley
All right, nice bearing sketch. Good to see something made in Sketchup under Wine.
I do have some issues with it, I replied at length in forums
This is the newer and improved model. I fixed a few minor things...
Riley