Mostly Printed CNC Center Unit

I have designed several 3D printers over the years and I have found that while bearings do work they often create a lot more friction than bushing. So, here it is, 3D printed bushings for the CNC center assembly instead of bearings.

I have printed one of these just to get an idea of how well it will slide on the conduit and I must say it slides much better than I thought it would.

Anyway let me know what you think and remember this is just an idea and most definitely a work in progress. I have added the SolidWorks file in case anyone else would like to make changes to my design.

Update: 1/20/2016

I noticed during extensive testing that there was a fair amount of friction caused by the weight of the tool head pulling on the the z-axis causing the entire assembly to tilt so I added some bottom support in hopes that this will correct that issue. Once it is tested I will update this things status. I have also upload some new files with these changes as well.

Update: 1/20/