Ryan (and others), thoughts on making a CNC using Aluminum Square Tube (6063 T52), say 1-1/2" x 1-1/2" (1/8" Wall)?

[superflyguy]

Linear Motion Bearing Upgrade Problems

So I got some IGUS l150 filament and printed a pair of IGUS style bearings that fit perfectly and I’m using adjustable pillow blocks, going to give them a try and see how they work out.