So, I split my Sketchup file into a couple STLs, then imported them into XYZware.

When I went to print the rails/corners/connectors in the previous log, my printer went BONKERS!!

6 attempts and cleanings and still getting bird's nests. Tried different z-offsets, everything! Only the last time I set my Z, I noticed that the right side of the bed (really the X Axis) is lower. Which would correspond with the right side getting chewed up early on. I remembered that all my successful prints this weekend were smack in the middle of the bed. And small batches. So, I split up my rails into 2 pairs, and it looks good so far.