printrbot GO – couplers, couplers, couplers

First, a disclaimer: I'm going to talk a lot about something that I will mostly call Z wobble in this post.  I know there are folks in the RepRap community with strong ideas about what Z wobble really means as opposed to Z ribbing or various other artifacts and anomalies found on the vertical sides of printed walls, so please forgive me if I'm using the language incorrectly.  What I will be talking about is the side to side shifting of layers caused (at least in part) by the threaded rods pushing Read more [...]