I recently had a project go wrong because of my ball nut getting clogged in the gantry block. Thankfully this forum had some information on how to fix it myself before having to contact Onefinity. I made a video to hopefully help anyone out there that runs into the same problem as me.
Lesson learned: Use dust collection and clean out the ball nuts every few months. I shoot a lot of videos for youtube and instagram so I often take my dust boot off to shoot a time lapse- this sends a lot of dust on the ball screw that ends up getting packed into the ball nut. Thankfully its a very easy fix.
Wondering if Onefinity will eventually come out with some simple wipers or whisker biscuits to put on the openings of the gantry blocks to help keep this issue in check.