Thanks, I have checked that one out! I was looking for something like a “pre-production checklist.” Something really procedural like “clear bed”, “insert collet”, “fixture material”, “don eye pro”. Seems silly, I know, but all the mistakes I’ve made so far were missing really simple steps I missed due to the excitement of wanting to make something I spent time designing. If its not a thing maybe I will try to make one and share it once I learn a bit more. That and a regular PM cycle, such as “After every 5 hours of milling re-check v wheels, belt tightness, etc.” “Every 10 hours re-check gantry squareness, Z tram, etc.” “After 50 hours, complete teardown, cleaning, re-tension all belts, etc.” “post crash check the following prior to running…” and then maybe an hours log to help facilitate the tracking.