Cheers for the info Dan! Was planning on 300x300 initially, however some of the logic/rationale you’ve shared in multiple topics helped influence me towards ~250x250. I already have a 300x300 3D printer, the largest thing I’ve printed lots of was some 240x240 parts, but even that should be partially CNC’d in the future. Want this MP3DP to be much faster and more capable than my existing one, so building a smaller size will help.
Also, haven’t built a 3D printer from parts before, so am resisting the strong urges to experiment up front. Mostly stock build reduces risk of encountering time consuming issues. My goal is to get baseline functionality working asap, and learn a bunch along the way. After that will reflect, assess and decide what to explore/mod further. My personal deadline is to finish before I get distracted/interested with some other shiny project