I always enjoy your posts, Dave. They really take on a problem and put into real world context without any of the hype or confusion that can cloud the issues. This is a perfect example. Maybe not any "rocket science" takeaway here, but some real sound advice for engineers on the common traps most fall into when trying to come to the root cause of a part failure or better yet, avoiding failure to start with.
Linear guides are one of the most important components required for the development of automated or computer-controlled equipment. Aluminum profile extrusions, used for these guides in machine design, can enable designed-in functional features.
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