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  1. Casa250

    (mechanical) design errors / flaw compilation

    Hi all, there seems to be lots of mechanical elements books on how to design systems, however, I rarely find examples of design errors and what-not-do-dos. I find that often looking at what-not-to-do is even more helpful in avoiding them. Does anyone has good examples to show here? I am mainly...
  2. Casa250

    Check Dimension

    Hello, it seems a simple question but I fail to find any concrete answers on this online. If a drawing show a dimension with rounded brackets it is referred to to be a "checking dimension". When "100%" is added then this would mean that all parts are checked, so 100%, correct? When "SPC" is...
  3. Casa250

    Risk of machining alu die castings

    Hi all, among our working colleagues I often hear that sealing areas on alu die castings should not be machined as this could expose potential casting imperfections thus leading to leakage. It would be better to keep the raw casting surfaces for that matter. Is that a justified concern? Thanks!

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