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  • Users: k05t1ka
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  1. k05t1ka

    PE and P/E

    Hello, everybody. Can anyone help me understand what are the differences between PE and P/E? I cannot find any info on P/E. Is it the same thing as PE? I am asking this because I have two identical car bumpers, one marked with PE (which I know very well) and the other with P/E and I would like...
  2. k05t1ka

    Carbon fiber telescope tube

    Hello, everybody. I am planning to build myself a 80mm refractor telescope and I want to make the tube from carbon fiber composite. What type of lay-up should I use for the composite for maximum dimensional stability? I did't find a clear answer searching in the composite books that I own, so...

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