Recent content by Jack D S

  1. Jack D S

    Surely there must be a telescoping rod, with air lock?

    Good thought, but one of the key functions that my project needs is that the top platform can inherently also tilt at an angle different to the base plate: Pivots and simple locking telescopic rods would be great for this. I'm just surprised to see that there isn't a telescopic rod that locks...
  2. Jack D S

    Surely there must be a telescoping rod, with air lock?

    Yes, thank you for the observation. I have indeed taken that into account. That image was only to explain the general structure. (To counter the racking forces, I am most considering embedding the rods into wide rectangular cartridges. So that their rigid width should prevent side swaying.)
  3. Jack D S

    Surely there must be a telescoping rod, with air lock?

    To answer your questions, I am happy to give (almost) full disclosure here. The project could be akin to a book stand or laptop stand with an elevating platform. The idea is to use these extending rods attached to opposite edges on a pivot. Thus, when the rods extend (along a diagonal) the...
  4. Jack D S

    Surely there must be a telescoping rod, with air lock?

    Agreed, but for this project, that little spring movement is ok. PS. Thanks for the welcome, and for the link. Let me check that out...
  5. Jack D S

    Surely there must be a telescoping rod, with air lock?

    I would've thought such a thing exists, but I can't find any. Have you heard of something like this...? A simple extending telescoping rod, but it is airtight, and at one end, the cylinder can be closed or opened by the user to respectively lock the rod in position, or allow it to...
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