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cuSetanta

HN member
Joined
Wed, Oct 17, 2018, 7:27 AM UTC
HN karma
453
Public activity
85 items

About cuSetanta

I am a Spacecraft Assembly, Integration, & Test (AIT) Engineer based Limerick, Ireland.

Aside from engineering, I have a background in Physics and Astronomy, and I have done my time in IT Support (for my sins).

I love to talk about my work and the space field as a whole, so feel free to message me if you want to know anything.

Feel free to stalk me in these places: https://ptisdall.github.io/ https://www.linkedin.com/in/ptisdall/

Recent public activity

  1. comment
    Comment #42793710

    Any particular reason you wouldnt live in the EU? Aside from the hassle of uplifting ones life and such.

  2. comment
    Comment #41600305

    Their website has a good few images: https://cavernautes.nxigestatio.org/10-aout.html

  3. comment
    Comment #41066743

    There are regulations around de-orbiting your spacecraft at end-of-life, and there are international agreements around weapons in space that refer to the generation of debris. I do…

  4. comment
    Comment #41055186

    As a spacecraft integration engineer, I assure you it is not.

  5. comment
    Comment #41052206

    In-space contactless theories also exist: https://en.wikipedia.org/wiki/Ion-beam_shepherd

  6. comment
    Comment #41048916

    Pah, good irish Whiskey doesn't need to add dirt to add flavour, leave that to the Scotch!

  7. comment
    Comment #40693293

    It will have been tested extensively on ground. They will have identified leaks that are unreported in the media and there are those that have been reported. I have no idea what we…

  8. comment
    Comment #40667756

    A certain leak rate is expected. Helium is a very small atom, and as such is used for leak testing of systems all the time. It is very good at finding gaps in a system. Obviously t…

  9. comment
    Comment #40659944

    Lived in a small town along the Jagst river for a while, which joins the Neckar at Heilbronn. You get Castle Fatigue fairly quickly with how many castles there are around there. It…

  10. comment
    Comment #40659498

    I have moved around a fair bit in the past decade, and for me the most effective movers I have used have been SendMyBag [1]. They are great for shipping luggage and other reasonabl…

  11. comment
    Comment #40572549

    I would also add that the 'New Space' scene is going to be much more willing to accept autonomous manufacturing methods. People like ESA are much much more resistant to change, and…

  12. comment
    Comment #40566035

    Space is very slow to change, and traditional harnessing is going anywhere for the time being. I cannot speak to the newer systems on the market like Starlink, their economies of s…

  13. comment
    Comment #40565685

    Apologies, yes the crimping standard specifically is here: https://ecss.nl/standard/ecss-q-st-70-26c-crimping-of-high-r...

  14. comment
    Comment #40565673

    18 gauge! Thats the big leagues. We rarely go that big, 22awg is big for us. I salute you sir.

  15. comment
    Comment #40565600

    If you have a fish scale, you can see what the retention force is fairly easy. Thats the primary method we use for calibration, albeit with a specific testing hardware.

  16. comment
    Comment #40565579

    The main brands I would see would be Glenair, Souriau, and ITT Canon. Once you are paying the the space quality hardware, its all much of a muchness really. Glenair would probably …

  17. comment
    Comment #40565458

    Crimping is essentially quite a low skill method of connecting wires, when compared to the high skill and experience to do it reliably with solder. I would have a lot of trust in t…

  18. comment
    Comment #40565449

    Hahaha oh yeah, plenty. Recently the Peregrine Lander had wiring issues that led to using the NASA payload to perform the landing. The Vega-C launcher was lost not long ago as two …

  19. comment
    Comment #40565425

    Havent used them much, but I cant see why they would need to be tinned.

  20. comment
    Comment #40558080

    The inspection is primarily visual, to ensure that the stands are well aligned in the crimp, with no protrusions. And to check there is no damage to the wire due to stripping or a …

  21. comment
    Comment #40557704

    Nordlock washers are the best, but they are expensive and a little space inefficient.

  22. comment
    Comment #40557553

    As you say, things shift around, promises get made, everything gets delayed and all of a sudden there is no margin left. Unfortunately AIT has to do all of the hardware work with n…

  23. comment
    Comment #40557515

    At undergraduate level I studied Physics and Astronomy, and then did a research MSc as an optical astronomer, which I hated and drove me away from Physics and Astronomy as a whole.…

  24. comment
    Comment #40557311

    As a spacecraft Assembly, Integration and Test (AIT) Engineer, one of my areas of expertise is harness manufacture and routing. So this naturally involves an awful lot of crimping.…

  25. comment
    Comment #40471221

    Oh hey! Congrats on the awesome mission!