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      Abbreviated rules   07/28/2017

      Underdawg did an excellent job of explaining the rules.  Here's the simplified version: Don't insinuate Pedo.  Warning and or timeout for a first offense.  PermaFlick for any subsequent offenses Don't out members.  See above for penalties.  Caveat:  if you have ever used your own real name or personal information here on the forums since, like, ever - it doesn't count and you are fair game. If you see spam posts, report it to the mods.  We do not hang out in every thread 24/7 If you see any of the above, report it to the mods by hitting the Report button in the offending post.   We do not take action for foul language, off-subject content, or abusive behavior unless it escalates to persistent stalking.  There may be times that we might warn someone or flick someone for something particularly egregious.  There is no standard, we will know it when we see it.  If you continually report things that do not fall into rules #1 or 2 above, you may very well get a timeout yourself for annoying the Mods with repeated whining.  Use your best judgement. Warnings, timeouts, suspensions and flicks are arbitrary and capricious.  Deal with it.  Welcome to anarchy.   If you are a newbie, there are unwritten rules to adhere to.  They will be explained to you soon enough.  


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About SySunday

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    Sailing, mountaineering and classic French cars
  1. I made may yearly YouTube, this one of my 2017 summer Trip: A 23 day, 1800 miles singlehanded sailing trip with Marsvin Sunday. From IJmuiden to Faeroer and Shetland and then back via Shetland to the Netherlands again.
  2. Block with carbon sheave

    Here you see a young girl showing all details of a pulley rotating on a rope axle. This YouTube was posted in October 2013
  3. Best Navigation App for GPS enabled ipad

    Navionics is junk: meant for leisure fishers. No nmea over WIFI, no AIS overlay, foolish (even dangerous?) autoroute function, foolish (even Dangerous?) crowd-sourced depth contours. serious stuff for fishermen, much bigger market..
  4. Low Friction Ring Anarchy

    Here a picture of an optional 3D printed part in PA Carbon, which I intend to make for RAB80; 100; 125 and 160 (number for mm dis of sheave)
  5. Low Friction Ring Anarchy

    Here pictures of my current development. RAB100; 5AB60: RAB 60; 50 ;45;
  6. Low Friction Ring Anarchy

    Rasputin, I don’t exactly understand your question.. I “think” it is not possible to download the file from the link, but if you can: feel free to do so. Still I think de model there is only a render of my original stl file, a visual representation, isn’t it?
  7. Low Friction Ring Anarchy

    Yes indeed: 3D print in SLS polyamide with UV coating for the “house”, al7075 with ptfe impregnated hard anodized and crazy strong dyneema loop
  8. Low Friction Ring Anarchy

    Both do have the “V” shape
  9. Rotary cutters

    I used a heavy duty rotary cutter on plexiglass (polymethylmetacrylate) successfully for a project which needed cutting lots of cuben-fiber laminate, which is composed of dyneema laminated to Mylar and difficult to cut with scissors
  10. Low Friction Ring Anarchy

    Yes; research. The V-shape showed by far more efficient. The U-shape tends to have more friction with increased loads, as opposed to the U-shape which retains a very good effiency, especially so with high loads. Interestingly the B.L. of this kind of use of combination of loop with LFR is mainly caused b’y the B.L. of the dyneema loop. the last months I designed for my own use (and hobby) a series of contraptions which I call “Rope Axle Blocks”, or RAB’s, comprising of blocks with 45, 50, 60, 80 and 100 mm diameter sheaves. As a joke I also made a one-off with a 160mm sheave. here a link to a 3D-render of “Rab100”, which has a calculated B.L. of mulch more than 5000DaN: http://a360.co/2ym91uc
  11. Block with carbon sheave

    I agree! Watch this topic the weeks weeks
  12. Block with carbon sheave

    Can you elaborate on that?
  13. Block with carbon sheave

    And another: Upffront: https://info.upffront.com/blog/running-rigging-sailing-blocks-introducing-the-morph-block
  14. Block with carbon sheave

    Another picture, published by Colligo Marine in their catalogues from 2012 and still on their website: clearly and at least suggesting a low friction ring being used dynamically (rotating):
  15. DIY carbon A-frame bowsprit

    A lot of work indeed. I used 8mm SK78 heattreated Dyneema.