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  1. surveyor

    ART BlackBird for "MRT and SRT"

    Yes It looks very good. Chris, have you seen John's video of the Bulldog Bone in the very first post in that thread ? He demonstrates the minimal sitback well.
  2. surveyor

    ART BlackBird for "MRT and SRT"

    Here is a demonstration video from Arbsession. He says "minimal sitback"
  3. surveyor

    ART BlackBird for "MRT and SRT"

    The upper part does. I believe you could think of the lower bollards acting like the hitch below the RW
  4. surveyor

    ART BlackBird for "MRT and SRT"

    This picture would seem to indicate that the lever is attached to the elongated bollard, and levers it away on a fulcrum on release.
  5. surveyor

    New Ascender from Reg Coates

    I would guess that the black elongated bollard pivots, so that when the device is weighted the rope pivots the top portion and the bottom portion has a clamping action on the bottom portion, then the release handle has an eccentric radius arm that pushes the top part of the elongated bollard...
  6. surveyor

    Useful for moving a hung branch?

  7. surveyor

    Vortex chipper

    This fellow has had experience with chippers and manufacturing since back in the 70's and talks about the Vortex starting at the 14 minute mark.
  8. surveyor

    Vortex chipper

    A friend and local tree service owner was using a vortex chipper at the house yesterday. It has an interesting chipper wheel design.
  9. surveyor

    Compact Bulldog Bone

    Hello John, Good to see your post, well said.
  10. surveyor

    Compact Bulldog Bone

    Just a clarification, back 12 years ago when I made my "pulley rack" and was showing it here on the buzzboard, there were rumors that Petzl was going to release something new. It was shortly thereafter that they released to the public the zigzag, but they had to have been in development even...
  11. surveyor

    Compact Bulldog Bone

    Thanks Kevin, I have always sourced the best materials I can from the US and Japan and the CNC shop in NJ does fine work for me. I think a device is more than the sum of its parts, and the concept is the magic, of which your Rope Wrench is a prime example.
  12. surveyor

    Compact Bulldog Bone

    For those who ask questions about the Bulldog Bone, here is what I send out: The adjustable Bulldog Bone is made from aircraft grade 7075 aluminum, with stainless steel joints and Neptune coated steel friction links. The adjustable bollard is brass, which uses a ss 10-32 machine screw to move...
  13. surveyor

    Compact Bulldog Bone

    Caleb, I do use this forum to keep users up to date on any news regarding the Bulldog Bone, and to answers any questions. As you know, I have never advertised my device in any typical way, and from the get go this endeavor has been word or mouth. My post, which Reg questioned, was made...
  14. surveyor

    Compact Bulldog Bone

    My post is no threat to the airtime of the major manufacturers, indeed I wish them well, past and present. innovation is a wonderful thing.
  15. surveyor

    Compact Bulldog Bone

    The Bulldog Bone would not be what it has become without the input and encouragement of many buzzers.
  16. surveyor

    Compact Bulldog Bone

    Ok, I'm going to plug the Bulldog Bone : ) The Bone is about half the cost of some upstart multicenders, and about half a pound lighter. It does SRT and MRT, midline. It is adjustable, and has an optional swivel integral to the device. all parts are replaceable, and while everything gets...
  17. surveyor

    2 new graduates

    Well, my midline is attached to Huddle House, that is true.
  18. surveyor

    Before ‘SPAM’

  19. surveyor

    Bulldog OAR

    I am currently revisiting the Diggity OAR in this thread, at the request of a Japanese climber who uses one, He requested that I skinny up the elongated bollard, so I currently have on order a skinnier and shorter elongated bollard that can replace the original one. Results are improved with...
  20. surveyor

    2 new graduates

    Here we are, me, my three boys (the first an alumni, now pursuing his masters), my sister, and wife.

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