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  1. cbachmann

    Load Sharing Forces at Support Points

    Fair comment. Just ain't the case in this tree. Much of the canopy was above a corrugated plastic patio roof and a fabric car shelter. No way I'm dropping 2" cuts over those fragile materials. Plus, we were reducing drooping tips at the bottom of the canopy, but still 30' off the ground...
  2. cbachmann

    Load Sharing Forces at Support Points

    Good point. I'm typically hesitant about basal anchors for more than access due to force multiplication and the risk of inexperienced ground crew.
  3. cbachmann

    Load Sharing Forces at Support Points

    Thanks for starting a great thread @yoyoman. I've climbed a lot of DdRT but am newer to SRT and have been thinking a lot about redirects. One of the key points I'm seeing in this thread - perhaps not specifically called out - is the concept of "force distribution vs multiplication." Said...
  4. cbachmann

    ATL tree veteran paralyzed after 60ft fall

    Does anyone test TIPs differently for canopy vs basal anchoring? How about for ascent only vs extended working (eg. limb walking) TIP. Curious your thoughts.
  5. cbachmann

    Aww... Dammit!

    For SRT canopy anchors, I've switched to using an adjustable RnR with a butterfly jammed against the small ring. Chokes well. Works in a crotch or straight stem. Retrievable. Is anyone else using that RnR configuration? I also have a RnR with a caribiner on one end (instead of a large...
  6. cbachmann

    TIP Failure

    We were just talking about TIP failures at our morning briefing and my boss shared a conversation with Julian Dunster (author of TRAQ manual) regarding the impact of drought stress on wood characteristics, specifically strength and branch angles. Key points were drouggt stress weakens limbs and...
  7. cbachmann

    Arborist go bag.

    Any 70 liter haul bag will do. Metolius is nice. It'll fit all your stuff and pack to about 50lbs for airplane travel.
  8. cbachmann

    Can you guesstimate how much safer you are?

    Working for a company that values safety above production - and bids jobs accordingly - is crucial to employee welfare. Training crews to be efficient is important to profitability. But any company that directly or indirectly encourages employees to cut corners on safety in order to be faster...
  9. cbachmann

    Show off them splices

    Pic
  10. cbachmann

    Show off them splices

    Try inserting your awl through the cover and core on the "standing" side of the eye, just above (eye side) of the throat and pulling against your anchor. Also, use a small diameter Prusick cord to pull more cover slack. These two should do it. Also, keep a biner in the eye, so you don't...
  11. cbachmann

    Show off them splices

    Nice splice work. However, I strongly second @bonner1040 regarding the side plates and their non-compatibility with textiles. A Pinto-type pulley would be the right choice.
  12. cbachmann

    Show off them splices

    Yes, those are the same insts that I was referencing. Regarding the temp warning...uhhhh... I've got nothing. Kinda interesting.
  13. cbachmann

    Your least favourite tree to climb, and why.

    Maybe I missed it, but it seems that nobody has mentioned the frustration of climbing "trees" grown as hedges. Since moving to Seattle, I've been introduced to Leyland Cypress hedges and - best of all - English Laurel hedges that have to be climbed and then "walked" across the top because...
  14. cbachmann

    srt cut rope

    SRT is like any other tool. It has a purpose and provides great benefits, but only when used safely and correctly. And climbing SRT doesn't eliminate the need to make entry to the tree from a suitable, reliable branch union and then rope advance to your final and INSPECTED tie in point. To...
  15. cbachmann

    Work Photos

    It's all you, buddy. You do the bees, and I'll bring the beer. Go get 'em.
  16. cbachmann

    srt cut rope

    On the subject of SRT anchors... https://www.facebook.com/ClimbingArborist/posts/981049628678725 There was an insistent at the Masters Challenge at the Rocky Mtn Comp. Luke Glines had his TIP break out and fell 25' during his ascent into the tree. He was on a basal anchor. However, it's...
  17. cbachmann

    Show off them splices

    Yep. Standard double-braid. Check out Teufelberger's instructions for some cool tips. Just spliced my new hitch cord today.
  18. cbachmann

    Work Photos

    Another big oak day in Seattle with some classic PNW weather. Luckily the rain tapered off and stopped as we ascended into the tree. But the darn lichen and miss holds moisture like crazy. Still not used to that out here. Pruned this 106' Shingle Oak over a fancy house and garden. Not...
  19. cbachmann

    Rope Length

    Great question. A quick list of "problems" might include... - insects/animals (per @ROYCE) and potential allergic reaction - chainsaw injury, such as when making an awkward cut with a big saw and suddenly gaffing out or kick-back with a top-handle saw - crushed hand, arm, leg, torso, etc. if a...
  20. cbachmann

    Carabiner gate gripper

    Closing the loop.... I tried a 1/2" segment of big shot tubing. So far so good. Thanks for the input, folks.

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