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  1. Raven

    Treemotion evo bridge conversion

    Since all the wear parts are designed to wear out and be replaceable ($) over time and the core unit has a recommended useable life of 5 years I feel you'd get the best value by simply buying the whole thing brand new. Mine is now over five years old and I've redone hip-leg connectors three...
  2. Raven

    see you in the trees...RIP Oakwilt :(

    RIP my friend. I regret not meeting you in person, I have always respected your input and insight here. Sad news indeed :(
  3. Raven

    Tree worker pinned in bucket

    Thanks for sharing. I'm glad the guy is gonna be ok, could have been a far worse outcome. Rigging point failure is a far too common occurrence. We need more training on how to curb the rush mentality, slow down and think more, take smaller pieces if needed, come back in one piece tomorrow.
  4. Raven

    Z133?? OSHA?? What are the actual LAWS?

    https://www.osha.gov/SLTC/treecare/standards.html ANSI Z-133 is an industry specific voluntary standard. OSHA 1910 are a set of mandatory workplace rules and regulations that are kept intentionally vague in order to create a somewhat level playing field for all companies, i.e.: The OSHA general...
  5. Raven

    Arbortec Scaffel light sizing

    Those boots are great! And the sizing runs true, a 10 is a 10 is a 10. Just like my Asolos and Carolinas. I would order with confidence. Enjoy
  6. Raven

    Anyone keep a 'rigging work-book'/binder? What do you keep in it? About to go print HSE668 for mine :P

    The Art and Science of Practical Rigging It's for advanced users but it's almost all in there. Just find a good mentor to show you the advanced stuff I admire your enthusiasm I hope you are successful.
  7. Raven

    Q('s) on kick-back, especially in-canopy / top-handled saws

    Maybe the most scary and vulnerable moments are when aloft with a spinning chain near soft body parts. The key for me has been to shift my mental focus from production to self preservation - it's like a switch that goes on when I disengage the chainbrake. There are so many things to check off...
  8. Raven

    This is the Akimbo

    Not too elegant yet but it eliminates the flop when using MRS. The butterfly in the e2e keeps the legs spread nicely around the Akimbo.
  9. Raven

    Do you use a chain cover or protector on your climbing saw when you are in the canopy?

    Been doing that for years. Got sick of chain marks in my boots, pants, ropes, thin barked trees, etc. It's not really practical on removals where you have lots of cuts to make but on prunes I always use one, got some of my buddies ands co-workers doing it too so can't be a totally crazy idea.
  10. Raven

    Is my tree dying?

    https://levytreecare.com/ These the folks to help you, tell 'em I sent ya;). Don't give up on the tree yet, those things are hard wired for survival.
  11. Raven

    Best Mechanical Devices

    Akimbo for everything
  12. Raven

    Sugar maple - interveinal necrosis with little chlorosis

    Is that possibly a symptom of V wilt?
  13. Raven

    Heart Rot in Bur Oak (pic heavy)

    I did not find any black shoestring rhizomorphs under the bark, just the pale white creepy things on the roots. The decayed material is actually brown in color (brown rot?) and the white stuff is actually mycelium - can someone give me a gradeschool explanation of the difference between...
  14. Raven

    Heart Rot in Bur Oak (pic heavy)

    More random dissection pics. I was able to push the fiberglass rod about 10 cm into the heart of the "good" or remaining lead. Precision measurement of mycelium in a radial crack More precise measurements: And custom core sampling technique:
  15. Raven

    Heart Rot in Bur Oak (pic heavy)

    The stump:
  16. Raven

    Heart Rot in Bur Oak (pic heavy)

    This is the actual inclusion between the codoms, now packed full of mycelium And seen here looking down at the stump, the Lincoln head is at the center of the lost twin
  17. Raven

    Heart Rot in Bur Oak (pic heavy)

    Here's some more of the dissection showing where the lost twin broke off many years ago
  18. Raven

    Heart Rot in Bur Oak (pic heavy)

    Here's my core sampling technique, not very scientific but it gave me some idea of what's inside. I just had an assistant catch the chips as the auger bit pulled them out.
  19. Raven

    Heart Rot in Bur Oak (pic heavy)

    Here we can see some creamy white tendrils of mycelia creeping downward: And drilling reveals punky brown mush in the middle of the root:
  20. Raven

    Heart Rot in Bur Oak (pic heavy)

    I think the black in the picture there is just dirt packed in. Good eye though, I had not heard of Xylaria. My research (limited) has indicated either Armillaria mellea or Innotus andersonni - mycologists please jump on me for the stretch. Here's some more interesting pics finally- I keep...

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