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    Tree Cracking from Freezing

    An older neighbour of mine pruned his youngish maple and the bark split on the sunny side of the trunk. He called it sunscald and said more sap from the sun and quick freezes cracked/popped the bark. He strapped on a cover and the bark healed shut. Wonder how sugar maples get through this in...
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    Nerd Alert

    Woodstove Control I've had two more incidents of bouncing off of and plain exceeding flue temp with 0% air command. One was more smaller (2 to 3" dia.) pieces involved and the other was being too generous with dried bark kindling when I though the regular pieces were on the wet side...
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    Life in the slow lane - screech owl nest box install

    Why did you work in the dark? To not spook the creatures? Sure didn't look blisteringly cold like we've got here right now. Do you have mild Novembers? Good work!
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    Fu*%face Von Clownstick

    We interrupt your regular programming with this emergency mental health bulletin..
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    Powered pole saw with side-cutting blade

    Another gotcha besides the undercut pinch is chain force reaction. I've had aggressive chains chatter in the cut on both short (strimmer fs85) and telescoping HT series pole saws where the normal force is bending the pole and the chain force is axial on the pole. Imagine if both forces were...
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    Stihl gas and oil caps like or loath?

    Sometimes they act up and don't seat/twist correctly which I think is when they break. Or don't grab right. Bar oil overflow/overfill in the flip tab bugs me. I had a few go bad when we lost our last alcohol free gas source and the O rings went funny. Upgrade flip caps seemed to fix that...
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    Powered pole saw with side-cutting blade

    If Winchman pulls this off he may be onto something as I've never seen an example of it before. Maybe it'll work well. I'm of the spirit give it a try. I envision split clamp onto the pole ala Stihl, block extends sideways enough to hold Stihl bar, cover and a custom stub shaft with square...
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    Topping, Pollarding, or what??

    You've got history on your side. This very tree responded to a heavy pollard as you now see it so it ought to again. It may be a different fast growth maple. I think Norways may be prone to overcutting shock. I could be wrong about not-Norway, but you're on safe ground via previous pollard.
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    Powered pole saw with side-cutting blade

    If you want to really commit to the project, you can machine your own housing and transplant the 90 degree gearset straight out of the standard straight pole pruner head, just re-mesh the gear to piace the blade crosswise. Thinking it out, the input spur and shaft is already correctly oriented...
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    Nerd Alert

    CNC circa 1959!
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    There is no "industry"

    Here's one for you on the whole mentorship trades knowledge thing. I remember when robotic welding occurred and it went first by rote - master welder does weld machine measures it and copies it and then by breakdown of process parameters followed by fine tuning by iteration/repetition. Sound...
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    Why Is It So Expensive to Cut Down a Tree?

    I forget the exact slant/definition for retrenchment pruning but it used to be an issue of difference between across the pond. I wonder how it fits in.
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    There is no "industry"

    Whip, zip, whir whir whir reel reel reel. Caught one ;) A caution on the arm lanyard. I used to do that free climbing - its the natural go to. But if you slip your whole body weight could put a yank/torque on a joint like your elbow or shoulder, or put a big lever on say your forearm bone...
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    Nerd Alert

    Muggs a deeper dive into wood products prompted by your post. Good stuff but chemistry makes my head hurt. https://bioresources.cnr.ncsu.edu/resources/adhesiveless-bonding-of-wood-a-review-with-a-focus-on-wood-welding/ It's what you call a review or summary type paper. Thank jeebus for those...
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    Nerd Alert

    Insert/Woodstove Burning Noticed something the other day. We went through a dose of -10 to -15C weather and the insert was running nice, burning well and clean, maybe a bit quick. Then in about ten hrs it suddenly warmed up to -2C and the stove, on the same wood, slowed down, threw less heat...
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    45° limbs

    I did the lurker thing for years too before joining. I think big willows have a relative commonality of structure that's easy to picture. 10' clear spans up leaders fits my commonality recollection, if not further. Smooth bark on later thinner stages of growth also rings a bell - those...
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    Why Is It So Expensive to Cut Down a Tree?

    A small percentage of the expensive pricing out there is the I don't want the job over-bids that get accepted, no?
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    There is no "industry"

    You never mentioned your literary arts degree before ;) Lots of bait n hook lines sure to get responses. Well written! You could link in some of your content geared to hard science to yin/yang with rules/rote/generalisation 'human-i-ficial" intelligence (see what I did there? ;) )
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    Used Saws and Blowers Values

    I'd try a % portion of current retail replacement depending on how used or mint they are. As a buyer I'd be willing to pay a good portion of retail for excellent condition used and mid size saws are $1k+ retail in my neck of the woods. BR600's don't go cheap either. Well used, I guess down...
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    Chipper drum failure

    Might be worth a go at really cleaning everything you can get at to check everywhere for presence of any other cracks forming that haven't actually failed structurally, but are beginning. Part of the design of such things is fatigue # cycles life. Perfectly good design maybe but a critical...

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