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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Attaching light fixtures to trees....
On Oct 21, 2:26*pm, Rich Grise wrote:
Existential Angst wrote: *... How deep can one screw into a tree without doing harm? Zero. Wrap the tree with whatever that stuff is at the garden shop; looks like cardboard, and use spring-loaded clamps to hold up the lamp. But don't penetrate the tree - it's like ringing the dinner bell for diseases and parasites. Good Luck! Rich Hey, you better call anyone that's ever cabled a tree and let them know of the dangers. http://www.thisoldhouse.com/toh/askt...597909,00.html |
#2
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Attaching light fixtures to trees....
I am (today) in Williamsburg, VA, hauling the family behind for an "educational experience". It's our fifth or sixth trip in the last 15 years (yeah... I know). The historic district is an intensely-protected area in terms of both structural and horticultural preservation. They cry crocodile tears over a lost tree, and they've got some really well-qualified arborists working the district. You see hundreds of trees with little colored tags indicating the type and date of various treatments or inspections. Here, they lag-bolt equipment right into the trunks. I cannot say what the material of the bolts is, but suspect it's not a bronze (copper, toxic) or galvanized (zinc chloride, also toxic). So that leaves elemental iron, steel, or a corrosion-resistant steel. Iron and unprotected steel don't last long in a continously wet, unprotected condition. I saw this thread before we went hiking down Duke of Glouster Street today, and took care to note how many fixtures are mounted on living trees. There are a lot - hundreds of electrical cables, lightning rod cables, and speaker cables and boxes. I don't think they'd do this if there were significant chances of harming them. LLoyd |
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