They want ten grand to chop the tops of three pines, so I got to (uh oh)
thinking what if I could put a laser on a drone. Then I realised the power is
too much, so you would need a cable. The power supply could be to heavy for
the drones they sell at BJ. Could you do it from ten feet away or would you
lose focus/strength? What do such devices cost anyway? Industrial ones can be
pretty costly. Probably a pipe dream, but worh asking. Might be able to avoid
it all by asking the power company to do it. Besides, I just ordered a
replacement blade for my Fiskars tree pruning pole (but it is still not easy
to get to the desired point. Apparently they foresaw tree pruning lasers at
the 1964 World's Fair (for which my house was part of the parking).

- = -
Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist
http://www.panix.com/~vjp2/vasos.htm
---{Nothing herein constitutes advice. Everything fully disclaimed.}---
[Homeland Security means private firearms not lazy obstructive guards]
[Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos]

On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to (uh oh)
thinking what if I could put a laser on a drone. Then I realised the power is
too much, so you would need a cable. The power supply could be to heavy for
the drones they sell at BJ. Could you do it from ten feet away or would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.

On 11/01/2016 3:04 PM, Clifford Heath wrote:
On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to
(uh oh)
thinking what if I could put a laser on a drone. Then I realised the
power is
too much, so you would need a cable. The power supply could be to
heavy for
the drones they sell at BJ. Could you do it from ten feet away or
would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.


Indeed, easier to simply put a chain saw on a drone (really ducking!).

John :-#)#

--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

On Tue, 1 Nov 2016 16:45:47 -0700, John Robertson
wrote:

Indeed, easier to simply put a chain saw on a drone (really ducking!).
John :-#)#

Done:
https://www.youtube.com/watch?v=6Viwwetf0gU

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On 01/11/2016 23:45, John Robertson wrote:
On 11/01/2016 3:04 PM, Clifford Heath wrote:
On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to
(uh oh)
thinking what if I could put a laser on a drone. Then I realised the
power is
too much, so you would need a cable. The power supply could be to
heavy for
the drones they sell at BJ. Could you do it from ten feet away or
would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.


Indeed, easier to simply put a chain saw on a drone (really ducking!).

John :-#)#


I would use a drone to loop a fishing line nylon, up around the tree at
required height, and down . Use that to run a rope around the same path
.. Bang a good ground anchor in the ground and winch the top of the tree
over. Then make some sort of running guide to fix a chain saw to a rope
and pull that up the rope while it is running, while I'm standing well
away of course. Require some extra ropery to get the angles and cutting
progress though

On 11/01/2016 06:04 PM, Clifford Heath wrote:
On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to
(uh oh)
thinking what if I could put a laser on a drone. Then I realised the
power is
too much, so you would need a cable. The power supply could be to
heavy for
the drones they sell at BJ. Could you do it from ten feet away or
would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.


It would be way cheaper to have the drone string some det cord. An old
ordnance guy my dad knew used to do that--works great at smallish diameters.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

On 02/11/2016 14:33, Phil Hobbs wrote:
On 11/01/2016 06:04 PM, Clifford Heath wrote:
On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to
(uh oh)
thinking what if I could put a laser on a drone. Then I realised the
power is
too much, so you would need a cable. The power supply could be to
heavy for
the drones they sell at BJ. Could you do it from ten feet away or
would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.


It would be way cheaper to have the drone string some det cord. An old
ordnance guy my dad knew used to do that--works great at smallish diameters.

Cheers

Phil Hobbs


Pull the top of the tree over , as detailed earlier, then it would be
easier to use such cutting wire close to vertical action, much safer
than chain saw whirlygigs

On Wed, 02 Nov 2016 15:12:21 +0000, N_Cook wrote:

On 02/11/2016 14:33, Phil Hobbs wrote:
On 11/01/2016 06:04 PM, Clifford Heath wrote:
On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to
(uh oh)
thinking what if I could put a laser on a drone. Then I realised the
power is
too much, so you would need a cable. The power supply could be to
heavy for
the drones they sell at BJ. Could you do it from ten feet away or
would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.


It would be way cheaper to have the drone string some det cord. An old
ordnance guy my dad knew used to do that--works great at smallish diameters.

Cheers

Phil Hobbs


Pull the top of the tree over , as detailed earlier, then it would be
easier to use such cutting wire close to vertical action, much safer
than chain saw whirlygigs

That's how a pine tree near my house was done a few weeks ago. It was
pulled over by a machine. I haven't a clue how the pull cord got
attached so high up the tree.

Steve

--
Neural Network Software for Windows http://www.npsnn.com

On 02/11/2016 15:24, Stephen Wolstenholme wrote:
On Wed, 02 Nov 2016 15:12:21 +0000, N_Cook wrote:

On 02/11/2016 14:33, Phil Hobbs wrote:
On 11/01/2016 06:04 PM, Clifford Heath wrote:
On 02/11/16 07:54, wrote:
They want ten grand to chop the tops of three pines, so I got to
(uh oh)
thinking what if I could put a laser on a drone. Then I realised the
power is
too much, so you would need a cable. The power supply could be to
heavy for
the drones they sell at BJ. Could you do it from ten feet away or
would you
lose focus/strength?

I think the hassles getting aerospace clearance would make it uneconomic.


It would be way cheaper to have the drone string some det cord. An old
ordnance guy my dad knew used to do that--works great at smallish diameters.

Cheers

Phil Hobbs


Pull the top of the tree over , as detailed earlier, then it would be
easier to use such cutting wire close to vertical action, much safer
than chain saw whirlygigs

That's how a pine tree near my house was done a few weeks ago. It was
pulled over by a machine. I haven't a clue how the pull cord got
attached so high up the tree.

Steve


The traditional way is with a bow and arrow and fishing line, or arrows
usually before one goes in the right path

On 11/01/2016 7:36 PM, Jeff Liebermann wrote:
On Tue, 1 Nov 2016 16:45:47 -0700, John Robertson
wrote:

Indeed, easier to simply put a chain saw on a drone (really ducking!).
John :-#)#

Done:
https://www.youtube.com/watch?v=6Viwwetf0gU


OKAY, that is scary (new horror film coming?)...however the drone
killers should be able to take it down. Interesting that even balloons
were sufficient - so one could launch small weather balloons that have a
maximum height (pin pop by altitude) around a drone? Safe at airports...

John :-#)#

--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

N_Cook wrote:



I would use a drone to loop a fishing line nylon, up around the tree at
required height, and down . Use that to run a rope around the same path
. Bang a good ground anchor in the ground and winch the top of the tree
over. Then make some sort of running guide to fix a chain saw to a rope
and pull that up the rope while it is running, while I'm standing well
away of course. Require some extra ropery to get the angles and cutting
progress though
You can take a chain saw chain and push out one pin. Then fashion ends to
the chain. Pull it up to the branch with your rope and then pull back and
forth to cut the branch. They actually sell these commercially, they have
a very light line with a weighted bag on the end of the heavier rope.

Jon

On Wed, 2 Nov 2016 13:55:40 -0700, John Robertson
wrote:

Interesting that even balloons
were sufficient - so one could launch small weather balloons that have a
maximum height (pin pop by altitude) around a drone? Safe at airports...

Those have also been invented and are known to work well. They're
called "barrage balloons".
https://www.google.com/search?q=barrage+balloon&tbm=isch
Unlike the drone propellers getting tangled with the rubber balloons,
the WWII version had the German bombers smashing into the tethering
cable, suspended nets, or sometimes cables strung between balloons.


--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On 11/02/2016 07:57 PM, Jeff Liebermann wrote:

Interesting that even balloons
were sufficient - so one could launch small weather balloons that have a
maximum height (pin pop by altitude) around a drone? Safe at airports...

Those have also been invented and are known to work well. They're
called "barrage balloons".
https://www.google.com/search?q=barrage+balloon&tbm=isch
Unlike the drone propellers getting tangled with the rubber balloons,
the WWII version had the German bombers smashing into the tethering
cable, suspended nets, or sometimes cables strung between balloons.

I remember a barrage balloon site just across the fence from the farm
where I grew up on the North Downs in the UK, but I don't recall hearing
whether that particular installation brought down a German plane. My
mother and I went to stay with family far away from London for part of WWII.

Perce

On Wed, 2 Nov 2016 20:45:29 -0400, "Percival P. Cassidy"
wrote:

On 11/02/2016 07:57 PM, Jeff Liebermann wrote:

Interesting that even balloons
were sufficient - so one could launch small weather balloons that have a
maximum height (pin pop by altitude) around a drone? Safe at airports...

Those have also been invented and are known to work well. They're
called "barrage balloons".
https://www.google.com/search?q=barrage+balloon&tbm=isch
Unlike the drone propellers getting tangled with the rubber balloons,
the WWII version had the German bombers smashing into the tethering
cable, suspended nets, or sometimes cables strung between balloons.

I remember a barrage balloon site just across the fence from the farm
where I grew up on the North Downs in the UK, but I don't recall hearing
whether that particular installation brought down a German plane. My
mother and I went to stay with family far away from London for part of WWII.

That was before my time. As I understand it, the barrage balloon were
modestly effective against low flying threats, such as V1 flying bombs
and JU87 dive bombers. They did little against high flying threats,
specifically high altitude bombers, and nothing against the V2 rocket.
Some details and numbers:
http://www.airpower.maxwell.af.mil/airchronicles/apj/apj89/sum89/hillson.html

For defense against low flying chainsaws, I would recommend simply
suspending any style of entanglement wires from an aerostat
(stationary balloon). It's quite difficult to see small obstructions
from a FPV (first person view) drone. Running into a dangling cable
would destabilize the drone, even if the turbines (propellers) were
shrouded. If sucked into the chainsaw, the wires would become
entangled in the cutting mechanism. The dangling wires could also be
configured as "aerial mines" which would explode on contact.

However, all this requires an unobstructed air space to deploy the
aerostats. Using this system to defend a stand of timber might be
problematic.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Mpfffff. Either a 12-gauge for when the drone is moving at treetop level, or a brush gun (35 Remington or 45-70) for when it is hovering. Positive, and low-tech. However, this may be an uniquely American response. Brits, on the other hand do have their Purdys.

Peter Wieck
Melrose Park, PA

In article ,
says...

... Brits, on the other hand do have their Purdys.

Peter Wieck
Melrose Park, PA

As in "The Avengers"?

Mike.

As in the Avengers, certainly. Hand made shotguns in the 5 and 6 figure range.