G. Ross wrote, on Mon, 29 Sep 2014 20:38:51 -0400:

You keep talking about WiFi. More important is a refrig for the beer.
Why would anyone want WiFi in a treehouse. I would think this would be
a place to escape all that stuff.

Good point, but, this *is* the Silicon Valley environ ...

On Mon, 29 Sep 2014 20:38:51 -0400, "G. Ross"
wrote:

You keep talking about WiFi. More important is a refrig for the
beer. Why would anyone want WiFi in a treehouse. I would think this
would be a place to escape all that stuff.

The WIFI is how one orders more beer delivery. Can I help you further?

"Danny D." wrote:


Only that each cable supports 14,000 pounds!
----------------------------------------------
In days of yore I worked as a design engineer for heavy duty
steel mill and foundry equipment, but that was then and this is now.

For designs involving steel cable and human safety, the basic
safety factor applied was 5.

IOW, 14,000/5 = 2,800 pounds as the basic design limit.

Dynamic loading would apply another 50% derate.

IOW, 2,800*50% = 1,400 pounds for dynamic loads.

Based on the posts I have seen, your group needs some
serious help before people get hurt or worse.

Lew Hodgett, PE Retired

On 9/29/2014 7:15 PM, Danny D. wrote:
Who is insulted when I equate Mexico with Spain anyway?
The Mexicans? Or the Spaniards?

(I don't know these things.)


I think everyone's offended, now days.
And you hurt my feelings by writing
that.

..
Christopher A. Young
Learn about Jesus
www.lds.org
..

On 9/29/2014 7:20 PM, Danny D. wrote:

The good news is that, if the whole thing collapses, *he* gets sued, not
me!


Does PRC have more attorneys, or Mexicans?


..
Christopher A. Young
Learn about Jesus
www.lds.org
..

On 9/29/2014 7:42 PM, wrote:
thickness, had fiber put in the concrete, and I put rebar and wire
mesh in place before the pour. It's a good thing too because I later
bought a lathe that covers 10 square feet with the base and sits on 4
9 square inch pads and weighs 8000 lbs.
Eric


Sounds like my elementary school lunch room
monitor woman. We used to call her Bubbles.


..
Christopher A. Young
Learn about Jesus
www.lds.org
..

On 9/29/2014 8:49 PM, Oren wrote:
On Mon, 29 Sep 2014 20:38:51 -0400, "G. Ross"
wrote:

You keep talking about WiFi. More important is a refrig for the
beer. Why would anyone want WiFi in a treehouse. I would think this
would be a place to escape all that stuff.

The WIFI is how one orders more beer delivery. Can I help you further?

With your antenna that high, can't you pirate a
signal from a neighbor?


..
Christopher A. Young
Learn about Jesus
www.lds.org
..

On Mon, 29 Sep 2014 21:35:11 -0400, Stormin Mormon
wrote:

beer. Why would anyone want WiFi in a treehouse. I would think this
would be a place to escape all that stuff.

The WIFI is how one orders more beer delivery. Can I help you further?

With your antenna that high, can't you pirate a
signal from a neighbor?

Who manages the network?

On 09/29/2014, 5:38 PM, G. Ross wrote:
Danny D. wrote:
8 Snip

At that point, we will be in the "treehouse" which will have a deck and
WiFi and a great open view of the mountains.


8 Snip

You keep talking about WiFi. More important is a refrig for the beer.
Why would anyone want WiFi in a treehouse. I would think this would be
a place to escape all that stuff.


Hmm, well with two separate cables your power requirements are fine,
just run them on 24VAC @ 50A (120VAC @ 10A equivalent) and then use step
up transformer or AC to DC regulators to power everything in the tree
house. No unsightly wires!

John :-#)#

--
(Please post followups or tech inquiries to the 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."

Lew Hodgett wrote, on Mon, 29 Sep 2014 18:29:57 -0700:

IOW, 14,000/5 = 2,800 pounds as the basic design limit.

Times two cables, which is 5,600 pounds, at least.

On 09/29/2014, 8:37 PM, Danny D. wrote:
Lew Hodgett wrote, on Mon, 29 Sep 2014 18:29:57 -0700:

IOW, 14,000/5 = 2,800 pounds as the basic design limit.

Times two cables, which is 5,600 pounds, at least.


My last comments - this is not looking so good..

Bending a cable around a support weakens the cable - there is a formula
for that:

http://unirope.com/products/slings/w...ling-capacity/

So that derates the cable strength from 10% to 60% depending on the
curve. Note too that they are using wooden standoff/chocks to hold the
wire, I hope they chamfered a notch - but in any case the load is not
consistent on the tree, rather it is concentrated on only a few of those
wooden chocks. This is a derating aspect too.

Looking at pictu

https://c3.staticflickr.com/3/2944/1...3de04150_c.jpg

It looks like the cable does a bit of a sharp bend where it leaves the
standoff...this is potentially a real problem - kinks are possible. The
pinching of the cable at the clamps also derates the cable strength...

Wire Rope is certainly varied in structure. However I do keep seeing the
1:5 load factor (1/5 of rating) in various Wire Rope 101 pamphlets...

It does appear that the folks selling wire rope are only too happy to
advise in its use - your friends would be advised to show them the
proposal for comment before they put too much weight on these wire ropes.

John

--
(Please post followups or tech inquiries to the 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 Sun, 28 Sep 2014 12:34:27 -0700, Dan Coby wrote:

On 9/28/2014 9:50 AM, Danny D. wrote:
... snip


On the big tree, 125 feet away, we will add a wraparound additional
steel cable, so that the middle also has two cables.

... snip


Any other tips are welcome, as we're just now at the stage where
we have the ability to build the 125 foot long bridge starting
about 15 feet up in a pine, and then going straight across a
steep slope through the set of two redwoods, and then on to the
really big redwood 125 feet down the slope.

The treehouse will be in the middle of the bridge.


Are you saying that the tree house will be in the middle of a 125 foot
suspension bridge. How much will the tree house weigh when fully loaded
and do you have any idea of the forces that may be in the cables?


Dan

You better check it. Wind loads can exceed the dead loads by many times.
Wind loads may be the real issue.

?-)

On 2014-09-30, Oren wrote:
On Mon, 29 Sep 2014 23:38:14 +0000 (UTC), Grant Edwards
wrote:

Calling a Mexican a Spaniard is like calling somebody from the US
"English" or "British". Rather than being insulted, I think people
are just going to be puzzled over where you've been for the last 250
years.

Anything wrong with calling a 1980 Mariel Cuban prisoner a "Beaner"?

That's generally considered offensive, racist, and ignorant.

They love black beans and rice. They didn't seem to be offended.

Perhaps they have better manners.

--
Grant Edwards grant.b.edwards Yow! This PORCUPINE knows
at his ZIPCODE ... And he has
gmail.com "VISA"!!

Grant Edwards wrote:
On 2014-09-30, Oren wrote:
On Mon, 29 Sep 2014 23:38:14 +0000 (UTC), Grant Edwards
wrote:

Calling a Mexican a Spaniard is like calling somebody from the US
"English" or "British". Rather than being insulted, I think people
are just going to be puzzled over where you've been for the last 250
years.

Anything wrong with calling a 1980 Mariel Cuban prisoner a "Beaner"?

That's generally considered offensive, racist, and ignorant.

No - that's considered a Politcally Correct way of thinking. It's neither
ignorant, nor is it offensive, unless someone like yourself decides to
declare it so. But - your declaration does not make it reality. I would
argue that regardless of the PC community, things like this are not at all
"generally considered" to be the way you view them.


--

-Mike-

On 9/29/2014 6:02 PM, Oren wrote:
On Mon, 29 Sep 2014 19:25:42 +0000 (UTC), "Danny D."
wrote:

I'm just the free help (we
all have Spanish nicknames when we do free labor. I'm "Rodruigo", and my
wife's nom-de-labor is "Marisol", for example).

I keep threatening that I'm gonna call OSHA on them if I fall or if they
don't provide cold soda (the free soda has been warm, to date).

It's an insult to call a Mexican a Spaniard!


Why did you say that? Having a Spanish nick name does not assess any
nationality at all.

On Tue, 30 Sep 2014 14:05:29 -0500, Leon lcb11211@swbelldotnet
wrote:

On 9/29/2014 6:02 PM, Oren wrote:
On Mon, 29 Sep 2014 19:25:42 +0000 (UTC), "Danny D."
wrote:

I'm just the free help (we
all have Spanish nicknames when we do free labor. I'm "Rodruigo", and my
wife's nom-de-labor is "Marisol", for example).

I keep threatening that I'm gonna call OSHA on them if I fall or if they
don't provide cold soda (the free soda has been warm, to date).

It's an insult to call a Mexican a Spaniard!


Why did you say that? Having a Spanish nick name does not assess any
nationality at all.

I was suggesting to Danny, based on my experience, that Mexicans do
like to be called Spaniards. They take is personally. I can't speak
for every Mexican, just what I have observed. Call a Mexican a
"wetback" - they don't seem so bothered by it.

On Tue, 30 Sep 2014 12:32:29 -0700, Oren wrote:

It's an insult to call a Mexican a Spaniard!


Why did you say that? Having a Spanish nick name does not assess any
nationality at all.

I was suggesting to Danny, based on my experience, that Mexicans do
like to be called Spaniards. They take is personally. I can't speak
for every Mexican, just what I have observed. Call a Mexican a
"wetback" - they don't seem so bothered by it.

Leon,

Read that as "do not like to be called Spaniards"...

"Danny D." wrote:

Only that each cable supports 14,000 pounds!
----------------------------------------------

"Lew Hodgett" wrote:

In days of yore I worked as a design engineer for heavy duty
steel mill and foundry equipment, but that was then and this is now.

For designs involving steel cable and human safety, the basic
safety factor applied was 5.

IOW, 14,000/5 = 2,800 pounds as the basic design limit.

Dynamic loading would apply another 50% derate.

IOW, 2,800*50% = 1,400 pounds for dynamic loads.

Based on the posts I have seen, your group needs some
serious help before people get hurt or worse.

Lew Hodgett, PE Retired
-----------------------------------------------------
What I forgot to include was that the above design loads are for
tensile loads.

Bending loads require a further derate.

The reader is left to determine the value from any decent
structural engineering text.

And now you know one of the reasons why I'm retired.

Lew Hodgett, PE Retired

On 9/30/2014 8:37 PM, Lew Hodgett wrote:
IOW, 14,000/5 = 2,800 pounds as the basic design limit.

Dynamic loading would apply another 50% derate.

Bending loads require a further derate.

The reader is left to determine the value from any decent
structural engineering text.

And now you know one of the reasons why I'm retired.

Lew Hodgett, PE Retired


Sounds like not much fort, at derate we're going.

--
..
Christopher A. Young
Learn about Jesus
www.lds.org
..