"Ernie Leimkuhler" wrote in message
...
In article , bob1770
wrote:

Ernie Leimkuhler wrote in message
...
In article , Jon Elson
wrote:

Ernie Leimkuhler wrote:
My photo gallery is up and running.

Wow, a lot of cool stuff!

Are those garage door springs on the hydraulic press? Those
things snap after so many cycles. And, they are REAL exciting
when they do. I've been in the garage twice when mine let go,
and I was REALLY glad somebody had told me about the safety
cables for them. One time, the whole spring went into a wall
and nearly tore down the whole garage!

Safety cables would help in your design, but I wouldn't want to
be operating the press just inches from those springs if they
let go, safety cable or not!

Just a thought....

Jon


The garage door springs are under very little stress.
The springs on the air-hydraulic jack are compressing the cylinder.
The springs only have to lift the weight of the upper carriage.

I might add some safety cables anyway.

Did you build that mailbox for the local bomb squad! Nice stuff.


It is for a friend who lives in the country.
Identity theft is sweeping Washington state, especially in rural areas
where mailboxes are sometimes miles from a house.

Bomb-shelter mailboxes are getting very popular.
Usually welding to a 10 foot length of 4" pipe driven into the ground.

I used to have problems with local kids playing "mailbox baseball" with my
rural tin mailbox on top of a 4x4 wood post. They would drive by with a
baseball bat whilst hanging out the window. It would usually take one hit
to destroy the box.

I took a brand new mailbox, and lined it with 3/8 plate, and put that on a
pipe. I covered the post with four one by's to make it look like a 4x
post, and set it about 2' into the ground into concrete, which was
intentionally cocked a few degrees. I came by one day to see a new dent in
the mailbox. The plate held up well. I straightened the little metal red
flag. About every couple of years, it would take a new hit, when the
previous mailbox baseball team graduated and a new batch of 16 year olds
would take up the sport.

I would have given 50 bucks to see one of them hit it with a baseball bat.

CLUNK ! ! !

Steve