W
Winfield Hill
Guest
Dropbox? Six-foot drop test. 
--
Thanks,
- Win
--
Thanks,
- Win
G
George Herold
Guest
On Monday, July 22, 2019 at 4:32:08 PM UTC-4, Winfield Hill wrote:
I guy I knew in grad school was an ex navy electronics tech.
When something was not working and we couldn't figure out
what was wrong, he would suggest that we 'float test' it.
George H.
Dropbox? Six-foot drop test.
--
Thanks,
- Win
I guy I knew in grad school was an ex navy electronics tech.
When something was not working and we couldn't figure out
what was wrong, he would suggest that we 'float test' it.
George H.
J
Joerg
Guest
On 2019-07-22 13:31, Winfield Hill wrote:
When I need to test a client prototype for ruggedness I strap it to the
rack of my mountain bike and hammer down a trail. Like this one from
Lotus to Folsom:
https://www.youtube.com/watch?v=l5cjAW_nrl4
If it lives, it's good.
--
Regards, Joerg
http://www.analogconsultants.com/
Dropbox? Six-foot drop test.
When I need to test a client prototype for ruggedness I strap it to the
rack of my mountain bike and hammer down a trail. Like this one from
Lotus to Folsom:
https://www.youtube.com/watch?v=l5cjAW_nrl4
If it lives, it's good.
--
Regards, Joerg
http://www.analogconsultants.com/
J
John Robertson
Guest
On 2019/07/22 1:31 p.m., Winfield Hill wrote:
In my field of jukeboxes (along with other coin-operated toys) the story
was that the best of the manufacturers, back in the 1940s, required that
a jukebox would be packed so that it could fall off a truck loading
dock, while packed in the factory crate, and survive. Roughly 5 feet...
Wurlitzer sure built them tough in those days!
John :-#)#
Dropbox? Six-foot drop test.
In my field of jukeboxes (along with other coin-operated toys) the story
was that the best of the manufacturers, back in the 1940s, required that
a jukebox would be packed so that it could fall off a truck loading
dock, while packed in the factory crate, and survive. Roughly 5 feet...
Wurlitzer sure built them tough in those days!
John :-#)#
A
ABLE1
Guest
On 7/22/2019 4:31 PM, Winfield Hill wrote:
This thought is not with out merit.
While working on customers phone systems, their
were a few extension phones that were not working.
From dead LCD display or would not connect to the KSU.
After checking all the normal stuff such as a bad cord
or a bad jack and other obvious possibilities.
I would tell the customer not to watch the following action.
I would then lift the phone off the desk about 3 feet and just
drop it. A lot of times it would then start to work. Yea!!
If it didn't, I would do the reverse drop test it, where I
would flip it over and drop it again. A few times it would work.
If neither worked, it would either go out for repair or be
"circular filed". I would explain to the customer that they
should NOT attempt since I was trained and qualified to perform
the "drop test".
Sometimes the dumb stuff actually works.
Les
Dropbox? Six-foot drop test.
This thought is not with out merit.
While working on customers phone systems, their
were a few extension phones that were not working.
From dead LCD display or would not connect to the KSU.
After checking all the normal stuff such as a bad cord
or a bad jack and other obvious possibilities.
I would tell the customer not to watch the following action.
I would then lift the phone off the desk about 3 feet and just
drop it. A lot of times it would then start to work. Yea!!
If it didn't, I would do the reverse drop test it, where I
would flip it over and drop it again. A few times it would work.
If neither worked, it would either go out for repair or be
"circular filed". I would explain to the customer that they
should NOT attempt since I was trained and qualified to perform
the "drop test".
Sometimes the dumb stuff actually works.
Les
M
Martin Riddle
Guest
On 22 Jul 2019 13:31:57 -0700, Winfield Hill <winfieldhill@yahoo.com>
wrote:
>Dropbox? Six-foot drop test.
Do airconditioners count?
Funny thing, while putting the window unit in, it pirouetted out on a
corner rotated 90 degrees, slipped out of my grasp, and fell 6' onto
brick pavers.
must have been almost flat with the condensor. Just some minor sheet
metal damage, and a bent corner tube of the condensor.
Been running like a champ all weekend. Have to wait for next year to
say it survived the 6' fall.
Cheers
wrote:
>Dropbox? Six-foot drop test.
Do airconditioners count?
Funny thing, while putting the window unit in, it pirouetted out on a
corner rotated 90 degrees, slipped out of my grasp, and fell 6' onto
brick pavers.
must have been almost flat with the condensor. Just some minor sheet
metal damage, and a bent corner tube of the condensor.
Been running like a champ all weekend. Have to wait for next year to
say it survived the 6' fall.
Cheers
E
ehsjr
Guest
On 7/22/2019 4:56 PM, Joerg wrote:
So is the rider. And the bike.
Ed
On 2019-07-22 13:31, Winfield Hill wrote:
Dropbox? Six-foot drop test.Â
When I need to test a client prototype for ruggedness I strap it to the
rack of my mountain bike and hammer down a trail. Like this one from
Lotus to Folsom:
https://www.youtube.com/watch?v=l5cjAW_nrl4
If it lives, it's good.
So is the rider. And the bike.
Ed
B
Bill Sloman
Guest
On Tuesday, July 23, 2019 at 9:09:07 AM UTC+10, John Robertson wrote:
When I was working at ITT-Creed, from 1979 to 1982 - they had been making Telex machines since the 1930's and were trying to move into communicating word processors that would exploit the Teletex protocol (which was actually used for few years in Sweden and Germany until e-mail replaced it) - I once got to hear an ITT production guy talking about the balance between making a machine more robust, and paying for bulkier and more elaborate packaging that allowed the machine in the package to move far enough to decelerate more slowly the outsides of the package when the package got dropped onto a hard surface.
They manufactured and shipped in high enough volumes that it was worth working out the optimal trade-off.
--
Bill Sloman, Sydney
On 2019/07/22 1:31 p.m., Winfield Hill wrote:
Dropbox? Six-foot drop test.
In my field of jukeboxes (along with other coin-operated toys) the story
was that the best of the manufacturers, back in the 1940s, required that
a jukebox would be packed so that it could fall off a truck loading
dock, while packed in the factory crate, and survive. Roughly 5 feet...
Wurlitzer sure built them tough in those days!
When I was working at ITT-Creed, from 1979 to 1982 - they had been making Telex machines since the 1930's and were trying to move into communicating word processors that would exploit the Teletex protocol (which was actually used for few years in Sweden and Germany until e-mail replaced it) - I once got to hear an ITT production guy talking about the balance between making a machine more robust, and paying for bulkier and more elaborate packaging that allowed the machine in the package to move far enough to decelerate more slowly the outsides of the package when the package got dropped onto a hard surface.
They manufactured and shipped in high enough volumes that it was worth working out the optimal trade-off.
--
Bill Sloman, Sydney
J
Joerg
Guest
On 2019-07-22 20:06, Martin Riddle wrote:
A friend threw an older evaporative cooler over the 2nd floor balcony
railing into his yard. One of those 4ft metal monster cubes. Ka-CRASH.
Due to the big AC motor in there it got bent quite seriously. He was
planning to junk it and replace it with one of the new flat propeller
plastic units from Australia. It looked much nicer but that turned out
to be a mistake. Noisy, poorly balanced, didn't cool as good. So he
hoisted the old unit back up, banged it back into shape, connected it
back up, ran fine ever since.
--
Regards, Joerg
http://www.analogconsultants.com/
On 22 Jul 2019 13:31:57 -0700, Winfield Hill <winfieldhill@yahoo.com
wrote:
Dropbox? Six-foot drop test.
Do airconditioners count?
Funny thing, while putting the window unit in, it pirouetted out on a
corner rotated 90 degrees, slipped out of my grasp, and fell 6' onto
brick pavers.
must have been almost flat with the condensor. Just some minor sheet
metal damage, and a bent corner tube of the condensor.
Been running like a champ all weekend. Have to wait for next year to
say it survived the 6' fall.
A friend threw an older evaporative cooler over the 2nd floor balcony
railing into his yard. One of those 4ft metal monster cubes. Ka-CRASH.
Due to the big AC motor in there it got bent quite seriously. He was
planning to junk it and replace it with one of the new flat propeller
plastic units from Australia. It looked much nicer but that turned out
to be a mistake. Noisy, poorly balanced, didn't cool as good. So he
hoisted the old unit back up, banged it back into shape, connected it
back up, ran fine ever since.
--
Regards, Joerg
http://www.analogconsultants.com/
W
Winfield Hill
Guest
Martin Riddle wrote...
I made the post, with Tektronix' classic drop test
in mind. I can bring up a photo image in my mind,
one of their big tube 'scopes, strapped *flat* to
a dropping fixture, onto a thick rubber bottom pad,
calibrated for the intended G-force shock test.
But Google wasn't able to find this image for me.
--
Thanks,
- Win
Winfield Hill wrote:
Dropbox? Six-foot drop test.
Do airconditioners count?
Funny thing, while putting the window unit in,
it pirouetted out on a corner rotated 90 degrees,
slipped out of my grasp, and fell 6' onto brick
pavers. must have been almost flat ...
I made the post, with Tektronix' classic drop test
in mind. I can bring up a photo image in my mind,
one of their big tube 'scopes, strapped *flat* to
a dropping fixture, onto a thick rubber bottom pad,
calibrated for the intended G-force shock test.
But Google wasn't able to find this image for me.
--
Thanks,
- Win
L
legg
Guest
On 22 Jul 2019 13:31:57 -0700, Winfield Hill <winfieldhill@yahoo.com>
wrote:
>Dropbox? Six-foot drop test.
Made some logic/test probes once.
Encased in 2-part filled epoxy. Connections through tapped
brass inserts - indicators recessed leds. 6"x1"x0.5"
You could play mumbley-peg with it, with the suitable
probe tip installed.
One day, proudly demonstrating the ruggedness of one of them,
I casually flipped it into the air - it landed absolutely flat
on one surface and shattered.
So, drop test it 50x . . . . or just once in front of important
witnesses.
RL
wrote:
>Dropbox? Six-foot drop test.
Made some logic/test probes once.
Encased in 2-part filled epoxy. Connections through tapped
brass inserts - indicators recessed leds. 6"x1"x0.5"
You could play mumbley-peg with it, with the suitable
probe tip installed.
One day, proudly demonstrating the ruggedness of one of them,
I casually flipped it into the air - it landed absolutely flat
on one surface and shattered.
So, drop test it 50x . . . . or just once in front of important
witnesses.
RL
W
Winfield Hill
Guest
legg wrote...
Defective epoxy?
--
Thanks,
- Win
On 22 Jul 2019 13:31:57 -0700, Winfield Hill <winfieldhill@yahoo.com
wrote:
Dropbox? Six-foot drop test.
Made some logic/test probes once.
Encased in 2-part filled epoxy. Connections through tapped
brass inserts - indicators recessed leds. 6"x1"x0.5"
You could play mumbley-peg with it, with the suitable
probe tip installed.
One day, proudly demonstrating the ruggedness of one of them,
I casually flipped it into the air - it landed absolutely flat
on one surface and shattered.
So, drop test it 50x . . . . or just once in front of important
witnesses.
Defective epoxy?
--
Thanks,
- Win
Guest
On Wednesday, 24 July 2019 01:49:12 UTC+1, Winfield Hill wrote:
A long time ago a friend survived an air crash somewhere
remote - probably in South America. His portable Tek 'scope
tumbled onto the runway as the aircraft broke up and was
scorched and then covered in firefighting foam. It still
worked afterwards.
He sent it back to Tek for refurbishment but instead they gave
him a new one and kept the old one for publicity purposes.
John
A long time ago a friend survived an air crash somewhere
remote - probably in South America. His portable Tek 'scope
tumbled onto the runway as the aircraft broke up and was
scorched and then covered in firefighting foam. It still
worked afterwards.
He sent it back to Tek for refurbishment but instead they gave
him a new one and kept the old one for publicity purposes.
John