USB Chainsaw

[Boudewijn Dijkstra]

Op Thu, 09 Jul 2009 03:52:37 +0200 schreef terryc
<newssevenspam-spam@woa.com.au>:

On Thu, 09 Jul 2009 06:28:27 +1000, Don McKenzie wrote:

3) A telemarketer
that has been rudely spoken to, with a USB chainsaw!

Umm, punctuation?
I personally don't know any telemarketer that would threaten anything if
I had a USB chainsaw.

The telemarketer has the USB chainsaw, not you. He is likely to need some
activity to vent his anger, which combined with a USB chainsaw could be
rather dangerous. Perhaps not to his prey, but dangerous nonetheless.

umm2, are they still a telemarketer if they are standing in your
presence?

Depends wheter you are a colleague or prey, but that has nothing to do
with the point.


--
Gemaakt met Opera's revolutionaire e-mailprogramma:
http://www.opera.com/mail/

 

[Don McKenzie]

Gilles Kohl wrote:

Hmm, isn't that device-side USB port the wrong type? Unless what is
illustrated in the photo is the downstream socket that can be used to
cascade several devices - hey, you could create a chain-saw-chain!

Very unusual, an AM to AM cable.
Only time I have used these, was when the designer did it wrong.

Don...



--
Don McKenzie

Site Map: http://www.dontronics.com/sitemap
E-Mail Contact Page: http://www.dontronics.com/email
Web Camera Page: http://www.dontronics.com/webcam
No More Damn Spam: http://www.dontronics.com/spam

Breakout, Prototype, Development, & Robotics Boards.
http://www.dontronics-shop.com/sparkfun-electronics.html

 

[John Tserkezis]

don wrote:

The close-up on the video is a little TOO CLOSE UP !!

Notice on the closeup, the total blade length was longer than the blade on
the mockup.
--
Linux Registered User # 302622
<http://counter.li.org>

 

[John Tserkezis]

geoff wrote:

This is a real one, just for you.
http://www.welookdoyou.com/fufme/

Nope. All the images are CGI. That almost invariably means it's either
vapourware, or fake.

Heck, look at the iPhone. Prior to actual physical release, the ONLY images
available were CGI. Even now, several manufacturers had released, or already
released phones that either compete with, or surpass the iPhone capabilities.

Just goes to prove, if it's shown in CGI, it's fake.

So there.
--
Linux Registered User # 302622
<http://counter.li.org>

 

[Michael A. Terrell]

Don McKenzie wrote:

Gilles Kohl wrote:

Hmm, isn't that device-side USB port the wrong type? Unless what is
illustrated in the photo is the downstream socket that can be used to
cascade several devices - hey, you could create a chain-saw-chain!

Very unusual, an AM to AM cable.
Only time I have used these, was when the designer did it wrong.

I see them in stores. They are sold to transfer data between PCs.


--
You can't have a sense of humor, if you have no sense!

 

[Grant Edwards]

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

--
Grant Edwards grante Yow! My mind is a potato
at field ...
visi.com

 

[Michael A. Terrell]

Grant Edwards wrote:

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!


--
You can't have a sense of humor, if you have no sense!

 

[AZ Nomad]

On Thu, 09 Jul 2009 10:07:35 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

Grant Edwards wrote:

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!

You don't have one of those 75A usb ports?

 

[Michael A. Terrell]

AZ Nomad wrote:

On Thu, 09 Jul 2009 10:07:35 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

Grant Edwards wrote:

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!

You don't have one of those 75A usb ports?

No. They catch fire way too often. I upgraded to the 1000A version,
but the cables are still on backorder.


--
You can't have a sense of humor, if you have no sense!

 

[AZ Nomad]

On Thu, 09 Jul 2009 10:29:24 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

AZ Nomad wrote:

On Thu, 09 Jul 2009 10:07:35 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

Grant Edwards wrote:

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!

You don't have one of those 75A usb ports?

No. They catch fire way too often. I upgraded to the 1000A version,
but the cables are still on backorder.

It's real hard soldering the 000 wire into those little connectors. When I
use my computer's front panel ports, the computer keeps tipping over.

 

[Grant Edwards]

On 2009-07-09, AZ Nomad <aznomad.3@PremoveOBthisOX.COM> wrote:

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).
[...]
A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!

You don't have one of those 75A usb ports?

It would be handy for spot-welding modules together.

--
Grant Edwards grante Yow! I'm having a BIG BANG
at THEORY!!
visi.com

 

[Michael A. Terrell]

AZ Nomad wrote:

On Thu, 09 Jul 2009 10:29:24 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

AZ Nomad wrote:

On Thu, 09 Jul 2009 10:07:35 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

Grant Edwards wrote:

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!

You don't have one of those 75A usb ports?

No. They catch fire way too often. I upgraded to the 1000A version,
but the cables are still on backorder.

It's real hard soldering the 000 wire into those little connectors. When I
use my computer's front panel ports, the computer keeps tipping over.

Duh! You have to use contact cement to hold it to the desk.! ;-)


--
You can't have a sense of humor, if you have no sense!

 

On Jul 8, 4:28 pm, Don McKenzie <5...@2.5A> wrote:

Now here is a handy little tool for the handyman's tool box:http://www.usbchainsaw.com/index.php

Has anyone been able to get a libusb based driver working for it?

 

[Don McKenzie]

Michael A. Terrell wrote:

Don McKenzie wrote:
Gilles Kohl wrote:

Hmm, isn't that device-side USB port the wrong type? Unless what is
illustrated in the photo is the downstream socket that can be used to
cascade several devices - hey, you could create a chain-saw-chain!
Very unusual, an AM to AM cable.
Only time I have used these, was when the designer did it wrong.


I see them in stores. They are sold to transfer data between PCs.

I sell them also:
http://www.dontronics-shop.com/usb-a-male-to-a-male-cable.html
these are straight through, whereas the transfer cable swaps rx and tx.

As I say, the only time I have used these, was when the designer did it
wrong, and placed the wrong connector on the peripheral. IE: Chainsaw!
Then you need an AM to AM straight through cable, and not a transfer cable.

Cheers Don...




--
Don McKenzie

Site Map: http://www.dontronics.com/sitemap
E-Mail Contact Page: http://www.dontronics.com/email
Web Camera Page: http://www.dontronics.com/webcam
No More Damn Spam: http://www.dontronics.com/spam

Breakout, Prototype, Development, & Robotics Boards.
http://www.dontronics-shop.com/sparkfun-electronics.html

 

[Don McKenzie]

cs_posting@hotmail.com wrote:

On Jul 9, 3:11 pm, Don McKenzie <5...@2.5A> wrote:

I see them in stores. They are sold to transfer data between PCs.
I sell them also:http://www.dontronics-shop.com/usb-a-male-to-a-male-cable.html
these are straight through, whereas the transfer cable swaps rx and tx.

No it doesn't. There's only one twisted pair in a USB cable, and
reversing it's polarity won't do much good. You are probably
thinking of UTP ethernet cables from the days before autoswitching.

The data transfer rigs have a double-ended USB device in between, so
both computers can be the host.

In the age of USB-OTG interfaces some previously illegitimate cables
have become legitimate, but there it's the interface doing the
switching between host and device mode, not the cable swapping pairs.

Fair nuff!

Obviously I wasn't familiar enough with the transfer cable, however the
AM to AM that is used with the USBchainsaw is considered a special cable

The only reason I have ended up stocking them is because of designer faults.

Cheers Don...



--
Don McKenzie

Site Map: http://www.dontronics.com/sitemap
E-Mail Contact Page: http://www.dontronics.com/email
Web Camera Page: http://www.dontronics.com/webcam
No More Damn Spam: http://www.dontronics.com/spam

Breakout, Prototype, Development, & Robotics Boards.
http://www.dontronics-shop.com/sparkfun-electronics.html

 

[Don McKenzie]

Don McKenzie wrote:

Now here is a handy little tool for the handyman's tool box:
http://www.usbchainsaw.com/index.php

Now, the tag line:
http://www.usbchainsaw.com/reveal.html



Cheers Don...





--
Don McKenzie

Site Map: http://www.dontronics.com/sitemap
E-Mail Contact Page: http://www.dontronics.com/email
Web Camera Page: http://www.dontronics.com/webcam
No More Damn Spam: http://www.dontronics.com/spam

Breakout, Prototype, Development, & Robotics Boards.
http://www.dontronics-shop.com/sparkfun-electronics.html

 

[AZ Nomad]

On Thu, 09 Jul 2009 13:07:41 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

AZ Nomad wrote:

On Thu, 09 Jul 2009 10:29:24 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

AZ Nomad wrote:

On Thu, 09 Jul 2009 10:07:35 -0400, Michael A. Terrell <mike.terrell@earthlink.net> wrote:

Grant Edwards wrote:

On 2009-07-09, Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> wrote:

Wow, 8lbs, 10" bar, but no mention of motor power, or how much current it
draws from the USB port

Say a 1/2HP motor should be okay from a USB part, given a
suitably low duty cycle (maybe 10 minutes of blood-spattering
mayhem per day).

Huh? A USB port that meets spec can provide 0.5A at 5V (2.5W).

$ units
2411 units, 71 prefixes, 33 nonlinear units

You have: 2.5 watts
You want: hp
* 0.0033525552
/ 298.27995

A USB port cat provide 0.0034 HP

1/2HP is 373W. At 5V, that's almost 75A. Short duty cycle
indeed.

Charge for months, and use for minutes!

You don't have one of those 75A usb ports?

No. They catch fire way too often. I upgraded to the 1000A version,
but the cables are still on backorder.

It's real hard soldering the 000 wire into those little connectors. When I
use my computer's front panel ports, the computer keeps tipping over.

Duh! You have to use contact cement to hold it to the desk.! ;-)

The concrete fasteners to the floor were overkill?

 

[Rich Webb]

On Fri, 10 Jul 2009 05:11:16 +1000, Don McKenzie <5V@2.5A> wrote:

Michael A. Terrell wrote:
Don McKenzie wrote:
Gilles Kohl wrote:

Hmm, isn't that device-side USB port the wrong type? Unless what is
illustrated in the photo is the downstream socket that can be used to
cascade several devices - hey, you could create a chain-saw-chain!
Very unusual, an AM to AM cable.
Only time I have used these, was when the designer did it wrong.


I see them in stores. They are sold to transfer data between PCs.

I sell them also:
http://www.dontronics-shop.com/usb-a-male-to-a-male-cable.html
these are straight through, whereas the transfer cable swaps rx and tx.

As I say, the only time I have used these, was when the designer did it
wrong, and placed the wrong connector on the peripheral. IE: Chainsaw!
Then you need an AM to AM straight through cable, and not a transfer cable.

I seem to recall that in the early days of USB there were quite a few
peripherals with A connectors. Took a little while to stabilize (or
standardize) on the current layout.

--
Rich Webb Norfolk, VA

 

On Jul 9, 10:34 am, AZ Nomad <aznoma...@PremoveOBthisOX.COM> wrote:

You don't have one of those 75A usb ports?
  No.  They catch fire way too often. I upgraded to the 1000A version,
but the cables are still on backorder.

It's real hard soldering the 000 wire into those little connectors.  When I
use my computer's front panel ports, the computer keeps tipping over.

Get a clue! Instead of using a bigger cable to carry more electrons
at a time, you should try overclocking your motherboard so that you
can push them _faster_

 

[Robert Roland]

On Thu, 09 Jul 2009 18:28:13 +1000, Don McKenzie <5V@2.5A> wrote:

Very unusual, an AM to AM cable.

I have seent it once, on a hard disk enclosure for a 2.5" drive. The
cable even had three connectors, so you could leech power from an
additional USB port if the drive drew too much power for one port.
--
RoRo