Re: [CAD_CAM_EDM_DRO] Re: USB ports ?

Well I have 18 e-mails about USB ports. The answer to my question seems to
be yes ,very well, but not quite yet. Is this somewhat right????

Thank you all for a very enlightening thread
salsaman59

----- Original Message -----
From: "Mariss Freimanis" <mariss92705@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, December 03, 2004 9:32 PM
Subject: [CAD_CAM_EDM_DRO] Re: USB ports ?


>
>
> I'm happy I'm finally back on it again. It's been 1 year and 12 days.
> The time elapsed was spent designing the G204V Vampire drive; that
> design was finally "put to bed" Wednesday.
>
> We had a little party here Wednesday nite when the gerber files were
> e-mailed to the board fabricators. In 2 weeks we get the first 1,000
> board-sets and then the real fun begins.
>
> In the meantime I've been killing time writing the G204V user's
> manual and generating 3D renderings of the solids model.
>
> Also I've been catching up with where I left off on the G2002,
> cleaning up the schematic diagrams to get them spiffed-up enough to
> code into an FPGA. That is done and the coding has begun.
>
> The G2002 should progress very rapidly. I did a time chart for the
> project; I'm shooting for a 4-month time frame to first article.
>
> An exciting prospect is the "unstallable stepper" idea the G2002
> should make possible. A true closed-loop, real time encoder feedback
> stepper system.
>
> This coming year will be exciting.
>
> Mariss
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Homann <groups@h...>
> wrote:
>> Mariss,
>>
>> I should have realised you had it covered. :-)
>>
>> Peter.
>>
>> Mariss Freimanis wrote:
>>
>> >
>> > Peter,
>> >
>> > Not a problem, 100mA is current to spare. The 100mA outputs are
> open-
>> > drain and diode clamped to the 24VDC power supply of your choice.
> You
>> > supply the 24VDC to run your relays or whatever, that is not
> taken
>> > from the USB 5VDC.
>> >
>> > Mariss
>> >
>> >
>> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Homann
> <groups@h...>
>> > wrote:
>> >
>> >>Hi Mariss,
>> >>
>> >>You will need to add an alternative power source, such as a wall
>> >
>> > adapter
>> >
>> >>or other power supply. The USB specification imposes limits on
>> >
>> > current
>> >
>> >>draw. The host first recognizes any peripheral as a low-power
>> >
>> > device,
>> >
>> >>which is limited to less than 100 mA of current. The peripheral
> can
>> >
>> > ask
>> >
>> >>the host to recognize it as a high-power device through a process
>> >
>> > called
>> >
>> >>enumeration. Once enumeration is complete and permission is
>> >
>> > granted, the
>> >
>> >>peripheral current limitation increases to 500 mA.
>> >>
>> >>Even 500mA is not enough for 16 outputs at 100mA each, let alone
>> >
>> > the
>> >
>> >>other power requirements of the G2002.
>> >>
>> >>Cheers,
>> >>
>> >>Peter.
>> >>
>> >>Mariss Freimanis wrote:
>> >>
>> >>>Hi,
>> >>>
>> >>>The G204V "Vampire" drive design is finished. The first 100 beta
>> >>>units will be available at the beginning of January.
>> >>>
>> >>>That means I'm back on the G2002 (G2005?) project. The FPGA for
>> >
>> > the
>> >
>> >>>design is being coded right now. In summary, the G2002 will have:
>> >>>
>> >>>1) 6 axis of step / direction (up to 4 MHz step rate)
>> >>>2) 6 axies of encoder feedback (CH-A, CH-B, Index and Fault)
>> >>>3) 8 analog output channels (+/-10V, 0-5V)
>> >>>4) 8 analog input channels (0-5V)
>> >>>5) 16 general purpose outputs (5-24VDC, 100mA)
>> >>>6) 16 general purpose inputs (+/- 100V protected)
>> >>>7) USB interface, USB powered
>> >>>
>> >>>Mariss
>> >>>
>> >>>
>> >>>
>> >>>--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...>
>> >
>> > wrote:
>> >
>> >>>>R Rogers wrote:
>> >>>>
>> >>>>
>> >>>>
>> >>>>>Wasn't Art Fenerty working on a system like this for Mach2? He
>> >>>
>> >>>referred to it as a "cube" or something like that? Basically a
>> >
>> > remote
>> >
>> >>>pulse generator. However, I understood it was to work from the
>> >>>parallel port. Maybe he already released it and I'm unaware of
>> >
>> > it.
>> >
>> >>>>>
>> >>>>Yes, hardware by Mariss Freimanis of Gecko Drives, called the
>> >>>
>> >>>G2002, I
>> >>>
>> >>>
>> >>>>think. There is a group
>> >>>>of people working on it. It runs through the USB, I believe.
>> >>>>
>> >>>>Jon
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>Addresses:
>> >>>FAQ: http://www.ktmarketing.com/faq.html
>> >>>FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
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>> >
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>> >>--
>> >>------------------------------------------------------------------
>> >>Web: www.homanndesigns.com
>> >>email: homann@h...
>> >>Phone: +61 421 601 665
>> >>www.homanndesigns.com/DigiSpeedDeal.html - DC Spindle control
>> >>www.homanndesigns.com/TurboTaig.html - Taig Mill Upgrade board
>> >
>> >
>> >
>> >
>> >
>> >
>> > Addresses:
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>> > OFF Topic POSTS: General Machining
>> > If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach
> it if you have trouble.
>> > http://www.metalworking.com/news_servers.html
>> >
>> > http://groups.yahoo.com/group/jobshophomeshop I consider this
> to be a sister site to the CCED group, as many of the same members
> are there, for OT subjects, that are not allowed on the CCED list.
>> >
>> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> EXCEPTIONS........
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>> > List Mom
>> > List Owner
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>> >
>> > Yahoo! Groups Links
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>> --
>> ------------------------------------------------------------------
>> Web: www.homanndesigns.com
>> email: homann@h...
>> Phone: +61 421 601 665
>> www.homanndesigns.com/DigiSpeedDeal.html - DC Spindle control
>> www.homanndesigns.com/TurboTaig.html - Taig Mill Upgrade board
>
>
>
>
>
> Addresses:
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> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
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> [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it
> if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
> sister site to the CCED group, as many of the same members are there, for
> OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>