On Sunday 16 February 2014 13:12:27 MC Cason did opine:
> On 02/16/2014 11:26 AM, Gene Heskett wrote:
> > On Sunday 16 February 2014 12:22:12 N. Christopher Perry did opine:
> >> I've developed a circuit just for this application:
> >> https://dl.dropboxusercontent.com/u/34705319/Spindle Drive Interface
> >> Schematic.pdf
> >>
> >> It does a fairly decent job. It gets within ~0.5% of full scale on
> >> both ends and has a linearity error of ~0.5%. In addition it has a
> >> couple of opto isolated control/feedback signals for spindle enable
> >> and a 'at speed' indication.
> >>
> >> Here are the Eagle files for it if you'd like to crib them:
> >> https://www.dropbox.com/sh/solnou6bjixmmp7/3b3ChzN0Wk
> >>
> >> I've even got a few bare PCBs and a couple of populated ones if you'd
> >> like to buy one.
> >>
> >> N. Christopher Perry
> >
> > Unfortunately, the files, while they can be downloaded by chromium but
> > not FF27, the .pdf aren't not open able by acroread, bad .pdf.
> >
> > Eagle says the .sch is not an eagle file.
>
> I'm using Firefox in Mint 16, and I downloaded the entire site as a
> zip file. Eagle v6.4.0 had no problems opening the files.
Eagle-6.5 here but that shouldn't make any difference. I'll go back and
get the .zip file. I had grabbed it with chromium's "save link as" and
just now noted the site says about 22kb, but the chromium downloaded
version was 64kb.
Still is after 3rd download, this time with FF27, gunzip doesn't want to
unpack it at all,
And unzip reports:
gene@coyote:~/Downloads/PWM-stf$ unzip "../PWM-to-Analog Interface.zip"
Archive: ../PWM-to-Analog Interface.zip
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.
unzip: cannot find zipfile directory in one of ../PWM-to-Analog
Interface.zip or
../PWM-to-Analog Interface.zip.zip, and cannot find ../PWM-to-
Analog Interface.zip.ZIP, period.
I have no clue, obviously. :(
Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
NOTICE: Will pay 100 USD for an HP-4815A defective but
complete probe assembly.
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