[hpsdr] punched metal backplate for Pandora

[John Koster]

In the mean time here's some information extracted from those drawings.

0.790 wide
5.107 long

The 0.125 wide notch is centered on each end and is 0.198 deep.  Radius
of end of notch is 0.0625

Radius of the corners isn't specified on this drawing sheet, but appears
to be also about 0.0625.

Holes the blanks are screwed to are on 1.000 centers (which matched the 
spacing between the Atlas connectors).

They sure don't do mechanical drawings the way I was taught 50+ years ago!


On Sun, 5 Jul 2009, John Ackermann N8UR wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> Roger, that's a very good question.  There are PDFs showing the 
> mechanicals, but they were prepared by the manufacturer.  I am sure 
> there will be no problem making them available (I should have thought of 
> it before...) but should check with them before posting the files.  I'll 
> do that this week.
> 
> John
> ----
> 
> w3sz said the following on 07/05/2009 11:33 AM:
> > ***** High Performance Software Defined Radio Discussion List *****
> > 
> > Does anyone know if CAD files or text files with the exact dimensions 
> > used for Pandora [e.g. spacing/size of screw and other holes on the back 
> > panel] exist on the openhpsdr website or elsewhere on the web?
> > 
> > I have the boxes and can measure, but to keep errors as low as possible 
> > I'd like to start with the design dimensions first.
> > 
> > I couldn't find them at either
> > 
> > http://openhpsdr.org/wiki/index.php?title=PANDORA
> > 
> > or
> > 
> > http://openhpsdr.org/pandora.html
> > 
> > or
> > 
> > http://openhpsdr.org/documents.html
> > 
> > or
> > 
> > http://openhpsdr.org/download.html
> > 
> > or
> > 
> > http://www.tapr.org/kits_pandora.html
> > 
> > 73,
> > 
> > W3SZ
> > Roger Rehr
> > http://www.nitehawk.com/w3sz
> > 
> > On 7/1/2009 8:05 PM, Roger Rehr wrote:
> >> Hi All,
> >>
> >> Unfortunately my ham shack is in the country on the edge of the forest,
> >> and its impossible to keep mice out of it. I have had equipment damage
> >> by mice in past years at this location, so that everything I use is
> >> 'mouse proofed' or locked away after use. See
> >> http://www.nitehawk.com/w3sz/mouse-ft1000.htm if interested in proof.
> >>
> >> I very much like the Pandora enclosure and my Atlas/Mercury/OzyPenelope
> >> HPSDRs.
> >>
> >> But Pandora is not mouse proof, and I really do not want mice doing
> >> their mischief in my HPSDR enclosures.
> >>
> >> So I ask, would it be possible to design and have built a punched metal
> >> backplate to attach to the back of Pandora shaped to seal Pandora
> >> effectively with the above-mentioned boards in place?
> >>
> >> If it were possible to do so, I would like to proceed with moving this
> >> little project forward, as I am tiring of disconnecting and putting away
> >> my HPSDRs after each use and then getting them out again and
> >> reconnecting them for the next use. And I worry about the eventual
> >> effect of such repeated connects and disconnects on the stereo 3.5 mm
> >> connectors on Penelope and Mercury.
> >>
> >> So I would ask, of you experts on this list:
> >>
> >> 1. If this can be possibly done
> >> 2. What would be the preferred slot positions for Mercury/Ozy/Penelope?
> >> [so that the backplate can be designed to accommodate this arrangement]
> >> 3. What business concern might give a price for producing such
> >> backplates and then do a good job of producing them?
> >> 4. Who else on the list might be interested in having such backplates
> >> [if anyone] if I were to have them produced?
> >> 5. Is there anyone that would like to tackle the layout / dimensions of
> >> such a backplate? I could do it but as I have no experience in doing
> >> either the careful measuring or the CAD layout this would require, I
> >> suspect I'd screw it up.
> >>
> >> The mice can get in thru some very tiny holes, so I might also need to
> >> plug up the openings intended for Alex for those Pandoras that won't
> >> include Alex.
> >>
> >> Thanks in advance,
> >>
> >> Roger Rehr
> >> W3SZ
> >> http://www.nitehawk.com/w3sz/osxhpsdrserver.htm
> >>
> >>
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-- 
73,
John, W9DDD


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