[HH] Hardwarehacking Digest, Vol 19, Issue 15

Wed Dec 19 12:15:39 EST 2012

Hi guys. I volunteer at the Southend technology center. We have a
vinyl cutter with copper and have experience with this if anybody is
interested. Tues and thurs 6-8pm is walking and is open to public.  I
think some of you would benefit from visiting this center as we have
shopbot, laser cutter and modela PCB. Let me know if you need any more
info

Regarding the raspberry Pi making into laptop due to my schedule at
the center  I can not make these meetings. Any chance these are
recorded and posted online?

Ming
Sent from my iPad

On Dec 19, 2012, at 12:00 PM, "hardwarehacking-request at blu.org"
<hardwarehacking-request at blu.org> wrote:

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> Today's Topics:
>
>   1. Re: Raspberry Pi turned into a portable workstation (Tom Metro)
>   2. vinyl resist PCB etch (Tom Metro)
>   3. Boston Linux Meeting reminder, Tonight, December 19,    2012 -
>      Building    an ARM Laptop with Raspberry Pi (Jerry Feldman)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 19 Dec 2012 02:38:06 -0500
> From: Tom Metro <tmetro+hhacking at gmail.com>
> To: hardwarehacking at blu.org
> Subject: Re: [HH] Raspberry Pi turned into a portable workstation
> Message-ID: <50D16EDE.7090103 at gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Kurt Keville wrote:
>> I see that Federico is teaching a class on this tomorrow at
>> http://www.blu.org/cgi-bin/calendar/2012-dec
>
> Does that qualify as a class? I considered it a presentation. Shades of
> gray, I guess.
>
> There's an article on this same topic:
>
> Raspberry Pi turned into a portable workstation
> http://www.geek.com/articles/chips/raspberry-pi-turned-into-a-portable-workstation-20120719/
>
>  SK Pang Electronics...[combined] a mini wireless keyboard typically
>  used with a smartphone, a USB power pack, and an small LCD monitor
>  usually found in the backseat of a car.
>
>  All components, including the Raspberry Pi, were mounted on a laser
>  cut, transparent base with a specially cut hole acting as a handle for
>  carrying the unit around. The difficult bit was figuring out how to
>  power both the display and the Raspberry Pi from the single USB power
>  pack.
>  [...]
>  Another project I'd like to see is someone ripping the guts out of an
>  old laptop and fitting a Raspberry Pi inside instead. The end result
>  should look like a typical laptop without anyone being able to tell
>  there's a $25 PC running inside.
>
>
>
> -Tom
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 19 Dec 2012 02:51:36 -0500
> From: Tom Metro <tmetro+hhacking at gmail.com>
> To: hardwarehacking at blu.org
> Subject: [HH] vinyl resist PCB etch
> Message-ID: <50D17208.4090404 at gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> @connors934, a local hardware hacker I follow on Twitter, mentioned he
> uses a vinyl sign cutting machine to print out PCB resist patterns in
> self-adhesive vinyl, which are then stuck on copper clad boards and etched.
>
> He has a video:
> http://www.youtube.com/watch?v=dPc5XRjGyic&feature=youtu.be
>
> and photos:
> http://www.flickr.com/photos/connors934/sets/72157632265516174/
>
> I've used the older technique (which was new at the time I tried it) of
> laser printing onto clear plastic sheets, then heat transferring the
> toner to the PCB. That worked OK, but I never got perfect transfers. I'm
> sure it could be achieved with practice and an ideal setup (right amount
> of heat and pressure).
>
> This approach seems less variable, and from the pictures of his etched
> boards, the copper looks good and solid - free of pits and edge bleed.
>
> Of course the down side is you need a vinyl cutting machine, or you need
> to go to a local sign making shop and pay them to print your design.
>
> Still, a vinyl cutting machine is probably cheaper and less maintenance
> than a board router that uses a tiny milling bit to route away the copper.
>
> I wonder how fine a pitch this technique can reliably handle.
>
> -Tom
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 19 Dec 2012 11:31:44 -0500
> From: Jerry Feldman <gaf at blu.org>
> To: announce at blu.org, gnhlug-discuss at gnhlug.org
> Subject: [HH] Boston Linux Meeting reminder, Tonight, December 19,
>    2012 - Building    an ARM Laptop with Raspberry Pi
> Message-ID: <50D1EBF0.9070007 at blu.org>
> Content-Type: text/plain; charset="iso-8859-1"
>
> When: December 19, 2012 7PM (6:30PM for Q&A)
> Topic: Building an ARM Laptop with Raspberry Pi
> Moderator:Federico Lucifredi
> Location: MIT Building E51, Room 315
>
>
> Summary
> Federico discusses turning a Raspberry Pi into a laptop
>
> Please note that this is a change from the previously scheduled
> presentation. Federico will be able to give his presentation on
> OpenStack at a future date.
>
>
> For further information and directions please consult the BLU Web site
> http://www.blu.org
> Please note that there is usually plenty of free parking in the E-51
> parking lot at 2 Amherst St, or directly on Amherst St.
>
> After the meeting we will adjourn to the official after meeting meeting
> location at The Cambridge Brewing Company
> http://www.cambridgebrewingcompany.com/
>
> --
> Jerry Feldman <gaf at blu.org>
> Boston Linux and Unix
> PGP key id:3BC1EB90
> PGP Key fingerprint: 49E2 C52A FC5A A31F 8D66  C0AF 7CEA 30FC 3BC1 EB90
>
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