<div dir="ltr">good for solar panels 2<br>:)<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jan 19, 2018 at 2:28 PM, robb <span dir="ltr"><<a href="mailto:sf99er@gmail.com" target="_blank">sf99er@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>i think they're on to something w/the <a href="http://www.mdpi.com/1996-1073/10/12/2091/htm" target="_blank">double linear fresnel lenses</a><br></div>looks like it can hit 2 dimensions uniformly<br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jan 19, 2018 at 1:44 PM, <span dir="ltr"><<a href="mailto:hol@gaskill.com" target="_blank">hol@gaskill.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
Just looked at the instructions - are we overthinking how to illuminate a piece of paper? Could easily use an aluminum channel with white LED strip to do same task. Happy to bring these materials next tues.<div><div class="m_-1994260271221145814h5"><br>
<p>On 2018-01-18 22:37, jacques revera wrote:</p>
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<div dir="ltr">probably less than a square foot or half of that. depends on how we remake the piece holding the light to raise it higher</div>
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<div class="gmail_quote">On Thu, Jan 18, 2018 at 10:23 PM, Jake <span><<a href="mailto:jake@spaz.org" rel="noreferrer" target="_blank">jake@spaz.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">i have plenty of FR4 that does have copper on it, we could still use it for<br> this. how much do we need?
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<div class="m_-1994260271221145814m_5860672517183267913h5"><br><br> On Thu, 18 Jan 2018, Marc Juul wrote:<br><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Nice! I'm not sure we have any non-circuitboard FR4. If it's not too big we<br> could just order it from e.g. seeedfusion as a circuitboard design with no<br> exposed copper pads.<br><br> On Thu, Jan 18, 2018 at 1:54 PM, jacques revera <<a href="mailto:jacquesrevera@gmail.com" rel="noreferrer" target="_blank">jacquesrevera@gmail.com</a>><br> wrote:<br><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I just purchased two refurbished 20 megapixel Canon PowerShot ELPH 160 and<br> the archivist lighting assembly which includes LED bulbs, sockets, lenses,<br> wiring and power adapter.<br><br> Jonathon will send us the design files for the sockets mounting plate soon<br> as I tell him what format we need to cut it at the SUDO room: DXF or SVG or<br> something else?<br><br> ~<br><br><a href="http://diybookscanner.org/archivist/index6ea9.html?page_id=267" rel="noreferrer" target="_blank">http://diybookscanner.org/arch<wbr>ivist/index6ea9.html?page_id=2<wbr>67</a><br> This is the page describing the plate. It would be convenient if the SUDO<br> room has some FR4 but as long as the material is opaque, heat proof and can<br> be painted black, should be no problem.<br><br> This plate will sit at the top center of the scanner. The plate also<br> serves to block light from entering from the top direction. Since, we need<br> to attach something to raise the lights higher than the original<br> hackerspace design, we should not cut this out yet. It does not need to be<br> the same shape as the archivist plate as long as the socket mounting holes<br> are the same.<br><br> Jonathon wrote last week:<br> ."..you can move the lights further away from the platen. Because of<br> various design constraints, Daniel put the lights closer to the platen than<br> is ideal on that model. For later models (like Daniel's Archivist design),<br> the lights were been moved further away to reduce glare and hot spots. You<br> want to reproduce this in some way. So just build a simple frame you can<br> set on top of the scanner to lift the lights. There is a mathematical way<br> to find the minimum distance, but it might be easiest just to do it<br> empirically, pulling the lights away and taking sample photos until you see<br> that there is no reflected light source."<br><br> You can see how this the lights are put together on the archivist about<br> halfway down this page<br><a href="http://diybookscanner.org/archivist/index9bef.html?page_id=54" rel="noreferrer" target="_blank">http://diybookscanner.org/arch<wbr>ivist/index9bef.html?page_id=5<wbr>4</a><br><br> Jacques<br><br> ______________________________<wbr>_________________<br> sudo-discuss mailing list<br><a href="mailto:sudo-discuss@lists.sudoroom.org" rel="noreferrer" target="_blank">sudo-discuss@lists.sudoroom.or<wbr>g</a><br><a href="https://sudoroom.org/lists/listinfo/sudo-discuss" rel="noreferrer" target="_blank">https://sudoroom.org/lists/lis<wbr>tinfo/sudo-discuss</a><br><br><br></blockquote>
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