[sudo-discuss] DXF or SVG or? for scanner light fixture mount cutting for book scanner

[Marc Juul]

Nice! I'm not sure we have any non-circuitboard FR4. If it's not too big we
could just order it from e.g. seeedfusion as a circuitboard design with no
exposed copper pads.

On Thu, Jan 18, 2018 at 1:54 PM, jacques revera <jacquesrevera at gmail.com>
wrote:

> I just purchased two refurbished 20 megapixel Canon PowerShot ELPH 160 and
> the archivist lighting assembly which includes LED bulbs, sockets, lenses,
> wiring and power adapter.
>
> Jonathon will send us the design files for the sockets mounting plate soon
> as I tell him what format we need to cut it at the SUDO room: DXF or SVG or
> something else?
>
> ~
>
> http://diybookscanner.org/archivist/index6ea9.html?page_id=267
> This is the page describing the plate. It would be convenient if the SUDO
> room has some FR4 but as long as the material is opaque, heat proof and can
> be painted black, should be no problem.
>
> This plate will sit at the top center of the scanner. The plate also
> serves to block light from entering from the top direction. Since, we need
> to attach something to raise the lights higher than the original
> hackerspace design, we should not cut this out yet. It does not need to be
> the same shape as the archivist plate as long as the socket mounting holes
> are the same.
>
> Jonathon wrote last week:
> ."..you can move the lights further away from the platen. Because of
> various design constraints, Daniel put the lights closer to the platen than
> is ideal on that model. For later models (like Daniel's Archivist design),
> the lights were been moved further away to reduce glare and hot spots. You
> want to reproduce this in some way. So just build a simple frame you can
> set on top of the scanner to lift the lights. There is a mathematical way
> to find the minimum distance, but it might be easiest just to do it
> empirically, pulling the lights away and taking sample photos until you see
> that there is no reflected light source."
>
> You can see how this the lights are put together on the archivist about
> halfway down this page
> http://diybookscanner.org/archivist/index9bef.html?page_id=54
>
> Jacques
>
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