Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list  

Subject: Re: Using Xerographic machine for imaging

From: "AlienRelics" <alienrelics@...>
Date: 2011-05-17

Yes, my old HP 4c scanner was great for this. I could use it as a very closeup camera, the depth of focus was great.

But then I got a very thin Canon scanner. Anything not in intimate contact with the glass is out-of-focus. Impossible to scan a manual or book pages in. I practically had to iron letters flat, or the lines adjacent to the folds would be blurry. Horrible.

Too bad my old HP died. I used it to scan my vinyl cutter produced PCBs in the Files section. Worked much better than using a digital camera, no flash reflection, no parallax from a closeup.

Steve Greenfield AE7HD

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
>
> A scanner also works well, even for the component side.
> The image can look slightly strange, especially with taller
> components, since perspective is missing.
>
> Apparently the older scanners have a better focus depth than the new
> very thin scanners.
>
> ST
>