On Thu, Apr 16, 2020 at 6:02 PM Jules Richardson via cctalk < cctalk@classiccmp.org> wrote:
> On 4/15/20 6:22 PM, keith--- via cctalk wrote: > > I have three others with the cover still on :) I want to make a clear > > plexiglass cover for them. > > Just for fun, this is what I have from a Lockheed MAC-16 machine: > > http://www.classiccmp.org/acornia/tmp/catcore.jpg > > ... the white line is a cat hair, just to give an idea of scale. It's > incredibly fine stuff (and if I remember right this board was from 1970; I > didn't think core got that compact until more toward the end of the > decade, > right at the tail end of core's era, when semiconductor RAM had become > commonplace). > > *somewhere* I have a microscope, so might try photographing through that > at > some point; this was the best I could do with a loupe held over my > camera's > lens. > I'm now tempted to try with the macro adapter for my good camera and see how if I can improve on this one https://goo.gl/photos/bV2JGbnDUH4uU7CDA and this fun bit of core ROM https://photos.app.goo.gl/WljReTaxbIIyXNgu1 > I've wondered about doing the plexiglass thing too, just for display > purposes (the planes are damaged on both boards that I have, and I'm not > sure if anyone has an intact MAC-16 anywhere anyway), but then I got to > wondering what the point was given that it needs magnification to really > see anything anyway :-) > Plexiglass works well for small planes. I have one which was about 5"x5". I had a local plastic stop cut me 2 7"x7"x1/5" squares, plus 1 7x7x1/8 with a 5x5 square cut in the center. Then I made a sandwich of the 3, with the plane in the cutout. I drilled a hole in each corner to put a bolt through it. Short bolts on the top, but extra long ones on the bottom, so I could use it as a stand. I would send a picture, but it is in my office, which I have been locked out of for a month. > cheers > > Jules >