I may be wrong but I would say gerber is much more akin to this photo plotter than a pen plotter since gerber data makes use of pre defined Aperture sizing and Co-Ordinate data, rather than pen up and pen down code... It took me a while to grasp the idea of an aperture as in the modern world it seems a really weird concept and it is through looking at the likes of this machine that one can appreciate its background. - Alex
On Saturday, 12 July 2014 21:57:29 UTC+1, Terry S wrote: > > Gerber is much more akin to pen plotter code than it would be to the > concept in the video. I used a pen plotter back in the 80's for generating > check plots of my PCB layouts done on an early Racal-Redac CAD system.. > Then we also got a Versatec electrostatic plotter, another interesting > device. Monochrome, but good for schematics. > > On Saturday, July 12, 2014 2:17:36 PM UTC-5, threeneurons wrote: >> >> One problem. Can't erase film. Early CAD would follow soon, so this would >> have a short product life. >> >> I used to be a draftsman, early in my career, and had that classic >> draftsman's printing hand. Now, after using computers, for decades, my >> handwriting is undecipherable chicken scratching. >> >> For working drawings, using the results from a mechanical pencil was just >> fine. For published documents (manuals, text books, ...) the drawing was >> done in ink, with the aid of templates. This was a difficult skill, since >> ink could run under, and bleed to an adjacent surface. Also, you can't >> erase ink, either. >> >> When CAD hit the personal computer, things changed quickly. Printer >> technology lagged, and early drawings came out of pen plotters. A few >> specialty color dot matrix graphic printers were produced, but it took >> forever to draw a schematic, and the results a bit iffy, when compare to a >> plotter. >> >> The general concept of this video did live on. There's the Gerber >> photo-plotter used to make artwork, for printed circuit boards. The Gerber >> file is still a common, if not dominant, format used in the PCB industry. >> >> On Monday, July 7, 2014 11:26:56 PM UTC-7, 5-ht wrote: >>> >>> I wonder how many of these actually got installed? >>> See: >>> http://vimeo.com/75532300 >>> >>> Mark >>> >> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/4b2d86cd-8c83-4716-b299-7a0652552289%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
