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Post by erho on Aug 7, 2023 14:59:10 GMT
Heres one I made this weekeand, print to table, AND it still runs Windows with no issues!
The back heatsink
The rust is real, steel wool soaking in vinegar for 4-5 days; shake and paint, and voila!
Cheers!
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Post by sgtslag on Aug 7, 2023 17:34:22 GMT
Love the Windows OS background image on the monitor -- a real blast from the past, which I remember very well.
I spent three and one-half years working as a Component Level Electronic Technician, replacing diodes, transistors, IC's, capacitors, transformers, etc. I repaired a line of some of the early color mainframe terminals, back in the mid-1980's, and those screens bring back a lot of memories -- very reminiscent of that period's technology. I appreciate the heatsinks on the back of the cabinet -- not lost on me, I slathered thermal pastes onto many a power transistor, microprocessor, etc.
For the rust, did you paint the iron-oxide solution onto the model, then clear coat to seal it in place? Very nice work, superb rendition of sci-fi loosely based on the 1980's technology. Takes me back to one of my professional golden eras. Cheers!
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Post by erho on Aug 8, 2023 14:14:18 GMT
Thank you!
I have an Electronics Associates degree however only used for a hobby, those bench tech jobs are more assembly line or not enouhgt to feed a family, so I now do IT...similar LOL
Yeah I poked the oxide around to key spots and the final spray of satin varnish.
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Post by sgtslag on Aug 8, 2023 17:30:33 GMT
I left my ET job for an IT job, in 1990. The Surface Mount Devices (SMD's) killed those ET jobs in 1991: it became far cheaper to buy a replacement board, than it was to repair the failed board. At my previous employer, 40 Technicians lost their jobs, as the whole 3rd Party Repair Service industry went under at the same time. Re-working SMD circuit boards is nigh impossible: in 1989, my employer bought a $10k (in 1989 Dollars) SMD Rework Station, and I was asked to learn it... Could not be done: too small, too fiddly, too hard to unsolder/re-solder, using only hot air, and solder paste, in very tight areas. I've been in IT since 1990. I miss my ET job. It was very rewarding, and I was very good at it. It was not as repetitive as you imagine it to be. There was sufficient variety in what I did for it to be fun and interesting, as well as very rewarding to take something broken, and make it work again, for 90+ days -- my warranty period, upon which I was graded: 5% rate at Tech Level 1; 2.5% rate, as a Tech Level 2; never made it to Tech Level 3, 1.5% rate. I dodged a massive bullet by getting out before the whole industry collapsed. I was curious whether a spray varnish would set the iron oxide in place, without moving it. Wife and I took a natural dyeing class, years ago. Iron Oxide is a mordant (colored dye fixator, preventing the dye from washing out of the fiber materials, which for us, was wool yarns) for natural fibers and fabrics. My Wife knits and weaves; I enjoyed the dyeing process as it reminded me of childhood books I had read: The Mad Scientists' Club. The class discussed putting nails into a bucket of water, for a week, to make the mordant solution. Never thought to use steel wool, to make it even faster. Learned something I can use outside of tabletop game crafting! Cheers!
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Post by erho on Aug 8, 2023 21:23:27 GMT
I got in classes for ET in 97 or so when I was into repairing instruments for some local bands. Ive made some effects boxes and repaired some for sale.. never made much at all!
Ive used this solution before for staining wood(looks aged when dry) but came across a YouTube short where thew guy did just this trying to emulate the commercial bottles that go for $30!
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