Well, as a bus-pass age bloke in a shed, I use computers now, having been introduced to them at work at the ending of MS DOS and the start of WIN 3. When I retired the organisation was on WIN 7 Pro.
I've even dived into the bewildering world of CAD, using that and spread-sheets to help me design my replica antique steam-wagon; ;though I am not good at learning complicated software.
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The branch, or more accurately brother, of model-engineering that has me in awe is clock-making. As well as the clocks being both beautiful and functional, the skill necessary is far beyond my metal-working, where a Thou' is more often of the Hand not Inch; and an 8BA tap is too small for its own safety.
Ornamental Turning too, not least because it is good to see those lovely old machine-tools still being used as intended. I was a bit surprised though when one demonstrator admitted to me that often the deigning and planning are the interesting phases, but the machining can be very repetitive. You Ornamental Turners are in royal company too – King George III, who was physically ill but not "mad" in a psychiatric sense, became highly proficient at the craft.
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I use CAD – almost always only orthographic for its greater practical value. TurboCAD in fact – it gives you the direct orthographic/isometric choice.
When I bought it from Paul (TheCAD) Tracey's stand at one of the model-engineering shows, it was the only engineering-biased and comprehensive CAD package readily available and affordable in a one-off purchase to amateurs.
Looking at his web-site the other day, it seems that the present equivalent of my TC Deluxe 19 also follows those sales criteria; and I must admit I'm surprised most of the CAD-comparing threads on this forum don't mention it.
TurboCAD was advertised in ME and MEW at the time, but it was my seeing the SolidWorks they used at work that showed me what CAD can do, although I did not use it there myself. My contact with the drawing office was emptying the shredders!
I was introduced to computers c.1989 when I changed employment, in MS-DOS / WIN 3 days; so probably pre-CAD. In the previous employment, a "layer" was a pencil drawing under the one being drawn on tracing-paper, and the Head Designer's desk was identifiable as the parallel-motion board set horizontally and buried in paperwork.
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As for knowing that wherever you put something is never where you find it eventually find it, or forgetting the tapping-drill numbers for Lowenhertz Threads, it seems all these lock-downs have affected many people's mental sharpness and memory, because we have not been having the range and quality of the social and other activities keeping us alert.
Even so, I reckon homes have black holes – tiny ones, but bigger than those the LHC might make and which terrify politicians. They must do. Invisible by definition, they suck in objects, then, too small to sustain themselves, dissolve into the aether and drop the items randomly. How else to explain my once being unable to find my calculator, then my slide-rule, in desperation using logs (for an awkward model-engineering design "sum" ) – then finding the lost sum-box three weeks after buying its replacement. I knew I could not have put it in the drawer in which I was looking for something else.
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Now… what was I going to do today… Oh yes. I remember.
Try to repair a cock-up on my steam-wagon's chimney saddle. I don't fancy having to make a new one (fabricated, not cast). I'd tried welding over a weld-slag hole, and made the hole even bigger.