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<blockquote data-quote="David-Karratha" data-source="post: 630763" data-attributes="member: 22207"><p>My (old school railway) apprenticeship, had an inordinate amount of scraping. We scraped white metal bearings, to suit axles & crankshafts. We scraped air brake components to make air-tight slide valves. We scraped our surface plates to be perfectly flat, so we could use them as masters for scraping other stuff. We even scraped cross-hatching patterns onto the sides and faces of machinist vices etc that we made, simply as decorative finishes.</p><p></p><p>As a fitter & machinist, if something broke, you were expected to fix it. Whatever needed replacing, you made new from scratch. Crankshafts would be re-ground if possible. If too damaged, wed give them a skim to remove the worst damage, respray them with new metal (metal-spraying seems to have gone the way of scraping) and then wed regrind them. </p><p></p><p>Not being able to rebuild something, was a real embarrassment. </p><p></p><p>This is where I segue into another long-winded, grandpa Simpson story</p></blockquote><p></p>
[QUOTE="David-Karratha, post: 630763, member: 22207"] My (old school railway) apprenticeship, had an inordinate amount of scraping. We scraped white metal bearings, to suit axles & crankshafts. We scraped air brake components to make air-tight slide valves. We scraped our surface plates to be perfectly flat, so we could use them as masters for scraping other stuff. We even scraped cross-hatching patterns onto the sides and faces of machinist vices etc that we made, simply as decorative finishes. As a fitter & machinist, if something broke, you were expected to fix it. Whatever needed replacing, you made new from scratch. Crankshafts would be re-ground if possible. If too damaged, wed give them a skim to remove the worst damage, respray them with new metal (metal-spraying seems to have gone the way of scraping) and then wed regrind them. Not being able to rebuild something, was a real embarrassment. This is where I segue into another long-winded, grandpa Simpson story [/QUOTE]
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