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Jeff Higgins Jeff Higgins is online now
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Join Date: Mar 2004
Location: Higgs Field
Posts: 22,766
Quote:
Originally Posted by sammyg2 View Post
I was just looking at a blueprint of a machine my shop is repairing (yes, a real blue print).

I checked the date, the print is almost exactly 1 year older than I am.
All done by hand, no 'puters, by a real drafting artist.

I wish I could show you some of my drawings from early in my career. All done "on the board", by hand, on vellum. Our drafting tolerance was +/-.030" from nominal, and the dimensionally stable copies of our vellums were meant to be scaled by the shops who were producing what we were cooking up. We only dimensioned where tolerances were tighter, or for some other special reason. We used lettering guides to ensure uniformity of the text and whatnot. By the time we sat down at the drafting board, we really had to know and understand what we were about to capture for posterity on our drawings. I first started using CAD in the mid '80's (CATIA V2R2), and now use CATIA V5 and ENOVIA. I still have a big old green topped drafting table in my cube, though, since every now and then we have to go out and fix an old airplane, and I get to whip out those old vellums. Me and my equally old fart partner are the only two in our group who still do this stuff.

Oh well, 'nuff of that. Random pic:

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Jeff
'72 911T 3.0 MFI
'93 Ducati 900 Super Sport
"God invented whiskey so the Irish wouldn't rule the world"
Old 12-03-2014, 05:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    #64854 (permalink)