I’ve been looking at computer graphics and engineering CAD systems for most of my life. I’ve been a more or less continuous user of CAD systems for over thirty years now and I thought I knew most of how it came about. There have been things I never really understood about how the way things worked in CAD as opposed to how a designer or drafter thinks, but I didn’t think to look into that very deeply.
Recently I created a post about the history of machine tools. Here’s that post.
https://theartsmechanical.wordpress.com/2016/11/09/machine-tools-and-the-men-who-created-them/
Since I did that post I’ve found some great pictures, links and videos of the tools and how they changed over the years.
Back when I started this blog I posted some pics from the Watts Campbell factory in Newark NJ, a more or less early 20th Century steam engine factory that was stuck in amber for fifty years.
This article appeared on a blog I read.
This is wonderful work.
http://hamlertools.blogspot.com/
The casting and engraving work is just incredible.
MIT’s robotics lab has posted the videos from it’s basic machine shop class.
http://techtv.mit.edu/collections/ehs-videos
A Youtube playlist.
This Is doing things the HARD way.
This shop is typical of small shops until electric motors became common.
The art of fine gunmaking is still a vibrant craft. Just don’t ask how much one costs. The amount of skill required to manufacture a fine shooting piece takes a long time to develop and a great deal of patience. That does NOT come cheap.
Your life may depend on it.
Machine tools don’t care what you look like. They have demons inside just waiting to grab something and make a real close but very dangerous friendship with you. It’s better to have things like sleeves and hair tucked away where the machine cannot grab. It’s better to be safe than stupid. Don’t spoil your fun by being stupid. I’ve been banged or cut up enough times to know what that’s like far too many times. Besides blood doesn’t look good on your parts.
The making of a truly accurate rifle depends on the manufacture of the barrel. Here is the processes described.
http://www.firearmsid.com/feature%20articles/rifledbarrelmanuf/barrelmanufacture.htm
The big problem seems to be that Pratt and Whitney machine is no longer in business.
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