Slashdot Mirror
Getting Human Hands Back Into Digital Design
Hugh Pickens writes "Using computers to model the physical world has become increasingly common as products as diverse as cars and planes, pharmaceuticals and cellphones are almost entirely conceived, specified, and designed on a computer screen. Typically, only when these creations are nearly ready for mass manufacturing are prototypes made. But the NYTimes is running an interesting essay highlighting a little-noticed movement in the world of professional design and engineering: a renewed appreciation for manual labor, or innovating with the aid of human hands. 'A lot of people get lost in the world of computer simulation,' says Bill Burnett, executive director of the product design program at Stanford. 'You can't simulate everything.' Fifty years ago, tinkering with gadgets was routine for people drawn to engineering and invention, and making refinements with your own hands means 'you have to be extremely self-critical,' says Richard Sennett, whose book The Craftsman examines the importance of skilled manual labor. Even in highly abstract fields, like the design of next-generation electronic circuits, some people believe that hands-on experiences can enhance creativity. 'You need your hands to verify experimentally a technology that doesn't exist,' says Mario Paniccia, director of Intel's photonics technology lab."
Digitize your hands and use them in your digital environment.
What... no good?
Modeling doesn't actually model everything, and an unknown factor can easily arise. It's easy to design a product, but hard to actually design one that works the first time around flawlessly.
Craftsmen are still needed in meat-space.
It's true that in the world of building design as well that designing solely with computer allows you to overlook flaws with a design, and that a physical model is still the best way to test design. It's also true that you can't sketch an idea in AutoCad, and that the beginnings of a design in any field should be sketched/modelled. It's almost as if when something is conceived on computer it's automatically granted legitimacy.
I dreamed of Freud: What does this mean?
Americans can't afford to waste their time doing things with their hands. That's what low wage countries are for. Americans have to concentrate on the profitable things, like banking, hedge funds, and real estate speculation. You can't get rich with machine shop skills. Or even with the skills to set up an production line. You don't get any respect for that.
A few years ago, I ran a DARPA Grand Challenge team. We had some bright young people with an interest in robotics and the ability to make complex hardware work. Where are they now? One is running a hedge fund in Santa Fe. One went to Bermuda to work for an offshore financial operation. One went to a search engine company. One headed a group developing software inside the iPhone. They're all making lots of money, but they're not doing robotics. They can't afford to.
Yes, it's sad, Yes, it's leading to the decline of the United States. But if you're young and have college loans to pay off, what can you do?
A pedant could argue that if you're using your fingers it's already digital.
good luck with that!. (walks back to computer screen).
"The quality of life is inversely proportional to the number of keys on your keyring."
Gene
Mission: To provide products that consume time and energy as entertainingly as permitted by the laws of thermodynamics.
The first Boing 777 flew and flew exactly as the model predicted.
There was a time when you would make a physical model to see how it will behave, but no longer. They sort of do it with cars but only for the sake of styling. Aerodynamic models are more accurate and styling is more important so there is no need for wind tunel testing.
Modern Cad pakages like SolidWorks, Catia, ProE are amazing and almost a comodity.
Skilled manual labour is a beautiful thing, but is becoming more distant
I am sure there is a SciFi script in this.
G
Luckily the project manager was "old school" and had an SLA made which showed up the problem before the big-cost plastic injection molding dies were made.
Engineering is the art of compromise.
If I'm not mistaken, Isaac Asimov wrote in Foundation's Edge that the reason why humans have developed a technological society is because we have hands. Dolphins and whales have sizeable brains but they lack hands. He even goes as far to say that humans 'thinks' with their hands, in that the hands are manifestations of intelligence.
What you do, is build stuff and fuck the rest of them.
It's that simple.
Perhaps you can't do it on the job --that's the case with me. You can however, do what you want to on your time and the skills you build will provide value for you later on.
There is absolutely no place on this earth where the simple equation for wealth, which is innovation applied to labor over time, does not apply.
We are being told it does not apply here, that we are a consumer economy and that the world would crash if we quit consuming shit.
Don't believe one word of it.
We have the trade deficits today, the economic trouble we do today, for one reason and one only:
We don't carry our weight as Americans. Until we fix that, we will slowly be owned by the rest of the world perfectly willing to carry theirs.
Blogging because I can...
A computer model is far more useful than a piece of hardware on your desk. It does more and costs less.
One important aspect is measurements. There is no easy way to do any meaningful measurements in a microwave circuit unless it is specifically designed for that (and for nothing else.) However a CST or Ansoft model allows you to measure the field, or the current, or whatever else you want in any point of the model (and of the space around it, if you build an antenna, for example.) These measurements will be totally non-invasive, as opposed to a real-world probe that you would have to use. Some RF designs require hundreds of iterations before you achieve the desired compromise between all your design goals. Doing this in a computer will take a month. Doing this in metal will take 10 years.
Another advantage is in parametric design. Usually models are not hardcoded, but defined with a set of parameters (Excel for Autodesk Inventor, built-in spreadsheets for SolidWorks, etc.) You can manipulate these parameters and [almost] instantly see their effect. To do this in a real-world hardware you'd need weeks and thousands of dollars.
Per my current practice, the model is built only as a working prototype, when the design has been done and validated on the computer. This model can be also used as a sales demo, but the main purpose of building it is to verify the calculations, and the quality of the overall design (such as "can it be assembled?")
"Yes Daddy, it's something you know with your skin."
Do not mock my vision of impractical footwear