This is an interesting concept, but the square drive is not compatible with most of the door hardware made for th US in the past 35 years. Go to Home Depot or Lowe's and see for yourself. Neither the cheap stuff not the good hardware uses that system any more. There is some institutional harware that still uses the square drive, but that package shown would wear out in less thanm a week, unless the plastic is much more durable than the PE, which is what it looks like.
So it will be very interesting to see if there is any succes in this product and concept.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.