7 ms·

If I sell someone a sheet of A4 paper for $100, have I not swindled them?

• notmarkus 14y ago
  Unless you lie and tell them that it's something other than a sheet of A4 paper, no, you haven't swindled them. You sold a sheet of A4 paper at the price that someone was willing to pay.
  • jrogers65 14y ago
    > Unless you lie and tell them that it's something other than a sheet of A4 paper Which is exactly what has happened here on two counts - 1) it is not a world first - http://www.thingiverse.com/thing:4156 http://www.thingiverse.com/thing:4156 2) it is not a 3D printing pen, it's just an extruder - exactly the same mechanism as that used in a glue gun.
    • notmarkus 14y ago
      1. The item on thingiverse isn't referred to as a 3D pen. 2. Extrusion is the mechanism through which most 3D printing works. In this case, the extruder is attached to your arm rather than to a machine.