Lesson plan
Polar plotter
plotted on a whiteboard polargraph. A polar plotter also known as polargraph or Kritzler is a plotter which uses two-center bipolar coordinates to produce vector drawings using a pen suspended from strings connected to two pulleys at the top of the plotting surface. This gives it two degrees of freedom and allows it to scale to fairly large drawings simply by moving the motors further apart and using longer strings. Some polar plotters will integrate a raising mechanism for the pen which allows lines to be broken while drawing. The system has been used by a number of artists and makers, including: * Jürg Lehni & Uli Franke (2002) * Ben Leduc-Mills (2010) * Alex Weber (2011) * Harvey Moon * Sandy Nobel (2012) *Maslow CNC
Article summary
plotted on a whiteboard polargraph. A polar plotter also known as polargraph or Kritzler is a plotter which uses two-center bipolar coordinates to produce vector drawings using a pen suspended from strings connected to two pulleys at the top of the plotting surface. This gives it two degrees of freedom and allows it to scale to fairly large drawings simply by moving the motors further apart and using longer strings. Some polar plotters will integrate a raising mechanism for the pen which allows lines to be broken while drawing. The system has been used by a number of artists and makers, including: * Jürg Lehni & Uli Franke (2002) * Ben Leduc-Mills (2010) * Alex Weber (2011) * Harvey Moon * Sandy Nobel (2012) *Maslow CNC
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
No sources recorded.
Key claims and bibliography are generated from the same tracked claims and sources as the article page.