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A comment on Dry erase board lined with IR sensors to record pen strokes [video]. Parent comment

Re:Dry erase board lined with IR sensors to record pen strok... by toolzytofndpwd on Friday September 11, 2015 @04:40PM (#10206056)
ethanol or methanol will clean it up.
[ Parent | on HN ]
Re:Dry erase board lined with IR sensors to record pen strok... by jonsen on Friday September 11, 2015 @05:01PM (#10206156)
Or a white board pen. Just paint over it with an erasable pen, and it will all go when wiped.
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