*"The mirrors are continuously in motion during the printing process. The accele... | Hacker News

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Someone on March 13, 2012 | parent | context | favorite | on: Our 3d printer is better than yours

"The mirrors are continuously in motion during the printing process. The acceleration and deceleration-periods have to be tuned very precisely to achieve high-resolution results at a record-breaking speed."

Isn't this a solved problem in laserprinters by using polygonal mirrors?

tintin on March 13, 2012 | [–]

With polygonal mirrors you have to wait for the perfect moment to pulse the laser.

I think these are just galvanometers. Seems like they have to 'predict' the motion of the mirrors for accuracy and speed.

tlrobinson on March 13, 2012 | [–]

Interestingly, similar work is currently happening in MakerBot community: http://www.thingiverse.com/thing:17855

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