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- Aug 10, 2008
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im building my own galvo's for a scanner(based on Chan's design)
the build is going smooth so far.
the question i have is... what is he using for position detection of the galvo.
i see no IR detector/emitter or optical encoder.
what would be a fairly simple position detection that i could integrate into the build.
this is his site
ELM - Home Built Laser Projector
i have found another build that uses the IR emitter and detector. is this precise enough for vector based graphics.
the build is going smooth so far.
the question i have is... what is he using for position detection of the galvo.
i see no IR detector/emitter or optical encoder.
what would be a fairly simple position detection that i could integrate into the build.
this is his site
ELM - Home Built Laser Projector
![galvo.jpeg](http://elm-chan.org/works/vlp/galvo.jpeg)
![galvos.jpeg](http://elm-chan.org/works/vlp/galvos.jpeg)
![galvo.png](http://elm-chan.org/works/vlp/galvo.png)
i have found another build that uses the IR emitter and detector. is this precise enough for vector based graphics.
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