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Polygonal mirror reflection beam Problem

 
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anita1984
Semi Newbie


Joined: 19 Nov 2008
Posts: 7

PostPosted: Thu Nov 05, 2009 2:00 pm    Post subject: Polygonal mirror reflection beam Problem Reply with quote

Hello forum , i have a spindle motor from an HDD and i pasted to this motor 6 facets polygonal mirror, the problem is that the mirrors are not 100% alignment ( it's hand made) and the laser reflected from this mirrors is doing 6 lines ( where it should be one line if all mirrors are good alignment, all 6 lines should be overlap and we can see one line), what do you recommand me a tric to do it to make lines overlap , or a nice method to make another polygonal more profesional.
every facet has a dimension of 3.5cmx1.9cm
Thank you in advance,
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sun Nov 08, 2009 11:36 pm    Post subject: Re: Polygonal mirror reflection beam Problem Reply with quote

anita1984 wrote:
Hello forum , i have a spindle motor from an HDD and i pasted to this motor 6 facets polygonal mirror, the problem is that the mirrors are not 100% alignment ( it's hand made) and the laser reflected from this mirrors is doing 6 lines ( where it should be one line if all mirrors are good alignment, all 6 lines should be overlap and we can see one line), what do you recommand me a tric to do it to make lines overlap , or a nice method to make another polygonal more profesional.
every facet has a dimension of 3.5cmx1.9cm
Thank you in advance,


Sounds like it would be very hard to do by hand however I wonder if using some slow drying epoxy would work? That way you could attach it, spin it and slowly adjust it by eye.
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