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what would cause a laser to mark CD's with circles

I would like to know what is causing my laser to make 2 circles about a 1/32 " from each other. I noticed this recently after a ring was removed from around my laser. Now discs are picking up this circle like indentation on their playing area near the center. One is now mistracking.
I stopped using the machine until I figure this out!
goldenears

Showing 1 response by rx8man

rx8man's avatar
rx8man
1,475 posts
 
This happened on my top load transport.
The plastic piece surrounding the laser was slightly convex.
I removed it and carefully applied a heat gun to it while pushing down in the opposite direction.
As it cooled, I continued applying pressure and it straightened, no more scratchy for me.
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