XPost: alt.home.repair, sci.electronics.design   
   From: bobnospam@gmail.com   
      
   On 7/16/2023 11:34 AM, Dave Platt wrote:   
   > In article ,   
   > micky   wrote:   
   >>> Don't.   
   >>   
   >> Do you think the cleaning disk can make the situation worse?   
   >   
   > They can.  I've heard of cases where the brushes on the disk knocked   
   > the lens assembly out of alignment, completely ruining the drive.   
   >   
   > Also, if there's a layer of persistent dust or other gunk built up on   
   > the lens, then the brushes on the cleaning disk may abrade the lens   
   > surface when brushing it off.  Scratches like this cannot be repaired,   
   > and once again you're likely to have a ruined drive if this happens.   
   >   
   > Some forms of lens contamination simply can't be removed by a cleaning   
   > disk.  For example, if anyone has ever smoked (tobacco or cannabis or   
   > ...) in your car, then there's a good chance that the lens has been   
   > coated with smoke particles and tar.  Tobacco-smoke tar is extremely   
   > difficult to remove, even with proper cleaning fluids (the Consumer   
   > Reports magazine uses it as its exemplar of a "hard to remove" surface   
   > film).  I have no reason to believe that cannabis tar is any less   
   > damaging to an optical drive.   
      
   I once read that mechanics on commercial airliners would find cracks in   
   the skin of the airplane by looking for the resulting nicotine stains on   
   the outside.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)