



Flattening Horizons/West record Update
I posted last week about attempting to flatten my warped copy of Horizons/West.
My method was using two pieces of concrete, heat them in the oven to ~125°F, then sandwich the record.
My first attempt failed. The record was so cupped that two flat surfaces weren’t enough.
to mitigate that, I cut little strips of felt and placed them around the perimeter of the record to overcompensate for the cupping. Test fit looked perfect.
Second attempt also failed, but for different, and permanent, reasons. 1, the one piece of concrete was too hot; and/or 2, I left it sandwiched for too long.
I now know how to do it, but at the expense of burning the record. You can see the burn marks in the photos, they look like solar flairs shooting in from the perimeter.