Cutting a curve in glass using a flame (also known as flame-cutting or torch cutting) is a delicate process that requires precision and care and LN Glazing have the tools, experience and knowledge for just thing skill.

Here are the general steps to follow:

  1. Obtain the right equipment: You will need a special cutting torch or a glassblowing torch with a high temperature flame, a set of hand tools such as a ruler, a glass cutter, glass pliers, and a water source.
  2. Mark the curve: Use a marker or tape to mark the curve of the glass you want to cut.
  3. Heat the glass: Start by heating the glass along the curve you have marked. Use the torch to heat a small area, moving the flame around slowly until you see a red line along the curve.
  4. Cut the curve: Once the glass is heated, use the glass cutter to score along the red line. Be careful not to press too hard, as you don’t want to break the glass.
  5. Break the glass: After scoring, use the glass pliers to carefully break off the curved portion of the glass. Be sure to keep the scored side facing up and apply gentle pressure to the glass in the area of the score. The glass should break relatively cleanly along the score line.
  6. Smooth the curve: Once the broken edge is smoothed, use a water source to cool the glass down.

Remember, glass cutting is a very delicate process, and it takes practice to get it right.  Also, take extra precautions, as the flame from a torch is very hot and can be dangerous if not handled properly.