How much pressure should you use when you make a score on the glass?
This is a question that I get asked a LOT, so I decided to make a video with a useful pressure test for you to try.
It’s worth remembering that each sheet of glass needs slightly different pressure applied. Some will make the ‘sssssh’ sound and some – like Bullseye opaques for example – don’t make an noise at all.
So it’s a good idea to try this pressure test out on new stained glass that you haven’t cut before. Cut a small piece off and test away! It will give you a feel for how that particular glass responds and how much pressure you need to apply.
In the long run you’ll cut more accurately and waste less glass.
So what IS the key to a perfect scoreline?
Author Joseph Farrell put it brilliantly: “The secret of all power is – save your force.”
Watch the 3 minute video and take the pressure test!