I have been trying to cut some custom sized picture frames from some spare glass I have. However, trying repeatedly, I can't seem to get the same results I see in video demos or web instructions that I should. Seems that I either break the glass while I'm trying to cut it or it's never breaking the way it should once the mark is made. At first I thought it was that the cutter was too old as it had been in the outdoor toolbox for years, so I picked up a brand new one but the same thing happens. I tried dipping the end in oil (all I had was olive oil) but same thing. I also don't hear the "paper cutting sound" that the videos seem to indicate, so something is not right. Before I try going any further, I'd appreciate any help or suggestions. The cutter I've been using is identical to the one here:
Thank you!