I have an unused acrylic plate also that takes 20 blades. I decided to go for less blades and use the one provided from quilters cache. I got my circle all sewed together last night. I was pressing it down when I heard crackling coming from the iron. Then I saw sparks and smoke coming from the cord where it attaches to the iron. I quickly unplugged it but left it on the dresden plate. Luckily the plate was not scorched and nothing happened with the iron. Glad I was standing there when it happened. The smell was terrible. Guess I have to go buy a new iron today.