I couldn't fathom out why my scrolling was not going to plan today. I'm new to this scrolling stuff so it was very strange. The wood kept jumping, the blade wouldn't do a curve, my pattern was lifting at the edges. I checked my tension, that was ok. I checked the blade was aligned, it was.. I spoke nicely to the machine, that didn't work. I patted it on it's arm. I promised to give it a good clean later, it didn't care one jot. I cursed the piece of wood I was working with, thinking I'd picked a 'bad un'' off the shelf. Finally I came to the conclusion that the blade must be dull, although I'd not used it much, so I went to change it... and lo and behold.... I'd put it in UPSIDE DOWN !!! A while back I broke my first blade and today I did this, so as I say ''there's a 1st time for everything''. Now having a coffee !!!!!