Hi I am new to this site but not to scroll saws. Not sure if this is the right place to post this question or not I didn't see a repair or trouble shooting category. I have several scrolls in my shop, but there is one that is old and I love using it. Its a Dremel 1571. I pulled it out to use yesterday to cut basic 1/4" wood (birch plywood). Put a new blade on and turned it on. It seems to be working fine but it would not cut the wood. I tried 4 other new blade all different tpi and none would cut. It kind of seems like the blade is not moving up and down as much as my other saws, but I never really paid much attention to that before because it has always cut 1/4" wood before with no problem. Blade is in right (not upside down) I am feeding the wood in slowly and just goes in about a 1/4" or so and it becomes hard to feed the board. The saw doesn't seem to bog down or anything just doesn't want to cut it. Any ideas or thoughts would be great. Thanks