I wanted a scroll saw to help cut out model airplane parts quickly. I did a lot of reading and settled on this saw and promptly received it a few days later. Bent. It is very heavy and feels sturdy but after running it for a few minutes, I noticed it had a knock at RPM's above speed 4. A quick google search later showed that this was a prominent problem from older models. After inspecting the machine further, I noticed it was cutting at an angle. No problem, just adjust the set screw and the thumb screw until the blade makes a right angle with the table. After maxing out the adjustment, the blade was a solid 1 degree off. On smaller work pieces, this is barely noticeable. Try to cut a circle on 1" thick wood or stack cut and you will quickly notice that the parts are all different. I took a step back and noticed that the machine's entire top arm was bent about 1/4" to the right which explained everything. A call to DeWalt support later and they said it will be a month before they can look at it. So, I simply bent the thing back - by hand. If I am able to bend this cast iron by hand, it isn't very strong. Now the knocking is gone and the machine cuts straight vertical cuts.