I'm a novice at woodworking. I started this past year and I have a table top bandsaw I bought at an auction will try to post a picture of it. Every time I use it with the fence it came with the cuts never come out straight. The wood alway comes out thicker at one end that the other. And the blade came off and I don't know enough on how to put it back on. And with my ryobi 2 in 1 disc and belt sander from Home Depot and every time I sand something on the belt sander it doesn't sand evenly when I have it flat on there any suggestions on what I should do to fix this? Thanks.