I have a Fletcher 8448 wall unit that works great for me. Problem is, it is missing the bar that holds the matboard in place as you cut it. Does anyone have a diagram or photo of what this bar looks like so I can make my own? Does anyone have an old 8448 with this piece? The machine is great, I would just like to have this part. Of course Fletcher has not made them for years and could not help me find a diagram or photo. I would greatly appreciate any help. Thanks!