Here is the video. it shows how to take the size of the panel.
we always make the cutting blade according to actual panel, instead of the CAD drawing, because the panel will be slightly different after it comes out of the rollers.

Here are the steps.
1. run the machine, cut the head to make the head of panel neat.
2. forward the panel out of the cutting blade, about 8-10 cm.
3. cover the fax paper on the edge of panel,press the line to get a clean mark of the panel.
4. package the paper, and send to me by express.