Make Changes to Laser Cutting Design

I need some small modifications to some svg files that I created. It is basically two boxes. The top box holds air and has some holes for tubes and what not. The bottom box just holds the electronics. There was a separate box to hold an lcd screen and buttons but those will be removed. The lcd screen will be placed in the bottom electronics control box on the side. It will be screwed to the side panel. The new acrylic pieces are 3.2mm thickness. In the first it was just 3mm thick. Also some of my measurements were wrong in the first draft, so when the pieces were cut it didn't fit together nicely. Also I am using a new laser cutting machine found here. [login to view URL] So the sheets I will be using are 12 inches by 8 inches instead of 12.1 inches in the current svg files. I'm not sure what software the new laser cutter uses yet but I would assume it would accept a svg file or something similar. And design changes you can make to make it fit together easier and also look cooler, that would be great. Please see attachments. Thank you.