My group, Robot Garden, out in Livermore just got our Laser cutter up and we are planning on building the ROV over the next few weeks. I noticed that the sheets and cutter base used is 24x18. Our unit is 20x12. I am just now learning how to use the cutter (laser cutters and 3D printing in general is new to me) and have yet to look at the files for the ROV, however, is it a major deal to modify the cutter files such that our 20x12 can still fab all the parts? I assume it is not, but just a few pointers would help if anyone has any.