Anyone have any leads for a fellow hobbyist who would be willing to do a small styrene laser cutting? I can do the CAD designs, but I dont have a laser to cut the styrene.

Here's my project. I need to make about 30 curved roof ribs for my snow dozers roof. I was thinking about cutting them out of .030 to .060" thick styrene and than gluing the bottom and top sheets over the ribs.

Howdy everyone

Hi from Argentina. I live in a small house with my family, and due to lack of space, found this way for have a layout. Is a floating shelf that contains a small switching layout and serves to store other house stuff. I made it taking into account the available space and it was carefully designed to aestetically fit with the existing furniture in my dining room. It works as a decorative piece when not in use, which means 99,9% of the time. For me, is very rewarding to watch my trains when I´m home, and furthermore is like to have a 3D picture in the middle of the room.

As I get ready to build the sectional benchwork of the layout, I am wondering what the equivalence is between plywood and dimensional lumber.  Typical L-girder construction uses 1x3 or 1x4 dimensional lumber (clear pine or poplar) which is actually 3/4 x 21/2 or 31/2.  I am using nominal 3/4in (23/32) 7 ply plywood acquired on sale at a big box store. 
Would a 3 inch strip be equivalent to a 1x4 for the 8ft dimension of a 2x8ft top? 
(note: I plan on wood for cross members to allow for edge screws.