Curves not segments to export as DWG Cad file for laser cutting

Hi Sketchup Ive drawn some mesh panels that are going in a staircase instead of spindles. Ive drawn the circles with the maximum segments to get a smoother curve. The problem the engineering firm has when they open the DWG export are getting loads of 2mm lines ( segments) forming the circle and the laser cutter has to create code for each line. Is there a way to create a continues curve line or weld or something so that each curved section is one piece .

many thanks chris

check out numerous threads:

If you post your file I can run it through Fabber so you can see the results