Email your DWG/DXF site plans for evaluation.
Include the model scale and site boundary.
Contour lines need to be coverted to solid a model and then to STL.
We also accept CAD files in STL format.
Example, CAD Program Is AutoDesSys Formz
This is a stepped contour base model. The source data is a DWG file  derived from survey data with 1 meter contours. The area of interest is shown in .
A border was drawn around the site . Side view  shows the contour elevations.
The model was scaled to 1:200 scale. A solid model was extruded and positioned inside a 21" x 34" box with lower left corner at the origon.  shows a top down view of the boxed scaled model. The exported STL file is shown in .
The roads and lot lines for laser marking were overlayed on the model to verify feature alignment . Some corner registration marks a placed in the image for aligning the border for laser marking. The solid model is deleted leaving the 23" x 34" box and the features to be marked . After coloring the box white, turning off the world axis, grid lines, reference plane axis and setting the display size at 11500 x 17000 pixels ... the image for laser marking is shown in .
The shape STL file was imported to the CNC printer for cutting. False color contours are shown in . A rendered view of the solid model is shown in .
The finished model  has 7.75" overall height, contour height .19685" (1 meter at 1:200 scale), 35 contours, and 6.89" relief.
Source Data: DWG File Area of Interest Bordered Site Side View of Contours Solid Model SHAPE STL File
1 2 3 4 5 6
Image/Shape Overlay Boxed Image IMAGE Contours SHAPE Perspective View Finished Model
7 8 9 10 11 12