Import DXF Nesting
Damien Von Sincler2025-05-07T12:48:30-07:00
Damien Von Sincler
All Articles, Import DXF cut files
CAM, cam editor, dxf, edit shapes, file preview, file selection, folder preview, import, import dxf, import project, nest, nesting shapes, optimum, optimumcnc, scale, select file, select folder, shapes library
Let’s talk about the nesting functionality within Optimum CNC CAM module. To access nesting, click on the CAM button in the top ribbon. Here we already have some files loaded in. We’ve added a DXF file and some shapes from the built-in shapes library. For more information on how to add these shapes or a DXF file, you can consult the other videos titled “Import DXF” in the owner’s links.
Require assistance? Tap here.
Press Play & have this next section be read outloud.
We are on the second tab titled “Nested Project.” Within it, we can set our sheet size—let’s say 72 by 72. This will be our rectangle in red into which the shapes will be fitting in. Let’s remove a couple of them to make sure that we can fit all of them in.
Now we can select our distance between the parts—let’s say 1/4 inch—and select our rotations. Rotations are essentially the angles to which your parts can be rotated. For instance, if we select four rotations, that means four positions: 0°, 90°, 180°, and 270°, to which each of these individual parts can be rotated. If we select eight rotations, that means that we can now rotate to 0°, 45°, 90°, and so on. For 16 rotations (our maximum), this will allow you to more granularly adjust the rotation of each individual part.
However, please note that for complex contours or for a large number of parts, we typically recommend sticking with four rotations, as this will allow for a quicker nesting procedure.
Next, after we have added our parts, we can click the Start Nesting button. After some time, the project will be nested. So here we have added these parts into our rectangle and it is now constrained.
Let’s say we add some more files—perhaps from the shapes library. Let’s select the eight rotations button and press Start Nesting. Now we can see that these have been rotated to 45° for some of the files, and we have added more shapes to our nested project.
Once we are satisfied and we have checked that our cutting sequence, leads, and overall settings are correct, we can import this project by pressing the green button in the top right corner. From here on, we can press Play as usual to start cutting this project.
Press Play & have this next section be read outloud.
Nesting allows the user to quickly fit parts and shapes inside a rectangle of a specified width and height without having to utilize an external CAM/CAD software. The following options are available:
• X & Y for the size of the nesting project. This will create a rectangle (shown in red below) that will function as the constraints for the nesting.
• Distance between the parts
• Rotations. Rotations signify the number of possible angles to which the nested parts can be rotated to – for instance, 90°signifies that only four angles (0°, 90°, 180° and 270°) can be used, 45° signifies that angles of 0°, 45°, 90°, 135°, etc can be used, and so on. For a large number of nested parts and complicated contours, we recommend a 90° setting for the Rotations option in order to speed up the nesting process.
• Start Nesting button to initiate the process. Note that large/complicated files may take up to several minutes for the nesting process to complete. The progress bar indicates that the nesting process is currently running. The system will check a number of possible permutations for the nesting positioning. The exact calculation of the nesting position may be different for each run of the nesting process.
Definitions for the Nesting options
Sheet Size: To build your nest, you will need to set the dimensions for the area where you would like the parts to nest within. Under the Nesting Options Sheets Size, you will find X and Y fields to type in your dimensions for your nest size.
Distance: After setting your nest area, you’ll need to set the distance between the nested parts. Under the Nesting Options Distance, you will find a field to type and set the part to part distance in inches.
Rotations: Rotations are essentially the angles to which your parts can be rotated.
-
4 degree markers (Every 90°)
Angles: 0°, 90°, 180°, 270° -
8 degree markers (Every 45°)
Angles: 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315° -
12 degree markers (Every 30°)
Angles: 0°, 30°, 60°, 90°, 120°, 150°, 180°, 210°, 240°, 270°, 300°, 330° -
16 degree markers (Every 22.5°)
Angles: 0°, 22.5°, 45°, 67.5°, 90°, 112.5°, 135°, 157.5°, 180°, 202.5°, 225°, 247.5°, 270°, 292.5°, 315°, 337.5°