When working with custom baseplates in Nucleo, one of the most common frustrations users encounter is the persistence of an old predrawn baseplate even after switching to a new one. The root cause typically lies not in the software’s functionality but in how layers are named and managed within the file structure—specifically, the misalignment between user-drawn elements and imported DXF templates.
The primary challenge stems from a naming inconsistency between two distinct layers used for baseplate data: UserBasePlate and PreDrawnUserBasePlate. These layers serve different purposes but are easily mistaken for one another, especially when working with multiple files or templates.
When you import a new baseplate from the dropdown, the software checks for existing geometry on the PreDrawnUserBasePlate layer. If any such geometry exists, it may not be automatically removed—even if you’ve switched to a new baseplate—because the system treats the old drawing as a separate entity on a different layer.
This layer confusion is the main reason why the old baseplate appears to "stick" even after replacing it. The software doesn’t recognize the new DXF as a replacement if the old drawing remains on the wrong layer.
The solution is straightforward once you understand the layer logic. Here’s what you need to do to resolve the issue and prevent it from recurring:
Verify the Layer Assignment of Your New Baseplate
Ensure that the new baseplate you’re importing is placed on the UserBasePlate layer. If it’s on PreDrawnUserBasePlate, the software will treat it as a user-drawn element, which can lead to conflicts.
Clear the Old Baseplate from the Wrong Layer
Open your VDM file and navigate to the layer manager. Locate the PreDrawnUserBasePlate layer and check if any geometry remains from the previous baseplate. If so, delete all elements on this layer. This step is critical—leaving old lines or arcs here will cause the software to retain them during processing.
Uncheck the “Merge Pre-Drawn Lines/Arcs” Option
In the baseplate settings, look for the option labeled Merge Pre-Drawn Lines/Arcs. This setting tells the software whether to combine user-drawn baseplate elements with imported ones. If this box is checked, the software will attempt to merge the old manual drawing with the new DXF, which can result in overlapping or persistent geometry.
Unchecking this box ensures that only the imported DXF baseplate (on the UserBasePlate layer) is used, effectively ignoring any legacy data on the PreDrawnUserBasePlate layer.
Re-import the New Baseplate
After clearing the old layer and disabling the merge option, re-import your new baseplate. It should now appear cleanly without any remnants of the previous design.
To prevent this issue from recurring, follow these best practices when creating or updating baseplates:
Always Use the Correct Layer for Imported DXFs
When selecting a baseplate from the dropdown menu, ensure the imported geometry lands on the UserBasePlate layer. If it doesn’t, manually move it there using the layer manager.
Avoid Drawing Baseplates Manually Unless Necessary
If you’re using a standard template, avoid redrawing the baseplate using lines or arcs. Instead, rely on the pre-made DXF options. This keeps your workflow consistent and reduces layer clutter.
Regularly Audit Your Layers
Before finalizing a design, review all layers in your file. Look for any unused or outdated geometry, especially on the PreDrawnUserBasePlate layer. A quick cleanup can save time and prevent unexpected results during processing.
The issue of old predrawn baseplates not deleting is not a flaw in the software but a consequence of layer mismanagement due to confusing naming. By understanding the distinction between UserBasePlate (for imported DXFs) and PreDrawnUserBasePlate (for manual drawings), you can take control of your design environment and avoid unnecessary complications.
The fix is simple: clear the old layer, uncheck the merge option, and ensure new imports are placed on the correct layer. With these steps, your baseplate updates will be seamless and reliable.
Moving forward, the team is committed to improving layer clarity through better naming conventions and user guidance. Until then, adopting these practices will ensure your projects run smoothly, your designs remain clean, and your workflow stays efficient.
Remember: the key to avoiding layer confusion isn’t just knowing the rules—it’s consistently applying them. With a little attention to layer management, you’ll eliminate one of the most common pain points in baseplate workflows.