PCB Design: Create 3D Component in a Footprint Library
In today’s PCB design process, you need to be able to integrate mechanical design workflows into an electrical design tool. Transferring inaccurate design data back and forth between the ECAD and MCAD worlds not only causes frustrations for both design teams, but can also drastically increase the number of design spins required to fit the PCB into its final assembly. And regardless of the electrical design tool’s 3D capabilities, without accurate component 3D layer modeling information, you can’t accurately analyze mechanical clearances.
Does Your Design Tool Support 3D Modeling?
Different EDA environments offer different levels of support for 3D modeling. Some have none at all, so all mechanical information needs to be supplied by an MCAD tool. Others use outdated methods like DXF or IDF to exchange information. Altium Designer® supports embedding STEP models to provide accurate modeling information that can not only be passed over to the MCAD world, but can also be used directly in ECAD tools.
There may be situations when you either can’t or simply don’t want to use a STEP model for snap points. You may not have an internal MCAD department. You might not own any 3D MCAD tools. Or maybe your organization doesn’t allow externally-sourced CAD data of any sort, thus preventing you from downloading the models. Other PCB assembly security restrictions may prevent you from accessing the Internet altogether.
Fortunately, Altium Designer provides you with PCB layout tools to fully establish the mechanical details of your components. That way, the info will carry through to future schematic or PCB layout projects. This is ideally done in the footprint itself (.PcbLib), but can also be done right at the board level (.PcbDoc) for one-off situations.
How to Create Your Own 3D Component Bodies
Altium Designer provides three basic 3D shape types for creating mechanical models: Extruded, Cylinder, and Sphere. Each of these can be used alone or in combination with one another. The Cylinder and Sphere types are self-explanatory.
Using these simple shapes, a large variety of surface mount and through-hole components can be created, ranging from a simple circuit to a surprisingly complex component. Learn how to create your own 3D Printed Board component bodies and speed up your PCB layout process in Altium Designer by downloading a free white paper.
Check out Altium Designer in action...
3D Clearance Checking of Flex Mounted Components