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Designing PCBs for 3D printing can follow one of two routes: additive or subtractive manufacturing. Your PCB design software should be adaptable to either technique and should have the capability to generate the files required for your 3D printer to accurately lay etch or deposit your traces. Working in Altium Designer’s unified design environment integrates your design tools in a single interface. Altium Designer offers the only design package with tools that can adapt to any fabrication strategy.
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A PCB design software package with the best CAD tools that are adaptable to 3D printing.
3D printing is a convenient way to create just about anything the mind can imagine. You can create practically anything with a 3D modeling program and print it out within the comfort of your home, even with a desktop 3D printer. However, 3D printing electronics has remained somewhat out of reach, with only a number of companies and individuals manufacturing the required equipment. Even if you have the required equipment, you are only halfway to your goal of 3D printing your own PCBs.
3D printing a PCB requires electronics design software that includes ultra-accurate CAD tools and 3D modeling tools. Your printed circuit board design software requires more than just the standard schematic and layout tools that come with other design software packages. You’ll need a design package that allows precise definition and visualization of each element on your PCB, including surface traces, components, and unique board shapes.
Many of circuit board printers on the market can be used to lay traces of conductive ink, and you’ll subsequently have to assemble your device by gluing components to the fragile circuit board. Your 3D printer needs a copy of your trace layout, and a conductive is deposited directly on the board.
Instead of using a subtractive fabrication method, you can create an inversion image of the conductive traces on your printed circuit board. You can then etch your conductive traces from a copperized glass fiber plate. Combining a diode laser with the CNC capabilities of a 3D printer allows you to selectively etch off unused copper. You can then solder SMT/SMD components to your board with a low temperature solder.
Using a 3D printer to fabricate your PCB is a great way to start building a functional prototype of a new device. Whether you are removing copper foil from your PCB by etching or removing a fine layer off a photosensitive board with laser and selectively exposing copper, you’ll need design software with accurate CAD tools to define your layout. Your PCB design software should also generate 2D or 3D CNC data for your printer directly from your layout. The best PCB software allows you to use either additive or subtractive techniques for fabrication.
3D viewer in Altium Designer
Routing traces in your PCB layout requires obeying a set of design rules that ensure your device will meet its functional requirements. Many 3D printers can etch traces as thin as 0.2 mm. Your layout software can save you a significant amount of time with your layout when you can define design rules in your PCBs. Your PCB design software package should give you the power to specify your trace width and should help you automatically route traces between components.
Newer 3D printing systems can also be used to fabricate multi-layer PCBs with a machine the size of a small office printer. If you are planning to fabricate multi-layer PCBs with a 3D printers, your design software needs to include an intuitive layer stackup manager that allows you to completely customize your layer arrangement.
Your trace routing tools should do more than just define trace sizes and automatically define traces between components. Your design tools should interface with your design rules and routing directives, allowing you to route accurate traces and design a layer stackup for any application. You should also be able to define the copper weight used in your traces and quickly translate this information into G-code, Gerber, or DXF files for your 3D printer.
Close-up 3D view in Altium Designer
Other design packages separate your critical design tools into separate modules. Only Altium Designer integrates these tools into a single design environment, and these tools are adaptable to any fabrication method. Altium Designer is the only PCB design software package that has unified MCAD and ECAD design, making these design tools perfect for designing PCBs for 3D printing.
The 3D design features in Altium Designer have set a new standard in the PCB design software industry. The unified design model in Altium Designer integrates your design tools into a single interface and allows you to use them for 3D ECAD design. Instead of using separate pieces of software for different design tasks, try working in the only PCB design software package that unifies your tools in a single interface.
If working with separate programs is hampering your PCB design process, you need to work in a unified design environment. Altium Designer integrates your schematic design, routing, and rules checking features into a single interface. The 3D viewing and design features make designing PCBs for 3D printing easy, allowing you to reduce your fabrication times from weeks to hours.
3D printing is the wave of the future and may even replace conventional PCB fabrication processes. A great PCB design software package like Altium Designer makes it easy to customize every aspect of your PCB design and generate the fabrication data required for your 3D printer. You’ll have access to the best design, routing, rules checking, and simulation tools, and all within a single design environment.