Control Liquid PCB different from other PCB programs

Liquid PCB was designed from the point of view of the user. I think that the computer should take as much work from the user as possible, while still giving them the freedom to produce an excellent design. It should be possible to navigate the interface using as few mouse clicks as possible.
Liquid PCB actually uses the immense power of your computer’s CPU and GPU to help you. Rather than sitting idle, waiting for a mouse click, Liquid PCB constantly enforces your design rules, and optimises your track, component and via placement. You are not confined to straight tracks at 45° angles, nor to components at 90° angles. Drag tracks wherever you want, even squeeze them into small gaps, and let Liquid PCB sort it out.

Liquid PCB also has a user interface which has been designed specifically to reduce the amount of clicking and fiddling you have to do. Many functions can be accessed with only one, or sometimes zero clicks.

LiquidPCB is aware of the flow of information into and out of your PCB project. For example, a typical PCB will use a netlist, generated from a schematic capture package. It may also use a 3D model file from a CAD package. These are the inputs Rather than simply importing these files into LiquidPCB, you create a dependency on them. So, if any of those files are modified, LiquidPCB will automatically inform you, and give you the option to update.
Likewise, Output files generated from the PCB (Gerber, engineering drawings, BOMs, etc.) will be automatically updated when the PCB changes.

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Control Softwere PCB and Schematic Diptrace (free)

Are you looking for a professional and easy-to-use PCB Design software with powerful autorouter and reasonable price?

Try DipTrace and you will be surprised! DipTrace is a complete state-of-the-art PCB Design System. It includes:

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  PCB Layout — PCB design with an easy-to-use manual routing tools, shape-based autorouter and auto-placer.
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  Schematic — Schematic Capture with multi-level hierarchy and export to PCB Layout, Spice or Netlist.
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  Component and Pattern Editors — allow you to make new parts and footprints.
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  Standard Libraries - include 100,000+ parts.
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  Import/Export Features - allow you to exchange designs and libraries with other EDA tools.
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  Step-by-Step Tutorial - learn the software and start real work in a few hours.
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  Full featured 30-day trial and 300-pin Freeware versions are available for evaluation.

Watch DipTrace in action! Download DipTrace now! Schematic Capture PCB Layout

DipTrace provides the following features:

Easy to learn user interface
To design a schematic, simply select and place components onto your document and connect them together using the wire and bus tools. Multisheet and hierarchical schematics are supported. Then select the menu option 'Convert to PCB' to convert the schematic to PCB. Layout can be updated from Schematic in a few clicks at anytime. When you create or edit design objects they are highlighted to improve your work. Step-by-step tutorial guides you through the design process and allows to get started with ease.

Smart placement and auto-placement features
After converting Schematic to PCB layout, place board outline and arrange components. Then use "placement by list" for chips/connectors and auto-placement for other components to get acceptable result in a few minutes and start routing.

Easy to use manual and powerful automatic routing
DipTrace PCB software includes 2 automatic routers (Shape-based and Grid-based). Shape Router is able to route complex layouts with SMD components as well as single-layer boards. Grid Router can also make single-layer boards with jumper wires. With Specctra DSN/SES interface you can use external shape-based or topological autorouter. Intelligent manual routing tools allow you to create and edit traces by 90, 45 degree or without any limitations. Curved traces are supported. Through, blind or buried vias can be used in automatic and manual routing. Board size is not limited.

Shape-based copper pour
Powerful copper pour system can help to reduce your manufacturing costs by minimizing the amount of etching solution required. To use it, all you have to do is insert a copper area on your board in the PCB Layout program and any pad or trace inside the selected area will be automatically surrounded with a gap of the desired size. Using copper pour you can also create planes and connect them to pads and vias (different thermal types are supported).

Advanced Verification Features
Schematic and PCB design modules have number of verification features that help control project accuracy on different design stages: The ERC function shows possible errors in Schematic pin connections using defined rules and allows you to correct errors step-by-step. DRC function checks the clearance between design objects, minimum size of traces, and drills. Errors are displayed graphically and you can fix them step-by-step and rerun the DRC in one click after any corrections. Net Connectivity Check verifies if all nets of PCB are electrically connected. This feature uses traces, copper pour filled area and shapes to control connectivity, then reports broken and merged nets with area details. Comparing to Schematic allows you to check if routed PCB is identical with Schematic. 

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