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Polaris Motion Control System

The Polaris Motion System includes powerful easy-to-use software, controllers, drives and peripheral devices for everything you need to control a state-of-the art OEM machine tool.​

The controller and drives are connected using PMDi’s Gbps real time motion control network Mercury™. The controller uses Intel processors running standard Linux and real time electronics to manage all the motion, data acquisition and networking tasks. A Polaris drive provides power to the actuator, computes its own servo loop, and responds to the controller. A dedicated processor in each drive makes higher order feedback filters possible. Servo rates as high as 100 kHz may be achieved. Other Polaris components include digital I/O, analog I/O, and pulse & direction modules.

The following illustration shows a typical Polaris system configuration for a CNC laser micro machine. By using all native Polaris drive components the best possible coordination and synchronization are achieved.

 

Fig 1: Polaris Motion Control System using Native Polaris Drives for Best Coordination and Synchronization


In addition to native Polaris drive technology, we offer an easy interface to third party drives, ac servo motors and third party Galvoscanner systems. Several Polaris modules make this possible including, a four axis pulse/direction module, a 4 axis +/-10V servo module, and for 3rd party Galvoscanners we have 3 axis XY2-100 and SL2-100 modules.

 

Fig 2: Polaris Motion Control System Interfacing with 3rd Party Drive and Galvoscanner Systems

 

Performance Motion

The Polaris motion controller features advanced path planning including G-code processing, cubic splines, PVT profiles, and jerk control. Example setpoint rates as high as 50,000/s per axis for a system having 8 axes of motion. The Polaris controller and drives perform double floating point calculations for the highest resolution and dynamic range of any motion control system in the industry.

The servo loop executes in the drive where the loop rate is guaranateed. Polaris amplifier drives are used to control demanding actuators, including brushed and brush-less dc motors, voice coil actuators and Galvoscanner motors.

Polaris drives offer high-speed, high-precision synchronization of servos and Galvos with laser and camera triggers.

Powerful Computing

The Polaris motion controller connects to a machine HMI over Ethernet. Gigabit Ethernet is supported with a high bandwidth data transfer mechanism. The controller has a large permanent memory which can be used to store motion programs, G-code files, configuration files and can be used for data logging. The controller manages all real time motion and real time networking tasks with its powerful Intel processor and fast digital logic.  

Customization

Polaris’ software is customizable, allowing users to create their own motion control processes,  C programs and user defined G-codes. Custom path planning algorithms may be implemented, as well as custom kinematics. Our advanced Servo Processing Unit (SPU) provides customers freedom to develop their own servo loops and digital filters. 

 

Real-Time Network Technology

Polaris uses Mercury™ , our high speed communication technology between the controller and drives. Data is transferred at Gigabit per second speeds with zero data loss.  Mercury uses synchronous, asynchronous and streaming data transmission. Sharing data among devices make multi-input, multi-output (MIMO) control possible. Mercury technology allows Polaris to achieve the highest control and data acquisition rates in the industry.

 

Polaris Software

Polaris software makes advanced motion control easy. Several components make up the software suite: Polaris motion server, Polaris motion libraries, Polaris communication, MotionTools and Polaris CNC Oi.

MotionTools is a machine setup and tuning utility. It provides for axis configuration, has a real time oscilloscope, functions for automatic commutation of brushless dc motors, servo loop implementation and more. It can be used to edit, compile and transfer motion programs and G-code part files to the controller.

The Polaris communication makes communication between the client HMI PC and Polaris controller easy. Using Polaris communication, customers can build their own HMIs. Polaris communication optimizes the speed of data transfer between the client HMI PC and Polaris controller for fast motion command execution, script calls and wide bandwidth data collection. 

Polaris Server runs on the controller under Linux and consists of communication and motion control components. This is where the path planner, motion scripts and processes are executed and where the G-code files are parsed. The motion control interface library and G-code library are located here. 

 

Polaris CAD/CAM

Polaris CAD/CAM isw a control center for your laser machine. You can design your motion path for positioning stages and Galvoscanners, control laser parameters as well as other devices such as power meters, motorized objective lens turrets, I/Os, serial port devices, etc.

Everything can be done quickly and visually. You are welcome to unleash your creativity with Polaris CAD/CAM, because adapting, fixing, changing and creating things is easier than ever.

Main features of Polaris CAD/CAM:

  • Direct hardware control
  • WYSIWYG (What You See Is What You Get) window for machining preview
  • Support for both positioning stages and Galvoscanners
  • Support for stitching and infinite field of view with galvo scanners and stages
  • Import of CAD files (DXF, DWG, STL, Gerber)
  • Special GUI for a specific task-optimized machines
  • Ability to write plug-ins to support your hardware

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Import 2D and 3D CAD Files

DXF, DWG, STL, Gerber and NC Drill files can be imported to Polaris CAD/CAM and used for laser machining. STL files can be sliced and hatched and used for 3D laser printing and 3D laser engraving. DXF, DWG and Gerber files can be hatched and offsets added for beam spot compensation. Use imported CAD files to prepare complex laser machining recipes.


Draw Objects in Polaris CAD/CAM

Lines, circles, arcs and rectangles are easy to draw in Polaris CAD/CAM. You can draw them by hand and/or add precise parameters for size and position. You can draw polylines and polygon shapes with a special easy to use tool. All closed shapes can be hatched with one of the hatching types (lines, cross-hatching, dots, contours). Select motion speed and laser parameters for each shape, groups of shapes or the whole recipe.


Create Complex Recipes with Recipe Flow Tools

All the parameters in the recipe such as size, position, motion and laser parameters can be entered as variables. It is an easy way to change and control parameters for the entire recipe. In addition, logical commands including “cycle” and “if” could be used to create complex yet flexible and easy to control laser machining recipes. Use mathematical expressions, constants and formulas to create the complex geometries.


Control Positioning Stages and Galvoscanners

Polaris CAD/CAM may employ Infinite Field of View (IFOV) to combine motion of Galvoscanners and linear stages. Polaris CAD/CAM may control all of the hardware directly.


Control Devices Via I/Os and Serial Port

Hardware in the laser machine can be controlled via digital and analog I/O and Serial port commands. Commands can be included to the recipes or added as special buttons in the user interface. Custom support for specific devices, such as laser sources, power meters may be requested.

 

Control Positioning Stages with Virtual Joystick

Polaris CAD/CAM has a Virtual Joystick tool, that allows manual control of the positioning stage on your laser machine. There are preset positions e.g. load-unload automatic motion between camera and laser positions, and laser firing control.

 

Polaris CNC Oi

As an alternative to Polaris CAD/CAM, we offer Polaris CNC Oi which is a standard experience for operating a CNC machine running industry standard G-Code. Support is offered for mills, lathes, grinders, flat bed cutting machines, and laser CNC machines with and without Galvoscanners. 

 CNC HMI

 

Some of the standard features of Polaris CNC Oi included

  • XYZABCUVW 9 Axes G-Code
  • File Management
  • Cutting and Simulation Modes
  • Configurable Block Look Ahead
  • Manual Data Input (MDI)
  • Cycle Start, Stop, Feedhold and Feedrate Override
  • Spindle Speed Override
  • Handwheel Interface
  • Multi-Axis Jogging Interface
  • Infinite Field of View (IFOV) Mode
  • Multi Axis Position Readout
  • Axes Velocity Readout
  • Spindle Velocity Readout
  • Current Line Number Display
  • Modal Status Display
  • Homing and Overtravel Limits
  • Automatic Tool Changing
  • Automatic Tool Length Calibration
  • Analog and Laser Probes
  • Material Height Sensing 
  • Interface Designed for Touch Centric Operation
  • Interface to Hardware or Touch Screen Buttons
  • Interface Easily Modified, Customized and Extended
  • Wide Variety of Graphical Widgets Available  
© 2009-17 Precision Micro Dynamics Inc. Provider of Polaris Motion Control Systems.   Tel.250-382-7249     Fax.250-382-1830   Email: sales@pmdi.com

Advanced performance for the toughest problems in motion control and data acquisition.