Manual

Introduction 1-5
“Height Sense Always” Mode
When the “Height Sense Always” mode is selected, the dispense height is set as the distance between the
needle and the board at the moment the height sense probe detects the board. The board height is sensed
on each dispense instruction. This mode is useful on large boards where the dispense height may vary
across the board or when the dispense gap is critical, such as when dispensing very small dots.
Selective Height Sense
Selective Height Sense allows the user to define a rectangular region of the board where only a single
height sense is required.
Advanced Programming Menus
The Programming Window is specifically designed to make programming intuitive and easy. The
programmer is prompted through workpiece and fiducial setup. Logical tool bars and menu icons for
common commands simplify keystrokes. The programmer has access to all machine controls, fluid
control parameters, and timing parameters in the Programming Window and can use them in the
programming process. In addition, both wet and dry dispensing runs can be performed from the
Programming Window for testing and fine-tuning a dispensing program.
Advanced Vision System Support
Dispensing systems using FmNT are equipped with an advanced camera/light vision system called
Asymtek Vision for Windows (AVW), which is an integrated application within FmNT. It allows you to
see the board onto which you are dispensing by providing a video overlay of the board in a fully
integrated
FmNT window. You can control light levels, camera-offset, corner finding algorithms, fiducial
recognition, skew correction, chip tolerance, and part skipping as necessary to optimize your program.
See “Vision System Setup” in the System Configuration and Setup section.
Camera Calibration
The camera calibration procedure includes rotation compensation. When a factory uses multiple Asymtek
machines, camera rotation can affect dispensing accuracy. Determining the camera rotation during
calibration and using this information during a production run removes the machine-to-machine variation.
Lighting Calibration
When a factory utilizes multiple Asymtek machines running the same dispensing program, it may be
useful to normalize the light output between the machines so that the programmed light level of a given
dispense program will generate roughly the same light output on each machine. This feature is only
available on lighting systems with more than 16 levels.
Barcode Support
FmNT supports the use of a barcode reader to select a dispensing program. Prior to running production,
barcode values are associated with FmNT dispensing programs. During a production run, the barcode
label is read at the Conveyor entry station. If the associated dispensing program is different than the
current program, the new program will be loaded when the board enters the Dispense Station. See
“Scanner Setup” in the System Configuration and Setup section.