®
A NORDSON COMPANY
Ultra TT User's Guide
Version 1.2
42
5.4.4
IRREGULAR CONTINUOUS PATH
Teaching irregular shapes requires the software to tie different elements together in a way that the
taught path can be maneuvered in a smooth manner at a constant velocity. Short moves at sharp
angles will limit the speed paths that can be run and should be avoided.
Note:
You can only incorporate lines and arcs elements in an irregular continuous path if it is
strictly 2-dimensional. Otherwise, you will need to simulate the arc as a best-fit spline using
several Mid-point commands.
Next, program Figure E on the template.
The key at each point on Figure E indicates the
Point Type required to achieve the desired path.
Note:
“1”= CP Start; “2” = CP Arc; “3” = CP Mid;
“5” = CP End
1. From the Select Instruction window, select CP and tap “OK”.
2. Select Point Type: Start, and tap “Jog”. Move the dispense tip to the mark indicated with “1”,
then tap OK.
3. Select the Line Type and tap the “Teach CP” button.
4. Tap “Jog” to move the dispense tip to the next point in the path selecting the indicated
Point Type.
5. Be sure to teach the path in the same direction until you are back at the starting point. Note
that the CP instruction must end with a CP End command.
5.5 HEIGHT SENSE
Height sense provides the Ultra TT with the work-piece surface datum. This allows the dispense tip
to accurately move to the specified dispense gap in either the dot or line parameters.
Before inserting a height sense, it is important that the height sense probe to dispense tip offset
has already been taught during Setup (Refer to Section 4.1.1.1) or the Z-offset macro from the
front panel be run. The Z-offset macro is located in program 97 for valve #1 and program 96 for
the toggle valve.
If a height sense instruction is not inserted within a program, the dispense tip will position itself at
the taught Z-height.