Owner's manual

Beginning Programming 6-31
Figure 6-20 Relationship Between the Retract Distance, Backtrack Length and Backtrack Gap
6.6.4 Jetted Line Parameters
Jetted lines are those dispensed with a DispenseJet valve. Each line is made up of a series of dots. “Jet on
the Fly” is a process of dispensing a line of dots without stopping at each dot position. This feature can be
activated by adding standard line commands to the program. The settings for the specific lines can then be
modified or adjusted by editing the line parameters. For more information, see 7.10 Jet on the Fly.
Item Description
Down Speed
The Down Speed is how fast the dispensing head lowers to dispense. Low
viscosity fluids tend to drip and you may want to set this parameter higher.
The units are inches/second. Typically, 2 in/sec is sufficient.
Down
Acceleration
This is the parameter that controls how fast the dispensing head
accelerates to the Down Speed. The units are inches/second
2
. Typically,
300 in/sec
2
is sufficient.
Figure 6-21 Jetted Line Parameters – Pre Dispense
Retract Distance
Backtrack Length
Backtrack Gap