Specifications
61 
Southwestern Industries, Inc. 
TRAK LPM Programming, Safety, & Operating Manual 
In order to use a zigzag ramp, the X or Y move must be larger than the diameter of the 
tool plus the radius of the tool, minus the finish cut of the pocket. The formula is: 
the pocket x or y move > tool diameter + tool radius - fin cut 
If the tool is too large for the zigzag ramp, the ProtoTRAK PMX CNC will give an error 
message during program run and will then default to plunge. This will occur for each 
pass of the pocket depth. 
8.6.6 Conrad in Pocket Events 
A Conrad may be added to the last event of an Irregular Pocket. The Conrad will be 
inserted between the end of the last event and the beginning of the next event. 
8.6.7 Bottom Finish Cut 
The standard finish cut is along the walls of the part, but you may have the ProtoTRAK 
machine a finish cut along the bottom as well. When the highlight is on the Fin Cut 
prompt, the blue ? appears next to the Help key. Pressing help gives you the ability to 
choose a Finish cut in Z. You can remove the bottom finish cut by placing the highlight 
on the Fin Cut prompt and pressing Help again. When you select Yes to the bottom 
finish cut, the following prompt will appear: 
Z FIN CUT: the finish cut at the bottom. 
8.6.8 Face Mill Event 
Press Face Mill soft key if you wish to face or clean up the top of a workpiece. 
The cutter will automatically start off of the part that you define. The cutter will move 
along the X axis to remove the material starting from where you defined X1, Y1 and 
finishing at the corner programmed as X3, Y3. 
The prompts for the face mill: 
X1: is the X dimension to any corner 
Y1: is the Y dimension to the same corner as X1 
X3: is the X dimension to the corner opposite X1; incremental is from X1 
Y3: is the Y dimension to the same corner as X3; incremental is from Y1 
Z Rapid: is the Z dimension to transition from rapid to feed 
Z End: is the Z dimension at the bottom of the pocket; incremental is from the previous 
event 
# Passes: is the number of cycles to machine to the final depth spaced equally from Z 
Rapid to Z End. 
Z Fin Cut: is the depth of the finish cut. If 0 is input there will be no finish cut. 
RPM: is the spindle RPM for the event. INC SET will use the RPM of the previous 
event. 
FIN RPM: is the spindle RPM for the finish cut. 
Z Feedrate: is the Z feedrate from Z rapid to Z end in in/min from .1 to 700, or mm/min 
from 5 to 17780 










