BUG-O Systems MM-1 - Manual (Page 18)

18
PROGRAMMING SHAPES
The following pages describe the shape programming capabilities of the machine. Cuts of any arbitrary
shape can be programmed, by building up the shape from a sequence of straight lines and circular arcs.
For every change of pipe diameter in the machine, the new diameter has to be entered into the machine.
If the machine is set to cut a square hole on a 4" (102 mm) pipe, and an 8" (203 mm) diameter pipe is
put into the chuck, the hole will be rectangular, stretched out to twice the dimension in the circumferential
direction.
NOTE: The pipe diameter is a background setting and affects all programs.
Press “E” on the pendant keypad to enter the diameter; the display will prompt you for the pipe diameter
first, and then the segment end slowdown. The shapes are laid out on a flat surface as if the pipe had
been slit and opened up flat, and the cut line developed on it.
NOTE: If the “SHAPE MACHINE PC” program is used to download shapes, the pipe diameter
can be entered by clicking “PIPE FUNCTIONS” and then set pipe diameter before downloading
the program to the machine. This can be done directly from the computer if desired, by clicking
the “BUG-O STUFF” menu and then clicking “COMM TERMINAL”. From there, press E (upper
case) and follow the prompts. The machine must be connected to the PC for “COMM TERMINAL”
function; turn power “ON” and press the RESET button on the machine control panel.
When using the hand held pendant, shapes are built up only from the segments provided (see Shape
Programming Chart): circular arcs and straight lines, square or inclined, by selecting type and quadrant
for each segment. A shape can have up to 50 segments. Some other operations, like solenoid “ON /
OFF”, TIME DELAY, or REPEAT another shape, also count as one segment each, if used.
In normal operation, first position the torch at the starting point. Next turn on the preheat gases, and wait
until the required preheat is reached. Press the START / RESUME button, the machine will turn on the
cutting oxygen and start cutting the current shape. At the end of the shape the machine will turn off the
cutting oxygen and stop. Manually turn off the preheat gases.
When plasma cutting, and external contact relay is used instead of the cutting oxygen solenoid. A delay
to allow for striking the arc should be the first segment programmed.