34
96-5047 rev L June 2005
4.18 O
PERATING
H
INTS
1.
You can select another display while in the RUN mode by pushing the DISPLAY SCAN button.
This way you could view the particular feed rate for a step or view the remaining loop counts left.
2.
You can start your program on any step by using the UP/DOWN scan keys.
3.
Make sure your CNC has the same number of M functions programmed as you have steps in the
HAAS control.
4.
DO NOT program two M functions one directly after another in your CNC control to index the
HAAS control, as this may cause a timing hang-up in your CNC. Use a dwell of 1/4 second
between them.
5.
If all else fails, read the manual again.
4.19 S
IMULTANEOUS
R
OTATION
AND
M
ILLING
G94 can be used to perform simultaneous milling. The CNC relay is pulsed at the beginning of the step so that
your NC machine will proceed to the next block. The controller then executes the following L steps automati-
cally without waiting for start commands. Normally the L count on the G94 is set to 1 and that step is followed
by a step that is to be run simultaneously with an NC mill.
4.20 S
PIRAL
M
ILLING
The simultaneous rotation and milling feature of the controller will permit machining of certain cam forms, spiral,
and angular cuts. Spiral milling is when the spindle rotates and an axis on your mill moves at the same time.
Insert a G94 into the control and the desired rotation and feed rate on the next step. The control will execute
G94 (this pulses the MFIN relay and allows your CNC to proceed) and the following step or steps as one step.
If you wish to do more than one step, then insert the number into the L register. By selecting a rotation feed
rate and varying the mill feed rate, any spiral is possible. In order to spiral mill, you will have to calculate the
feed rate for your mill so that the HAAS spindle and your axis will stop at the same instant.
In order to calculate the feed rate for your mill you need to know:
1.
The angular rotation of the spindle (this should come from the print)
2.
A feed rate for the spindle (arbitrarily select a reasonable one, five degrees (5
o
) per second is a
good starting point)
3.
The distance you wish to travel on X-axis (this should come from the print)
For example, we wish to mill a spiral that is 72 degrees (72
o
) of rotation and moves 1.500 inches on the X-axis
at the same time.
1.
Compute the amount of time it will take the HAAS index head to rotate through the angle
# of degrees /(divided by) feed rate of spindle = time to index
72 degrees/ five degrees per sec = 14.40 seconds for indexing head to rotate.
2.
Now we need to compute the feed rate for the mill that will travel the X distance in 14.40 seconds.
(length to travel in inches/(divided by) # of seconds of rotation) x 60 seconds = feed rate for mill in
inches per minute.
1.500 inches/14.4 seconds = 0.1042 inches per second x 60 = 6.25 inches per minute.
Summary of Contents for HRT 160
Page 9: ...8 96 5047 rev L June 2005 HRT210SHS MACHINE DIMENSIONS ...
Page 55: ...54 96 5047 rev L June 2005 9 HRT ASSEMBLY DRAWINGS ...
Page 58: ...57 96 5047 rev L June 2005 ...
Page 59: ...58 96 5047 rev L June 2005 ...
Page 61: ...60 96 5047 rev L June 2005 ...
Page 62: ...61 96 5047 rev L June 2005 ...
Page 63: ...62 96 5047 rev L June 2005 ...
Page 64: ...63 96 5047 rev L June 2005 ...
