Tips on using a Fadal, IMO:
Don't use format 1 (Fadal format)
Use format 2 (Fanuc format)
Reason:
Better behavior. For instance, in format 1 the machine will always want to start from it's home position, no matter what... Not in format 2...
If you have other CNC's, chances are they'll want to see Fanuc formating.
Don't even get used to using G92 X0 Y0
Just start right off using G54 or E1 thru G59 or E6.
Rarely do people need more than 6 coordinate systems...
I assume you have a CAM system, if you don't, get one. You'll be much better off doing this rather than trying to make usefull use of the shop floor programming stuff on a Fadal control...
Besides, when the CNC is running is when you can be programming offline...
Also, learn the difference between G8 (no feed ramps) and
G9 (feed ramps on). Use G8 for point to point and 3D contouring programs where you don't want the control to slow down after every block of code like G9 will give you.
But G9 is much more accurate than G8 (on a Fadal).
Note: It should not be but it is...
Modify the behavior of your Fadals feed ramping time by:
G51 R0+0.5
G51 R0-0.5
Use both of these for X, Y and Z axis. The machine will be quicker...
This is the key to higher feed motion on a Fadal.
With G9 and the modified G51 you get automatic feed reduction on inside corners, a good control slows when it needs to, a Fadal slows after every block, but it needs to...
It may sound and look stupid, and it is but on a Fadal this is the only way to get more accurate results at higher feeds...
Let me know how things are going for you,
Scott_bob
__________________ Scott_bob
Last edited by Scott_bob; 12-24-2003 at 06:58 PM.
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