Cavity Mill _ corner control slowdown help!!
Cavity Mill _ corner control slowdown help!!
(OP)
I wanted to know if anyone has had success with the corner control slowdown on a cavity mill operation. Is there a way to make every pass on walls to slowdown in the corners? So far I have noticed that slowdowns will work randomly in corners. We have a older cnc machine that cannot make 90 degree turns over 40 ipm without keeping material on part. So basically if i want to rough out a square pocket at 200 ipm but want the passes on the wall to slow down to 40 ipm in the corners, I keep seeing a inconsistent feedrate. Any comments would be appreciated. Hopefully I gave enough information.





RE: Cavity Mill _ corner control slowdown help!!
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RE: Cavity Mill _ corner control slowdown help!!
Software For Metalworking
http://mrainey.freeservers.com
RE: Cavity Mill _ corner control slowdown help!!
If you are writing your own code by hand you could do something like this:
G1X8.F200.
G1X8.5F40.
G3X9.0Y0.5I8.5Y0.5F40.
G1Y1.0F40.
G1Y8.0F200.
G1Y8.5F40.
G2X8.5Y9.0I8.5J8.5F40.
G1X8.0F40.
G1X0.5F200.
ETC...
ETC...
ETC...
Effectively what you are doing is slowing it down in the corners yourself. Notice that there is a short linear move at the 40 IPM feedrate. This will allow for deceleration of your table and a true 40 IPM feedrate through the corners.
With a G91 incremental Z move and a looping command you could write the entire code to any depth in about a dozen lines.
RE: Cavity Mill _ corner control slowdown help!!
RE: Cavity Mill _ corner control slowdown help!!
What is Cavity Mill? Is it a feature in a CAM software package?? If so, which program.
RE: Cavity Mill _ corner control slowdown help!!
RE: Cavity Mill _ corner control slowdown help!!
Well, in that case I can't help you a bit....
But, here's something to think about. Is UG primarily a CAD package or a CAM package???
Me thinks its a CAD package. That being said, the functionality of any CAM add on should be an interesting proposition indeed.
Good Luck!!!
RE: Cavity Mill _ corner control slowdown help!!
-Derek
RE: Cavity Mill _ corner control slowdown help!!
RE: Cavity Mill _ corner control slowdown help!!
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RE: Cavity Mill _ corner control slowdown help!!
RE: Cavity Mill _ corner control slowdown help!!