Hoppy
Cast Iron
- Joined
- Feb 21, 2005
- Location
- Millington, NJ
I'm turning a part that has a spherical surface between two grooves. The grooves are 0.050" wide and I'm using a 0.043" wide round-nosed tool to cut the spherical surface. I set the tool length by toughing off and dialing in 0.0215" (its nose radius). Here's my code:
G01 G42 X2.1 Z-0.139 F0.1 (Invokes TNR comp; brings tool to center of starting groove)
X2. F0.005 (Moves tool to starting diameter)
G03 X2.012 Z-0.444 R1. F0.0015 (Cuts spherical surface; ends in center of ending groove)
G01 X2.1 F0.01 (Withdraws tool in X)
G40 Z0.1 (Cancels TNR comp)
The first line of code executes as I expected and the tool is centered in the starting groove. When the second line of code executes, however, the tool moves in both X and Z. Why? What am I doing wrong?
G01 G42 X2.1 Z-0.139 F0.1 (Invokes TNR comp; brings tool to center of starting groove)
X2. F0.005 (Moves tool to starting diameter)
G03 X2.012 Z-0.444 R1. F0.0015 (Cuts spherical surface; ends in center of ending groove)
G01 X2.1 F0.01 (Withdraws tool in X)
G40 Z0.1 (Cancels TNR comp)
The first line of code executes as I expected and the tool is centered in the starting groove. When the second line of code executes, however, the tool moves in both X and Z. Why? What am I doing wrong?