The tool radius implementation process of compensation
The execution of tool radius compensation can generally be divided into three steps.

1 knife repairing

Numerical control system with G41 / G42 instruction set up in the knife repairing, sword, establish procedures G00 only with the motion commands or G01, cannot use G02 or G03. In the process of establishment of knife repairing cannot carry out parts processing.

2 knife repairing

In the knife repairing situation, G00 G01 G02, G03, can use. It is adjacent Log saw blades to the input into two sections, automatic calculation of cutter center. In the knife repairing on condition of cutter center, track and programming tool radius from a track always.

3 knife repairing revoked

Also can use knife repairing revoked or G00 G01, and cannot use G02G03.

Knife knife repairing is established for cancellation of inverse process, also, in this process cannot parts processing.

In programming, G17 instruction format: effective G41 (G42) G00 G01 (X) - - Y D - (F) -
G40 G00 G01 (X) - Y - (F) -

Its trajectory figure.

G41 instruction says tool radius left compensation. To look into the tools in the direction of cutter center, the contour of the left (see figure, usually used when the milling left compensation).

G42 instruction says tool radius compensation. To look into the tools in the direction of cutter center, the contour of the right (see figure, usually used when the counter mill compensation).

G40 instruction says tool radius compensation. When G41 or G42 after use G40 program, thereby eliminating offset with programming tool path.