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G07.1 Cylindrical interpolation

Fanuc G-code · Mill, Lathe

On mills: Cylindrical interpolation

Lets you program a rotary axis as if the surface of a cylinder were rolled flat. You give the rotary axis as a distance along the surface. Used for slots and cams cut around a part on a 4th axis.

Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.

Format

Addresses

How it works

Modal, group 16, until G07.1 with radius 0.

Example program

The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.

Watch out for

• This is an option. The rotary axis letter is set by the builder, often A or C on a mill.
• Give the mode in its own block, and select the plane that pairs the rotary axis with a linear axis as the manual shows.
• Cutter compensation can be used inside the mode but must be started and cancelled inside it.

On lathes: Cylindrical interpolation

Lets a live tool cut slots and grooves on the outside of a cylinder. The C rotary axis is programmed as a distance around the surface, using the cylinder radius you give.

Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.

Format

Addresses

How it works

Modal until G07.1 C0. Cancel before any other cycle or reference return.

Example program

The full 9-line example is in the app. Example is in inch. Check offsets and clearances first.

Watch out for

• The C value on the G07.1 line is the cylinder radius, not a diameter.
• Plane selection with the C axis as a parallel axis is set up by the machine builder. Check the builder example before first use.
• Tool nose radius compensation is allowed inside the mode, but turn it on and off inside the mode.

Related codes

G19 · G41 · G40 · G12.1 · G18

G07.1 on other controls

The same number can mean something different on another control.