Additional G M codes

Additional G- and M-codes are usually implemented according to the LinuxCNC specification.

G-Codes

G7  - Lathe diameter mode
G8  - Lathe radius mode
G33 - Spindle synchronized motion
G76 - Threading cycle
G96 - Constant Surface Speed mode
G97 - RPM mode

G73 - Drilling cycle, chip breaking
G81 - Drilling cycle
G82 - Drilling cycle with dwell
G83 - Drilling cycle with peck
G98,G99 - Canned cycle return level

M-Codes

M6 - Tool change
M61 - Set current tool
M62-M65 - Digital Output Control

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NOTE: use the new codes with caution, they have not undergone extensive testing!