Code reference
G73 vs G83: Chip Break vs Full Retract Peck Drilling
G73 snaps the chip with a tiny back-off and stays in the hole; G83 pulls out to the R plane every peck. Depth, chip type and coolant decide which to run.
Lawrence Arya··10 min
Code reference
G98 vs G99: Canned Cycle Return Planes Explained
G98 retracts to the initial level, G99 only to the R plane. How to mix them around clamps, the lathe feed-mode trap, and the cycle time G99 really saves.
Lawrence Arya··10 min
Guides
How to Find X and Y Coordinates for a Bolt Hole Circle in G-Code
A bolt hole circle is sine and cosine around a center: X = center + radius times cosine of the angle, Y = center + radius times sine. The formula and a worked set.
Lawrence Arya··4 min
Guides
What Is a Canned Cycle in CNC? One Line Does Many Moves
A canned cycle is a built-in routine the control expands into many moves from one block: a drilling, boring, or tapping operation packed into a single line.
Lawrence Arya··4 min
Code reference
G81 vs G83: Drilling Canned Cycles Explained
G81 is a simple drill cycle and G83 is a peck drill cycle for deep holes. Here is how canned cycles work, their R, Z, and Q words, and when to use each.
Lawrence Arya··5 min