G12 and G13 Circular Pocket Milling on Haas: How to Read Them
G12 and G13 are Haas-specific circular pocket cycles: one block mills a round pocket CW or CCW. What the words mean, and the portable helical way underneath.
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G12 and G13 are Haas-specific circular pocket cycles: one block mills a round pocket CW or CCW. What the words mean, and the portable helical way underneath.
G68.2 declares a tilted coordinate frame so 3+2 work programs like flat 3-axis milling on an angled face: the frame logic, the bracket discipline, and the hedges.
GRBL implements a documented subset of standard G-code: full motion and offsets, no canned cycles or macros. The list, the omissions, and what they mean.
The GSK 980TDb speaks a largely Fanuc-compatible lathe dialect: standard motion, G96/G50, G71-class cycles. The list framework, plus where the manual rules.
Setting up a Haas VF-2 runs on the standard vocabulary: offsets, tool lengths, MDI checks, with Haas dialect at the edges. The setup sequence, code by code.
Heidenhain's own programming-station software is the real TNC simulator, licensed and PC-based. For the ISO layer itself, free tools cover most of the practice.
Heidenhain programmeert in dialoogvorm (Klartext), Fanuc in klassieke ISO-g-code. Wat dat betekent voor leren, mbo en je eerste baan, met een duidelijk advies.
Generating G-code with Python is f-strings plus discipline: a formatter that never emits garbage, header and footer templates, and a feature loop. Full example inside.
M99 loops programs three ways: at a main program's end for continuous runs, with M98 L-counts for repeats, and with macro counters for controlled cycles.
Mach3's MDI line runs typed blocks immediately: the workflow, the starter commands worth typing, and the safety habits that keep manual entry boring.
WorldSkills CNC milling prep is a long campaign: a reflex-level code core, CAM mastery, machine hours under a coach, and the official test projects as the map.
A G-code part counter is a persistent variable incremented per cycle, plus a decision at a target: stop, message, or pause. Three builds from simple to smart.