Posts tagged Hobby Cnc from the G-Code Sprint team.
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.
Mach3's MDI line runs typed blocks immediately: the workflow, the starter commands worth typing, and the safety habits that keep manual entry boring.
GRBL files are the standard core with hobby fingerprints: dense explicit moves, laser S-words, no cycles. The five-pass reading method that makes them transparent.
Onefinity machines ship with different controller generations, so the honest G-code list is the standard hobby core plus your specific controller's documentation.
Mach3 speaks a near-complete standard dialect, so the codes to know are the universal core plus Mach3's extras worth understanding: cycles, comp, and MDI habits.
Your printing skills transfer further than you think: G-code, motion, firmware. The new part is force: workholding, feeds, and dust. Here is the honest map.
GRBL has two different number-1 messages: error:1 is a malformed G-code word, ALARM:1 is a tripped hard limit with position lost. Here is how to fix each.