Machsupport Forum

MachPro => MachPro General Discussion => Topic started by: Sunkistist on July 10, 2026, 01:17:37 PM

Title: BUG? Axis A not homed... but I have no A axis
Post by: Sunkistist on July 10, 2026, 01:17:37 PM

Hi, first time post long time lurker. Looking forward to learning where I’ve gone wrong.

I recently purchased and installed Machpro and I am looking forward to using it with my CNC knee mill. However, I have yet to get it fully functioning. The profile I’m running was imported from Mach4, where it was working fine. After running the homing sequence the first thing I tried was fire off a simple XY move (G01 X1 Y1 F10) via the MDI button. But nothing moves and I get an error in the status box stating “Axis A must be homed before running G-code”. I thought I could get by without the MDI but the error pops up while running a g-code file and when I was setting up my auto tool setter.
 
Nowhere in my settings is Axis A, or Motor 3, enabled. And in settings under Safety Check - Ignore Axes Homing Safety Check I have tried both “3” and “3-5”.
I went so far as to make an entirely new profile from scratch. That profile is throwing errors for a door interlock safety and a low coolant switch, neither of which I have. And for the record they are disabled in the settings section and no inputs were ever set for them. Also for the record, the motors are working as I can home and jog to my hearts content.

It won't let me attach files but below is the diagnostics log.

2026-07-06 12:57:49.419

• [I    ] - Logging Enabled.

2026-07-06 12:57:51.134

• [I    ] - Cycle Start Button Pressed  Line

2026-07-06 12:57:51.135

• [I    ] - Function: SetStopStatus():  completed successfully, called by: SetStopStatusAll(), (inst = 0) ?

2026-07-06 12:57:51.135

• [I    ] - Function: SetStopStatusAll():  completed successfully (inst = 0) ?

2026-07-06 12:57:51.135

• [I    ] - Function: ResetAllOverrideAxes():  completed successfully (inst = 0) ?

2026-07-06 12:57:51.135

• [I    ] - Function: ResetEndOfProgramOutput():  completed successfully (inst = 0) ?

2026-07-06 12:57:51.135

• [I    ] - Function: LaserPointerCycleStartCheck():  completed successfully (inst = 0) ?

2026-07-06 12:57:51.135

• [I    ] - Function: GetSoftLimits():  completed successfully, called by: CycleStartSoftLimitRecovery(), (inst = 0) ?

2026-07-06 12:57:51.135

• [I    ] - Function: CycleStartSoftLimitRecovery():  completed successfully (inst = 0) ?

2026-07-06 12:57:51.136

• [I    ] - API: mcCntlMdiExecute(inst = 0, commands = 'G01 X1 Y1 F10') (unknown caller)

2026-07-06 12:57:51.136

• [I    ] - Force home check failed: axis A is not homed.

2026-07-06 12:57:51.136

• [I    ] - API: mcCntlMdiExecute() Force home check failed! Returned MERROR_NOT_NOW.

2026-07-06 12:57:51.136

• [I    ] - Error: The operation could not be completed at this time. Return Code: MERROR_NOT_NOW (-18), Function: ExecuteMDI(), Called by: xpcall(), File: [C], Line: -1  Line

2026-07-06 12:57:51.136

• [I    ] - Error: The operation could not be completed at this time. Return Code: MERROR_NOT_NOW (-18), Function: _CycleStart(), Called by: pcall(), Line: -1  Line

2026-07-06 12:57:57.682

• [I    ] - Logging Enabled.

Any help is appreciated! Thank you!