A-axis is reversed, need to fix...

Greetings,

My Rotary table is moving in the wrong direction during JOG, MDI, and via program.

I suspect it is something I can fix via software? i.e. my HAL file?

I am using LinuxCNC 2.5.4, the machine is a vertical spindle mill, and the rotary axis revolves about X-axis (rotary = A-axis)

Line 45 of my HAL file says this....

net adir parport.0.pin-08-out stepgen.3.dir

Am I getting warm???

Attached is my HAL file

As always, many thanks in advance.

Cheers,

Dave

In your ini file under [AXIS_3] have you tried changing...
SCALE = -500
to
SCALE = 500

or in your hal file invert the direction output pin

linuxcnc.org/docs/2.4/html/hal_parallel_port.html

1.1.3 Parameters

(bit) parport.<portnum>.pin-<pinnum>-out-invert -- Inverts an output pin.
(bit) parport.<portnum>.pin-<pinnum>-out-reset (only for "out" pins) -- TRUE if this pin should be reset when the -reset function is executed.
(U32) parport.<portnum>.reset-time -- The time (in nanoseconds) between a pin is set by write and reset by the reset function if it is enabled.

The -invert parameter determines whether an output pin is active high or active low. If -invert is FALSE, setting the HAL -out pin TRUE drives the physical pin high, and FALSE drives it low. If -invert is TRUE, then setting the HAL -out pin TRUE will drive the physical pin low.

Rick G

Greetings,

I went with the Andy Pugh approach modifying my HAL file.

Many thanks, the A-axis is now correct.

With kind regards,

David