Need Help with Setup

For what it is worth I have the computer set up as dual boot. XP running mach3 using these same pins and port 0xa400, and testing the alternative boot with Linuxcnc. It is confusing as to why it works with mach3 but not linuxcnc.

From a command prompt try this command, to double check your parallel port address.
cat /proc/ioports | grep parport
Then show us the results and a copy of your hal file.

Still no luck. I may just have to get a different bob.

Hi All,
I am new here and I have a question.
Can LinuxCNC do threading on a Harbor Freight 7x12 mini lathe?
I have the lathe setup and LinuxCnc runs fine and wanted to do threading using the cnc. I have a hall effect sensor attached to the lathe with one impulse per revolution with signal going to pin 10. I manually turn the lathe on and I don't have anything else added to the lathe regarding the spindle. I can see the RPM's when I run Mach3 but I only have the trial Mach3 program. Now, the problem is that Mach3 requires the full version to pick up the synchronization of the spindle and do threading and that costs $175.00. I am just a retired hobbyist with limited fixed income and like a lot of us just don't have $175.00 that would buy very limited additional function over LinuxCnc.
So, here is my question: Will someone help me program the Hal configuration to be able to thread? Will the setup I have with only the Hall effect sensor to detect spindle rotation work in LinuxCnc to do this?
I am a novice when it comes to programming and need help I mean a lot of help to try to accomplish this.

Thanks in advance for any help and advice,
Brojt

It isn't an ideal setup, but it will work. (an encoder and index is better)
You have to set up a hal encoder component in counter mode and connect both phase-A and phase-Z of the encoder component to your input from the parallel port.
linuxcnc.org/docs/2.7/html/examples/spin...ml#_spindle_feedback

Thanks so much for your response,
In the example you directed me to there are at least 2 things I need to know.
1. the encoder will be my hall effect currently active low. That signal would go to pin 11, ( I am thinking out loud here).
2. The "A" phase I don't know where to get that input. If I had it looks like it connects to pin 10 (again just me guessing).
3 Where the sample says the encoder is to have 100 pulses per revolution I should change that to 1 as that is how the hall effect is currently set.

It looks like if I had the above info I could just make a few changes to the sample configuration and at least be in the debug stage.
Please let me know if this is correct and how to determine the A phase input signal.

Thanks
Brojt

The example in the documentation is using 2 separate inputs one from a single phase encoder (phase-A) that could be multiple counts/revolution, and an index pulse (phase-Z).
You don't have two separate inputs, so you will need to connect both phase-A and phase-Z to the same parallel port pin.
To do it the line you would put in your hal file could look something like this: