> Gesendet: Mittwoch, 07. Februar 2024 um 10:50 Uhr
> Von: "Rod Webster" <r...@vehiclemods.net.au>
> An: "EMC developers" <emc-developers@lists.sourceforge.net>
> Betreff: Re: [Emc-developers] Also prepared a Hugging Face LinuxCNC 
> assistant. Aw: Re: LinuxCNC-aware chat bot
>
> It lied a lot when I asked
> 
> build me a hal file for a 3 axis milling machine that uses a mesa card
> 😄

Below I put what chatGPT came up with - if not good enough then maybe we should 
help the documentation a bit more? Hugging Face was not explicitly pointed to 
our documentation (did not know how to do that).
Best,
Steffen

ChatGPT 4 (LinuxCNC Assistant):
Creating a HAL (Hardware Abstraction Layer) file for a 3-axis milling machine 
that uses a Mesa card involves defining how LinuxCNC communicates with your 
hardware components, such as motors, encoders, and the Mesa card itself. The 
specific Mesa card model (e.g., 7i76e, 5i25, etc.) significantly influences the 
HAL file configuration due to differing capabilities and connection methods. 
Below, I'll provide a basic template for a 3-axis milling machine using a 
generic Mesa Ethernet card (e.g., 7i76e) as an example. This should serve as a 
starting point, which you can then customize based on your specific hardware 
setup and requirements.

Before proceeding, ensure you've installed and configured LinuxCNC and have the 
necessary information about your Mesa card, including its model and IP address 
(if using an Ethernet card). The Mesa card should also be configured correctly, 
following the Mesa documentation.

### Basic HAL File Template for a 3-Axis Mill with a Mesa Card

```hal
# Load the required modules for a Mesa card
loadrt hm2_eth board_ip="192.168.1.121" # Replace with your Mesa card IP address
loadrt [KINS]KINEMATICS
loadrt stepgen step_type=0,0,0

# Load the hardware driver for the Mesa card
loadrt hostmot2

# Associate the Mesa card configuration
loadrt hm2_eth config="num_stepgens=3 num_encoders=3 sserial_port_0=000xxx"

# Define step generator for each axis
net x-step <= hm2_7i76e.0.stepgen.00.step
net x-dir <= hm2_7i76e.0.stepgen.00.dir
net y-step <= hm2_7i76e.0.stepgen.01.step
net y-dir <= hm2_7i76e.0.stepgen.01.dir
net z-step <= hm2_7i76e.0.stepgen.02.step
net z-dir <= hm2_7i76e.0.stepgen.02.dir

# Connect the step generator to the LinuxCNC motion component
net x-pos-cmd joint.0.motor-pos-cmd => hm2_7i76e.0.stepgen.00.position-cmd
net y-pos-cmd joint.1.motor-pos-cmd => hm2_7i76e.0.stepgen.01.position-cmd
net z-pos-cmd joint.2.motor-pos-cmd => hm2_7i76e.0.stepgen.02.position-cmd

net x-vel-cmd joint.0.vel-cmd => hm2_7i76e.0.stepgen.00.velocity-cmd
net y-vel-cmd joint.1.vel-cmd => hm2_7i76e.0.stepgen.01.velocity-cmd
net z-vel-cmd joint.2.vel-cmd => hm2_7i76e.0.stepgen.02.velocity-cmd

net x-enable joint.0.amp-enable-out => hm2_7i76e.0.stepgen.00.enable
net y-enable joint.1.amp-enable-out => hm2_7i76e.0.stepgen.01.enable
net z-enable joint.2.amp-enable-out => hm2_7i76e.0.stepgen.02.enable

# Define feedback for each axis (if encoders are used)
# net x-encoder-pos <= hm2_7i76e.0.encoder.00.position
# net y-encoder-pos <= hm2_7i76e.0.encoder.01.position
# net z-encoder-pos <= hm2_7i76e.0.encoder.02.position

# Feedback to LinuxCNC
# net x-pos-fb hm2_7i76e.0.encoder.00.position => joint.0.pos-fb
# net y-pos-fb hm2_7i76e.0.encoder.01.position => joint.1.pos-fb
# net z-pos-fb hm2_7i76e.0.encoder.02.position => joint.2.pos-fb

# Estop and machine enable chains
net estop-in <= hm2_7i76e.0.gpio.00.in_not
net estop-out => hm2_7i76e.0.watchdog.timeout
net machine-enable <= iocontrol.0.machine-enable => hm2_7i76e.0.watchdog.enable

# Make sure to add additional configuration as needed for your specific setup,
# such as spindle control, coolant control, additional axes, or other I/O.
```

This template provides a basic structure. You'll need to adjust it to fit your 
specific Mesa card model and setup, especially the `loadrt hm2_eth config` 
line, which depends on the capabilities of your Mesa card and the exact 
hardware you're interfacing with. Also, uncomment and configure the encoder 
sections if your machine uses encoders for feedback.

For detailed customization, consult the LinuxCNC documentation, the Mesa card 
manual for your specific model, and possibly the LinuxCNC forums for community 
support.



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