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buildbotics / bbctrl-firmware

Buildbotics CNC Controller Firmware
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Torch Height Control for plasma cutting #241

Open DougCoffland opened 4 years ago

DougCoffland commented 4 years ago

Choose a popular torch height control device and integrate it with the BB Controller.

jcoffland commented 4 years ago

Alternatively, we could implement a PID loop in the Buildbotics controller using an analog input and motor control. My understanding is that torch height controllers measure plasma torch current and use a PID loop to adjust torch height to maintain optimal current flow.

DougCoffland commented 4 years ago

I'm not sure, but I think some of them allow you to set the desired height and then they just send a signal that tells you when to go up and when to go down.

If we pick one like that, it seems like it would be easy might not be too hard to implement. Then we could offer it as an accessory.

On Mon, Jan 20, 2020 at 12:08 PM Joseph Coffland notifications@github.com wrote:

Alternatively, we could implement a PID loop in the Buildbotics controller using an analog input and motor control. My understanding is that torch height controllers measure plasma torch current and use a PID loop to adjust torch height to maintain optimal current flow.

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