Newbie questions

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Newbie questions

Postby henrik lagesson » Tue Apr 02, 2019 9:47 am

Hello.
I am building a plasma table with
uc300 eth and uccnc .
I have two breakout boards connected .
My plan was to use one board to controll x and y axis and
The limit switches .
And the other board to controll z axis and the thc signals.

I have the machine connected so the motors are running.
But where do i connect the signal to turn on the plasma arc ? Is it spindle relay m3
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Re: Newbie questions

Postby Robertspark » Tue Apr 02, 2019 8:05 pm

Yes M3

It will be fine to use two bobs
Rob
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...working my way through the 1000+ ways things don't work to find the one that does
UC400eth, UC300eth, UCCNC v1.2110, Neuron Lite
UCCNC v1.2110 Macro Manual
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Re: Newbie questions

Postby asuratman » Thu May 09, 2019 2:54 pm

What is in M3 ? I found only : exec.DospinCW();
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Re: Newbie questions

Postby ger21 » Thu May 09, 2019 3:08 pm

It just activates the assigned output pin when M3 is called.
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Re: Newbie questions

Postby cncdrive » Thu May 09, 2019 3:14 pm

Yes, but in plasma control the machine movement (motion g-codes execution) also waits for the M3 when the THC control is switched on.
So, in plasma control the M3 is more than just an output pin.
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Re: Newbie questions

Postby beefy » Thu May 09, 2019 11:14 pm

cncdrive wrote:Yes, but in plasma control the machine movement (motion g-codes execution) also waits for the M3 when the THC control is switched on.
So, in plasma control the M3 is more than just an output pin.


Hi Balazs,

I always thought that when THC control is switched on, XY moves only happen when an Arc OK signal is received. So M3 is issued than the system waits for Arc OK to become active before XY moves start, correct ??

Or do you mean it is a combination of the two, i.e. when using plasma you MUST use M3 to start the torch, and only then the system waits for Arc OK before starting XY moves.

So if THC was enabled, and I had my own custom macro M2000 to start the torch (the macro turned on an output that fired the torch for example), then UCCNC would NOT wait for Arc OK before commencing XY moves ???

Keith.
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