Hello Guest it is October 23, 2019, 04:11:25 AM

Author Topic: "Hold" command for arc controller unit.  (Read 8015 times)

0 Members and 1 Guest are viewing this topic.

Re: "Hold" command for arc controller unit.
« Reply #10 on: October 22, 2008, 05:13:13 PM »
So THAT"S what that is for......always wondered.
Thanks,
RC
Re: "Hold" command for arc controller unit.
« Reply #11 on: October 23, 2008, 02:03:40 AM »
Wow!
Thanks Fernando!
Cool! I 'll check immediatelly...
Re: "Hold" command for arc controller unit.
« Reply #12 on: October 23, 2008, 04:18:31 AM »
But, but, but...
Where to set the outout pin???
Re: "Hold" command for arc controller unit.
« Reply #13 on: October 23, 2008, 07:07:38 AM »
I Havent used it myself as i dont have a plasma.

But i think that if you have a THC with the workings of what the THC that was posted in the early versions of the mach manual, or a THC300 of sorts, then that should freeze the torch, without any pinouts

Best Regards
Fernando
Re: "Hold" command for arc controller unit.
« Reply #14 on: October 23, 2008, 07:10:35 AM »
I understand, but what i need is an output given to an externall arc voltage unit.
Re: "Hold" command for arc controller unit.
« Reply #15 on: October 23, 2008, 07:24:07 AM »
If it is a stand alone THC, then i believe that function will not work. That function should be included in the unit. if its not then....
hmmm maybe a brain would be the answer...

maybe you could have a solid state relay that interrupts the step output line from the pc to the driver, and have a brain look at the feed rate, make a calculation that says that if the feedrate is lower than X open that relay so that the driver doesnt receive the step signal.

or maybe better, have a brain monitor the feedrate, and make calculations not to fall under certain precentage, if it does open the relay.

I dont think there is a way to have mach actually monitor the toolpath to see when you hit a corner, or monitor a g code to see if you hit a g02 g03.

Hope that can get you started.
Regards
Fernando
Re: "Hold" command for arc controller unit.
« Reply #16 on: October 23, 2008, 09:05:12 AM »
OK.
Was fixed with a brain as shown to the attached bitmap, (just saying if anyone wants to do the same.)
This software is amazing. Think of something you want to do with a 6 axis software and you can do it immediatelly...
Thanks mach3....  :) he he
Re: "Hold" command for arc controller unit.
« Reply #17 on: October 23, 2008, 09:12:47 AM »
Thanks for posting Giannis,
What do you have hooked up to the pin on output 1?

Glad you got it working.
Regards
Fernando
Re: "Hold" command for arc controller unit.
« Reply #18 on: October 25, 2008, 08:39:00 AM »
I use a pin at the parallel port.
Passes through a buffer 74hct244, then controls an optocoupler, which holds a realy.
Re: "Hold" command for arc controller unit.
« Reply #19 on: March 15, 2013, 08:09:00 AM »
Hi Giannis;

That's exactly what we are need at the moment. We want to use Hypertherm Sensor PHC ( It's a standalone THC with corner hold signal input ) and MACH3.

Can you please share your feedback. Was your application succesfull?

Best Regards in advance.

Selim
OK.
Was fixed with a brain as shown to the attached bitmap, (just saying if anyone wants to do the same.)
This software is amazing. Think of something you want to do with a 6 axis software and you can do it immediatelly...
Thanks mach3....  :) he he