Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: ThorstenU on July 21, 2013, 04:04:33 AM
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Hello,
i bought a new USB Motion Board for Mach3, so i my machine can have more Input signals.
Here you can see the card on ebay http://www.ebay.de/itm/3-axis-CNC-USB-Card-Mach3-Breakout-Board-Interface-200KHz-windows2000-xp-vista-/261163685477?pt=Motoren_Getriebe&hash=item3cce919665 (http://www.ebay.de/itm/3-axis-CNC-USB-Card-Mach3-Breakout-Board-Interface-200KHz-windows2000-xp-vista-/261163685477?pt=Motoren_Getriebe&hash=item3cce919665)
But now the z Achse does not move up and down. The light for the input signal is flashing and mach3 does say the same.
But nothing happens when the TH Up and Down signal is active.
What could be my problem. With my normal breakout board everything worked fine.
Thanks from germany
Thorsten
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Mach's full THC capability only exists in the parallel port driver.
Ian
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ok, thats not good. How can i fix it?
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Fix what?
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How can i use my thc control with the usb board.
Or is there no possibility?
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I know of NO external motion card that supports THC. AFAIK it's parallel port only.
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CSMIO and I think SmoothStepper support THC, possibly others, but as Ian has eluded to, the THC function has to be supported by the device you are using, whether that is Parallel Port or an external controller.
You need to talk to the maker of your USB controller and get them to add that function if it is not already supported.
Hood
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OK Hood - thanks - I didn't know the CSMIO supported THC. I know the SS didn't used to but maybe that's changed.
@Thorsten - out of interest what THC are you using and why do you need more inputs than the PP gives you?
Ian
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Hi Ian,
have attached a couple of screenshots of both SS and CSMIO plugins, as you can see THC options are there in both. How well they work I have no idea as I dont use Plasma but I have heard from people that the CSMIO one works as expected.
Hood
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ok,
but thats means i can not use the usb card?! Sorry, me english is not so good.
I am using the proma THC from ebay.
i need 6 input signals.
x,y and Z home switch. And THC Up, down and Arc ok.
Is there a card with PP with 6 input signals? I only found 5
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You will have to contact the makers of your USB board and ask them if THC is supported.
If it is not then you will have to ask them if they can add that functionality to the plugin for their board.
Hood
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ok,
but thats means i can not use the usb card?! Sorry, me english is not so good.
I am using the proma THC from ebay.
i need 6 input signals.
x,y and Z home switch. And THC Up, down and Arc ok.
Is there a card with PP with 6 input signals? I only found 5
You don't need two inputs for x and y home switches you can wire them in series to one pin.
Ian
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You will have to contact the makers of your USB board and ask them if THC is supported.
If it is not then you will have to ask them if they can add that functionality to the plugin for their board.
Hood
Picky I know - but I think the THC functionality has to be in the firmware of the board not the plugin.
Ian
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You don't need two inputs for x and y home switches you can wire them in series to one pin.
I didn´t thought that way.
The homeswitches are all openers. I will try it.
Thanks
Thorsten