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Author Topic: Mach4 Printer Port Discussions  (Read 891669 times)

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Re: Mach4 Printer Port Discussions
« Reply #840 on: October 16, 2015, 03:21:37 PM »
I tried, but it doesn't help.
Any other suggetions?

Offline ART

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Re: Mach4 Printer Port Discussions
« Reply #841 on: October 16, 2015, 04:26:48 PM »
Im afraid I cant think of any reason off hand why the motion would be hesitant. The driver stats are great, so the timer seems to be running fine. It could be video card or something slowing
the system or some other effect, but I havent experienced anything like that in m4, its always been smoother than mach3 for me.

Art

Offline Greolt

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Re: Mach4 Printer Port Discussions
« Reply #842 on: October 22, 2015, 08:59:44 PM »
Art

I am sorry if this is the wrong place for my question.

Specifically to do with plasma functions.    

1:  Torch on and off signal coming from Mach4
Is there a delay in this?

2:  Up/down signals coming from a simple THC (eg Proma)
Does Darwin handle this or is it passed to Mach4?

3:  Consequent movement (steps) being sent to the Z axis in response to up/down signal
Does Darwin do this, or again, Mach4?
If Darwin does this, does it know when Mach4 should ignore up/down?  Eg when travel falls below a set % (anti dive) or when there is no ArcOK signal.

If Mach4 handles up/down THC movement, is there any acceleration ramp on those moves?

Thanks

Greolt

Offline ART

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Re: Mach4 Printer Port Discussions
« Reply #843 on: October 22, 2015, 09:08:17 PM »
Hi  Greolt:

    Darwin knows nothing of THC. It will pass signals from pins back to M4, but it has no idea what M4 will do with them.
You may want to ask the guys at M4 what thc functions are built into Mach4, but natively Darwin has none.

Art

Offline dude1

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Re: Mach4 Printer Port Discussions
« Reply #844 on: October 22, 2015, 09:11:46 PM »
ha art I have been trying to get my old win xp working with M4 and darwin again whatever you did to darwin (2686) it works fine. I just cant start M4 at all and Gearotic does not work at all as well

DanL

Offline ART

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Re: Mach4 Printer Port Discussions
« Reply #845 on: October 22, 2015, 09:29:40 PM »
Dan:

 Youd need to put in the CVruntimes for VS2013..

Art

Offline Greolt

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Re: Mach4 Printer Port Discussions
« Reply #846 on: October 22, 2015, 10:18:35 PM »
Darwin knows nothing of THC. It will pass signals from pins back to M4, but it has no idea what M4 will do with them.

Thanks Art

My understanding was that with Mach3, the THC up/down moves  were done by the LPT driver.  Hence no acceleration on those movements.

Perhaps I am getting confused.  I am sure the Smoothstepper, for example, handles that THC stuff.  Thought the LPT driver did too.

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Re: Mach4 Printer Port Discussions
« Reply #847 on: October 23, 2015, 12:11:36 AM »
thanks Art will try over the weekend I will report back in the yahoo group and here

Offline ART

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Re: Mach4 Printer Port Discussions
« Reply #848 on: October 23, 2015, 08:00:20 AM »
>>My understanding was that with Mach3, the THC up/down moves  were done by the LPT driver.

  They were. However, the spec of Mach4 was that such things were not to be done by the device. Darwin was completed long before Mach4
and to that original spec. There is no backlash or thc in Darwin. Darwin is at this point meant to be a bridge, it allows you to use Mach4 as
a printer port user, but its capabilities will never be increased, it is a basic 4 axis printer port driver that will do most things, but it wont
do THC, Backlash or threading.

Art

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Re: Mach4 Printer Port Discussions
« Reply #849 on: October 23, 2015, 08:06:23 PM »
Hi All:

  A bug was found tonight an fixed which caused the overbuffer error on jog. Here is a new plugin, an official one will be released soon.
You only need the mcDarwin.m4pw and mcDarwin.sig files replaced to fix the trouble..

Art