Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: iohan on February 16, 2014, 08:55:05 AM
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Hi, i'm new to this forum.
I have a problem setting up Proma THC with Mach3 and thought maybe some of u could help me resolve it.
I have installed the Proma THC correctly and while running testmode on the THC i see the yellow lights flash (THC UP/DOWN) in mach3 diagnostics.
My problem is that the Z-axis doesn't move from the inputs of the THC. I can jog the Z-axis with the keyboard.
Anyone know a solution to why Mach3 doesn't move Z-axis while it clearly gets input to do so?
Thank U!
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hi mate im having the same problem just woundering if you sorted it out and would have any info
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Do you have properly licensed Mach3 install??
THC only works on this.
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yeh mate I have got movment now but highly doubt iv done the right thing I'm sort of guessing a lot, I cant express just how green I am at all this. but I went into -ports and pins- -inputs- and right down the bottom where it says jog z axis up and down I set the same pin numbers that my THC sends to . what do you reckon is that loco!!!
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It **might** but I don't think you will find a Jog move is anything like a THC move - jogs use acceleration/deceleration curves, THC does not, it's just bang up, bang down and needs that due to the tiny window of time it has to operate in - the torch does not stop while the THC is adjusting the height, this is why we have the THC rate DRO - because you cannot bang an axis up and down at speed without accelerating it first so you have to use a percentage of the speed that DOES allow you to bang it up and down - usually around 20%
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yeh I figure as much, I have a full version and (allow THC) in mill settings is checked and the box THC in (plugin config ESS-v10hd2) . do I need to have anything checked in output signals , the machine runs well and I have cut a few things but just cant get this THC to respond , the THC input signals are set on active low and I can see them in the diagnostics screen
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Cant help with the ESS as I'm on parallel port here, no as long as you can jog the Z with the PgUp / PgDn keys on the keyboard there is no output to set.
Have you got an "Arc-Ok" signal? If yes then the "Allow THC when not in THC mode" should be unchecked I think.
Do you have a value in the THC rate DRO on the settings tab? Try 20% to start with.
You could try going into ports and pins, inputs, and flipping on "Emulated" for THC-Up & THC-Down, just for a test, this should allow you to kick the z up/down with the keyboard by pressing U & D respectively, may have to set that 'allow thc when not in thc mode' back to on to do this but put it all back afterwards.
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groovy I will give it all a try and see what happens