diy thc

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19 Jul 2019 15:08 #139884 by getyers
diy thc was created by getyers
am building the comparator board but would like to know where the (arc ok ) goes on mach3 brearkout bob relay!. where the (thc up) and (thc down) goes to the stepper motor driver! and where does the (0volts) go. also can not find 20uf 35v cap so used 333uf 35v cap. any help please George
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19 Jul 2019 19:04 #139909 by tommylight
Replied by tommylight on topic diy thc
Is that a board made by you?
Are you trying to wire that board ?
Picture of the bob ?
The thc up, thc down and arc ok go to bob inputs, the +V and -V should come from the plasma cutter divider, not directly from torch and clamp.
Parallel port inputs are 10,11,12,13,15.
You also need a floating switch if you want it to be fully automated and sensing the material.
No need for limit switches or you can wire them all in series and use the 1 input that is left.

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20 Jul 2019 16:21 #139977 by getyers
Replied by getyers on topic diy thc
thank you for your response to a new user of cnc.
This is a cheap cnc THC
The board i am building is from a project i got from YouTube by a man called ADRIAN H.
Yes i am trying to wire the board up.


if there is any sketches you can give to a new cnc user would be good

i am also using LINUXCNC

thanks george
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