Thread: MACH3 Plasma help please
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02-01-2017 #1
I am re-vamping a plasma table that I bought from a chap who scratch built it. It all works very well, and I have re-housed his existing AM882 stepper drivers and Purelogic (Russian) Ethernet to Parallel, and BOB and torch height controller in a more robust manner - it all still works (phew!)
I have added an 'under hood' and huge downdraught fan as a direct crib of DaveK0974's design (with his permission) and now I want to control the fan via MACH3 - the BOB has three uncommitted relay outputs, one of which I've connected to drive a beefier relay to control the fan (65 cu M / Min !!!)
However I'm failing to understand the (to me) obscurities of the manual for the BOB (attached) - I'm no MACH-3 expert and would ask if anyone who has more MACH-3 experience could interpret what they are saying re: the relay outputs as there seem to be too many perms and comms for my poor old brain to understand. Ideally I want to turn the relay on when the cut starts, and turn it off a predetermined time after the cut ceases, but just to turn it on and off would be nice :)Last edited by AndrewMawson; 02-01-2017 at 07:40 PM.
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