Thread: Mach3 and VFD Wiring
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..Clive
The more you know, The better you know, How little you know
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19-03-2016 #12
For a bit more money the Mach3 Controllers on eBay look a better option! I also use a 4th axis slaved to my Y so the Arduino sounds like it'll fall short of my needs.
Regardless of having no automatic speed control setting - last night I fired my baby up with it's spindle for the first time and it made it's virgin cut!
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19-03-2016 #13
The most cost affective way for you at this moment given your limited CNC knowledge is forget Speed control from software. You'll hardly use it anyway and from what I'm reading having to Cam the spindle speed for each tool and material will cause you trouble at first while learning.
So the cheapest solution is buy Potentiometer and fit to VFD for easy manual speed control. Cost about £2 and fitted in minutes. Search the Forum and Clive S has explained how to do it and whats needed.
Then buy one of these and control the VFD ON/OFF using relay using Output from bob. Even the crapest Bob's will control this.
http://www.ebay.co.uk/itm/2-channel-...EAAOSwAYtWI-coLast edited by JAZZCNC; 19-03-2016 at 11:03 AM.
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19-03-2016 #14
Ok first let me just clear you up on something.? Mach3 is the controller, or more correctly the Control software. BOB's are just a distribution device and control nothing. There only purpose is to make wire connections easier and in some cases offer protection to the PC.
Higher spec'd Bob's offer extra options like having built in Relays or Speed control but again they Control Nothing. They just only provide the means mach3 does all the controlling.
Also Mach3 while being the Controller doesn't make any decision on what spindle speed or feed rate to use. It just does what you tell it. Either thru G-code or manual commands and buttons or sliders on screen.
So these controllers on Ebay are more likely just BOB with few bells n whistles. Show use.?
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Search the Forum and Clive S has explained how to do it and whats needed
http://www.mycncuk.com/threads/7388-...hlight=fitting..Clive
The more you know, The better you know, How little you know
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The Following User Says Thank You to Clive S For This Useful Post:
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19-03-2016 #16
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22-03-2016 #17
75p delivered from RS of all places.. never thought I'd be shouting about a bargain from them!
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