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Author Topic: USB controller card and MPG  (Read 1576 times)

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USB controller card and MPG
« on: June 10, 2015, 09:32:11 PM »
I have Mach3 connected via USB to a Xulifeng (aka Leafboy) controller card. I just bought an XHC HB04 pendant with an MPG. All the functions work except for the MPG. The wheel itself works in continuous and step mode. In MPG mode it operates as if it's in step mode. After much head-scratching is occurs to me that the MPG might be incompatible with this setup. Unlike parallel cards where Mach3 is sending steps, the USB interface is sending some higher level commands. It occurs to me that the USB interface might not support MPG, either because Mach3 doesn't offer low enough level commands, or because the vendor didn't implement the MPG level commands. Anyone know which of these many possibilities is correct?