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General Mach Discussion / Testing parallel port output with a multimeter
« on: January 29, 2007, 10:29:14 AM »
Hello,
I'm new to CNC and desparately trying to set up my motors etc. I downloaded Mach3 and have been playing around with it. I have a db25 cable hooked up to my parallel port with a breakout on the end. I have no motors hooked up yet. In manual mode in Mach 3 I can "move" the x,y,and z with the arrow keys for example. Shouldn't I see fluctuations in the voltage on the various pins on my breakout? If not why not? If I should be seeing this but am not, what am I doing wrong? Thanks.
Cristobal
I'm new to CNC and desparately trying to set up my motors etc. I downloaded Mach3 and have been playing around with it. I have a db25 cable hooked up to my parallel port with a breakout on the end. I have no motors hooked up yet. In manual mode in Mach 3 I can "move" the x,y,and z with the arrow keys for example. Shouldn't I see fluctuations in the voltage on the various pins on my breakout? If not why not? If I should be seeing this but am not, what am I doing wrong? Thanks.
Cristobal