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Author Topic: (db25) LPT port to stepper CNC  (Read 2693 times)

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Offline ijchan223Topic starter

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(db25) LPT port to stepper CNC
« on: March 07, 2015, 04:13:48 am »
Hi guys, i just started trying to interface an old MaxNC 10 SRV CNC machine with a windows pc. Because the machine is so old, the company only offer software to drive the machine with DOS. So i thought i would quickly throw together a board that will make it work with Mach3. My Idea is to make a simple PCB that feeds signals in to some A4988 stepper motor drivers. Here is my current design, can you guys give me some feedback on what improvements I need to make.




Stepper motor Drivers >>> https://www.pololu.com/product/1182

« Last Edit: March 07, 2015, 07:54:01 am by ijchan223 »
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Offline ijchan223Topic starter

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Re: (db25) LPT port to stepper CNC
« Reply #1 on: March 08, 2015, 04:14:06 am »
Changed my mind instead of making the adapter to convert the parallel port to the drivers, i purchased a breakout board that is isolated already. I will just attach the outputs to each driver with screw terminals since its not high current or anything .

http://www.ebay.com/itm/231314366776?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
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Offline ijchan223Topic starter

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Re: (db25) LPT port to stepper CNC
« Reply #2 on: March 08, 2015, 04:24:19 am »
Below i have attached a photo of the idea i have in mind.
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