On 29 June 2011 16:08, For Sale Sticker <e...@forsalesticker.com> wrote:
>> You can choose to buss the enables for each drive together as one, >> or keep them separate, or for testing just jumper them. > > OK. Not sure what you mean here. What should I consider when making this > choice? The only issue is if your signals are strong enough to drive 3 inputs on the drives. Probably not if connecting direct to the parallel port. > I do have a PC with a parallel port and was planning on using that. I don't > know what an external pulse generator board is? It is a board the offloads the task of creating high-frequency step/dir signals to external hardware, rather than doing it inside the EMC2 software. Keep it in mind as a fallback plan. > 1 - disconnect the cable from the board see: > http://www.forsalesticker.com/bboard.jpg > The one towards the left with the blue cable comming off. > 2 - use a gender changer Does the blue wire run direct to the drives? >> What is a breakout board or a opto-isolation board? Something like this: http://cgi.ebay.co.uk/5-Axis-Breakout-Board-Stepper-Motor-Driver-CNC-Mill-/250847059324 (Though not necessarily that particular one). it converts the DB25 to individual terminals to make wiring easier, and uses opto-isolation so that faults in the drive electronics etc can't damage the parallel port. It will also tend to "beef up" the signals a bit. A typical p-port can source 5mA and sink 15mA, and that isn't very much. I have never bothered (the inputs to my stepper drives are opto-isolated internally) and just wired the drives direct to a DB25 socket. -- atp "Torque wrenches are for the obedience of fools and the guidance of wise men" ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
