ELHIMA Moustapha wrote: > Dear All > > I'm thinking to put a potentiometer on my cnc lathe to control the feedrate, > for my machine > To control my machine I have just used 2 parports and I have the possibility > to use an another one, could you tell me if it's possible with HAL to hook my > potentiometer to the parallel port or the serial port > It's a 5K potentiometer, do you thinks that I can make that > No, a parallel port is digital, and cannot read analog values. But, you might want to look at building a simple pendant, like I have at http://pico-systems.com/pendant.html
The original version of this only permitted jogging the sxes, but I have added a few more switch positions and lines of HAL code, and now you can set the feedrate and spindle speed overrides as well. Jon ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
