> Can you describe the behaviour that you want? Do you want the spindle > speed to stay at the same speed high when you release the joypad, or > do you want it to return to the original speed? > > Have a look at the spindle pins in halui: > http://www.linuxcnc.org/docs/html/man/man1/halui.1.html > > Some of those should give you what you want. Depending on the actual > behaviour you want you will need either want to use the increase / > decrease or spindle-override pins. > > You may also need: > http://www.linuxcnc.org/docs/html/man/man9/conv_float_s32.9.html > > -- > atp
Andy, Spindle speed shouldn't be a problem. I think I even have a PWM to Voltage modules from Hohman Designs around here somewhere. The issue is that the Probotix cape only has 5 inputs simulating the parallel port. There is an A axis and an A axis limit input.so theoretically step/dir on the A axis can create pwm and therefore 0..10V or for that matter drive a stepper up to whatever max step rate drops the torque on the motor to no longer usable. If an Input can be used as a spindle then we're good to go there too. In the case of a Lathe the Y axis isn't needed either so really I guess I/O isn't the issue. The Beagle has an HDMI output and a single USB input. With a small USB expander I've had a keypad, mouse and an older LCD display working on it with an HDMI to VGA adaptor. I've run stock mill software using the MachineKit version and it fit inside a 4GB MicroSD card. The Microkit version from Probotix image downloaded at over 7GB. That too has me wondering. More on that perhaps later today. The original question was running a stepper as a spindle. I believe the answer was yes. Just have to figure out how to configure this. The warnings were valid, especially for a small lathe like a DB200 since it's used up to 5000 RPM for turning tiny things. As for threading of course I'd like to have it but realistically I also have a South Bend and a scratch built Gingery, both with an ELS. The Gingery has full automatic and has run MACH3. The Southbend only has a powered Z axis so threading is a manual X operation. But at I can do metric with it. John ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
