On Sat, 16 Nov 2019 at 21:39, Gene Heskett <[email protected]> wrote:
> It turn out that a pwmgen module to control the on time of this pump > motor is not sufficient to adequately control the pump as I cannot > control the rep rate, even at its minimum rate, once the pump is moving > on a per step basis, the minimum rep rate is too fast and it will dump > an 8oz bottle of mist fluid in half an hour or less. What I need is a > multivibrator whose on and off time I can control independently in order > to be able to pause longer between on pulses. I don't really understand what problem you are describing. But I am guessing that this pump is not being driven by a stepper motor as I suggested? So, maybe you need a pwmgen to control the motor speed when it is on, and another pwmgen to control when the motor is on? So use one very slow (5 seconds period?) pwmgen to enable the existing pwmgen. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
