On Wednesday 15 January 2020 22:10:37 Brent Loschen wrote:
> On 1/15/2020 3:22 PM, Gene Heskett wrote:
> > I should probably interject here that with a good high-res encoder,
> > it won't care about the wobbly speed mechanics as long as it keeps
> > on turning under load. The z axis rigid tapping
On 01/15/2020 09:10 PM, Brent Loschen wrote:
In addition to the split pulleys, my "mechanical" concerns
are more along the lines of the heavy duty electrical
contactors clunking every time the fixed speed, 3 phase AC
spindle motor is called to switch back and forth;
increased heat in the
On 1/15/2020 3:22 PM, Gene Heskett wrote:
I should probably interject here that with a good high-res encoder, it
won't care about the wobbly speed mechanics as long as it keeps on
turning under load. The z axis rigid tapping motion is 100% controlled
by the spindle position as it turns. Since
On Wednesday 15 January 2020 13:18:09 Brent Loschen wrote:
> Thanks for your reply Andy, and yes, PWM would be odd choice for the
> BP. I chose PWM for this "lab" project, because in addition to the BP
> mill, I have a LCNC router with an analog controlled VFD which is next
> in line for a
On Wednesday 15 January 2020 12:23:59 N wrote:
> On Tue, 14 Jan 2020 13:26:07 -0800
>
> Chris Albertson wrote:
> > You are applying 300 patches all at once? The chance of that
> > working is about zero.
>
> Or you are the most lucky programmer ever.
>
Nahh. kernel patches are often that big
Thanks for your reply Andy, and yes, PWM would be odd choice for the
BP. I chose PWM for this "lab" project, because in addition to the BP
mill, I have a LCNC router with an analog controlled VFD which is next
in line for a conversion. Getting an analog controlled PWM to work
properly
On Tue, 14 Jan 2020 13:26:07 -0800
Chris Albertson wrote:
> You are applying 300 patches all at once? The chance of that working
> is about zero.
Or you are the most lucky programmer ever.
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On Wed, 15 Jan 2020 at 03:09, Brent Loschen wrote:
> The DC motor speed is
> currently controlled with a pot wiper on a small PWM driver board. The
> goals of this test bed are to show spindle RPM , control the DC motor
> with 0-5vdc from the 7i76 , and use knowledge gained to convert the BP.
