tatic friction but not have the motor over speed with kinetic friction.
John
> -Original Message-
> From: Thaddeus Waldner [mailto:thadw...@gmail.com]
> Sent: April-10-22 8:31 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Controlling DC motors.
>
>
This idea is still in use today with proportional hydraulic valves; you use a
PWM frequency that is low enough to induce a slight continuous vibration in the
valve, to overcome stiction.
> On Apr 10, 2022, at 6:49 PM, Chris Albertson
> wrote:
>
> I'd say this thing was a vibrator with a DC co
; > John
> >
> > > -Original Message-
> > > From: dave engvall [mailto:dengv...@charter.net]
> > > Sent: April-10-22 9:23 AM
> > > To: emc-users@lists.sourceforge.net
> > > Subject: Re: [Emc-users] Controlling DC motors.
>
g like this.
> John
>
> > -Original Message-
> > From: dave engvall [mailto:dengv...@charter.net]
> > Sent: April-10-22 9:23 AM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] Controlling DC motors.
> >
> > Clearly OT!
> >
om: dave engvall [mailto:dengv...@charter.net]
> Sent: April-10-22 9:23 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Controlling DC motors.
>
> Clearly OT!
> Indeed electronics have�� come a long ways since then.
> I still have my Dad's 200 w-sec str
gt; Sent: April-10-22 2:29 AM
> To: Enhanced Machine Controller (EMC)
> Cc: Gregg Eshelman
> Subject: Re: [Emc-users] Controlling DC motors.
>
> In other words the person who designed that created a pulse width modulation
> motor controller without calling it that.
>
>
&g
Clearly OT!
Indeed electronics have come a long ways since then.
I still have my Dad's 200 w-sec strobe. Oil filled caps from Edmund
Salvage dumped to the flash tube with a thrytron. Later vintage an
electronic ignition, nice toroid 6 v to 400 v converter and a decent SCR
for my PV544 (preg
That brings back memories. The fun of being at Grandma and Grandpa's was
the Popular Mechanics and Popular Science magazines I could page thru when
visiting.
I remember all the pages in the back of the magazine where people were
trying to sell things, I always wanted a VW Bug replica car conversi
Beat me to it. I was just about to say the exact same thing.
What comes around goes around.
Mark
On 4/10/22 05:28, Gregg Eshelman via Emc-users wrote:
In other words the person who designed that created a pulse width modulation
motor controller without calling it that.
On Saturday, April 9
In other words the person who designed that created a pulse width modulation
motor controller without calling it that.
On Saturday, April 9, 2022, 08:18:17 PM MDT, John Dammeyer
wrote:
Really nothing to do with LCNC or even automation.
I've been cleaning out old shelves and I have piles
10 matches
Mail list logo
