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
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
; >
> > > -----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.
> > >
s.
> 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!
> > Indeed el
ngvall [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 strobe. Oil filled
2 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.
>
>
> On Saturday, April 9,
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
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
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
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
Really nothing to do with LCNC or even automation.
I've been cleaning out old shelves and I have piles of Popular Electronics
Magazines. This one from December 1965 (yes, almost 57 years old) has an
article on how to improve model trains so they start slowly or crawl rather
than lurching
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