On Sun, Oct 28, 2018 at 10:59 AM Peter C. Wallace wrote:
> On Sun, 28 Oct 2018, Chris Albertson wrote:
>
> > Date: Sun, 28 Oct 2018 10:41:14 -0700
> > From: Chris Albertson
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: "Enhanced Machine Controller (EMC)" >
> > Subject: Re:
>From Andy: Though it is hardware-capable of doing +/- 10V, it has the
inputs to measure that, and then the rest is just software. (And given
that it has a linuxCNC-like HAL layer, it would just be a case of
configuring a different command module)
I was just reading up on the STMBL and I had for
On Sat, Oct 27, 2018 at 8:26 PM Gene Heskett wrote:
> On Saturday 27 October 2018 19:23:58 Chris Albertson wrote:
>
>
> Sorry, I've never knowingly touched an arduino, so I know pretty close to
> zip about them. The speed specs have never impressed me. OTOH, one per
> axis could probably get the
On Sun, 28 Oct 2018 at 18:00, Mark Johnsen wrote:
> There's the venerable STMBL project: https://github.com/rene-dev/stmbl
> Although, I've read one ic chip/part is hard to find and the developer is
> updating the design. Also, it doesn't do +-10Vdc input
Though it is hardware-capable of doing
On Sun, 28 Oct 2018 at 17:43, Chris Albertson wrote:
> Then perhpas this is the wrong method.
An important point here, that I thought I had addressed, is that it
doesn't really matter.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mecha
Depends on what you're looking for and experience integrating servos. Many
(too) options.
Both MESA and PicoSystems have servo amp options. They've been invaluable
to the LinuxCNC community.
http://www.mesanet.com/motioncardinfo.html
https://pico-systems.com/pwmservo.html
I've heard that DMM is
On Sun, 28 Oct 2018, Chris Albertson wrote:
Date: Sun, 28 Oct 2018 10:41:14 -0700
From: Chris Albertson
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] 5I25-7i76 encoder output
On Sun, Oct 28, 2018 at 5:15 AM andy pugh wrote
On Sun, Oct 28, 2018 at 5:15 AM andy pugh wrote:
> On Sun, 28 Oct 2018 at 07:17, Chris Albertson
> wrote:
>
> > Or switch to the other method. Rather then count "ticks" you count the
> > microseconds between the ticks.
>
> The Mesa encoder counter already does this.
>
Then perhpas this is the
somone know a good bldc motor drive connect to a 7i77 like a servo drive AC?
regards
bkt
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
On Sat, 27 Oct 2018, Gene Heskett wrote:
Date: Sat, 27 Oct 2018 03:40:48 -0400
From: Gene Heskett
To: emc-users@lists.sourceforge.net
Cc: Peter C. Wallace
Subject: Re: [Emc-users] 5i25 gpio's
On Friday 26 October 2018 23:26:38 Peter C. Wallace wrote:
On Fri, 26 Oct 2018, Gene Heskett wrote:
On Sat, 27 Oct 2018, Alan Condit wrote:
Date: Sat, 27 Oct 2018 18:46:59 -0700
From: Alan Condit
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Emc-users@lists.sourceforge.net"
Subject: [Emc-users] 5I25-7i76 encoder output
I have a homemade encoder on my lathe spindle. I am feeding th
On Sun, 28 Oct 2018 at 07:17, Chris Albertson wrote:
> Or switch to the other method. Rather then count "ticks" you count the
> microseconds between the ticks.
The Mesa encoder counter already does this.
It may be that the home-made encoder does actually have some angular
noise, so the measur
On Sun, 28 Oct 2018 at 03:02, craig wrote:
> 3 of the 4 pin connectors go to KL23H276-30-4A stepper motors on the
> mill; the 4^th is not connected. On the KL-5056 micro-stepping and
> current are set with 8 switches. (3 controlling peak current, one
> reducing current at standstill and 4 control
> ,
> that I was able to run the P-Gain from 3 on up to the 20-40 area.
> Spindle speed control is so accurate that until the chirp of the current
> limit of the pwm-servo I'm driving that motor to around the 2 hp mark
> with, I have no clue that its working that hard. So I would highly
> recommend
I've seen this too. non-constant RPM when you know the rotating mass has
enough inertia that the RPM can change so fast.
What I found is that the resolution of measuring the encoder is low and
what I see is quantization noise.This means I'm not sampling with
enough bits. You are sampling to
15 matches
Mail list logo
