-
> From: Jon Elson
> Sent: Wednesday, May 15, 2024 7:20 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Acceleration Settings?
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> On 5/15/24 12:23, Todd Zuercher via Emc-users wrote:
> > I'm tryin
2031
-Original Message-
From: Jon Elson
Sent: Wednesday, May 15, 2024 7:20 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Acceleration Settings?
[EXTERNAL EMAIL] Be sure links are safe.
On 5/15/24 12:23, Todd Zuercher via Emc-users wrote:
> I'm trying to figure
On 5/15/24 19:21, Jon Elson wrote:
On 5/15/24 12:23, Todd Zuercher via Emc-users wrote:
I'm trying to figure out something goofy that seems to be going on
with my acceleration settings.
I'm running Linuxcnc 2.9.0 and Axis ui.
I have all of the max_acceleration settings set for 20.0 (and
stepge
On Wed, 15 May 2024, John Dammeyer wrote:
Date: Wed, 15 May 2024 16:57:44 -0700
From: John Dammeyer
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: Re: [Emc-users] Acceleration Settings?
-Origina
> -Original Message-
> From: Jon Elson [mailto:el...@pico-systems.com]
> Sent: May 15, 2024 4:20 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Acceleration Settings?
>
> On 5/15/24 12:23, Todd Zuercher via Emc-users wrote:
> > I'
On 5/15/24 12:23, Todd Zuercher via Emc-users wrote:
I'm trying to figure out something goofy that seems to be going on with my
acceleration settings.
I'm running Linuxcnc 2.9.0 and Axis ui.
I have all of the max_acceleration settings set for 20.0 (and stepgen_maxaccel
= 25), and for some reaso
I'm trying to figure out something goofy that seems to be going on with my
acceleration settings.
I'm running Linuxcnc 2.9.0 and Axis ui.
I have all of the max_acceleration settings set for 20.0 (and stepgen_maxaccel
= 25), and for some reason everything only moves with an acceleration of 10
ip
Gosh this was almost 2 years ago. Don't even remember why I was asking.
John
> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: February 23, 2024 10:30 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] A
otor
> being run by one of Jon's pwm-servos. Both solutions would need far less
> electrical power to get the job done than a steeper could do.
>>> -Original Message-
>>> From: gene heskett [mailto:ghesk...@shentel.net]
>>> Sent: June-16-22 6:34 PM
>
ists.sourceforge.net
Subject: Re: [Emc-users] Acceleration question.
On 6/16/22 20:54, John Dammeyer wrote:
OK. I realize this will be a dumb question but please bear with me especially
since I've included the ability
to accelerate in my Electronic Lead Screw project.
A friend and I were discus
On Fri, 17 Jun 2022 at 18:02, Chris Albertson wrote:
1) Model the flywheel in CAD, and get the moment of inertia that way
(make sure you look at the right one, which will depend on the
orientation that you modelled it at)
2) Calculate how much energy is in the flywheel at target speed. E = 1/2 I
...@gmail.com]
> Sent: June-16-22 10:29 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Acceleration question.
>
> OK, here is the problem.
>
> 1) we can not know the distance from the mass to the center of the wheel.
> Mass is always distributed, It al
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: June-16-22 10:29 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Acceleration question.
>
> OK, here is the problem.
>
> 1) we can not know the distance from the mass to the
> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: June-16-22 10:29 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Acceleration question.
>
> OK, here is the problem.
>
> 1) we can not know the distance fro
onds. What size motor then?
>
>
>
> > -Original Message-
> > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> > Sent: June-16-22 6:56 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Acceleration question.
> >
> > Knowing
On 6/16/22 21:57, John Dammeyer wrote:
Hi Gene,
Quite right. That link I posted used a table while in fact, as you pointed out, the mass
is mostly on the outside of a flywheel with spokes. I would imagine at there is some
average where if it's a 300 lb disk that is 24" might be the same as a
l Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: June-16-22 6:56 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Acceleration question.
>
> Knowing the mass of the wheel is not enough, you need to know how far the
> mas
ze 23 300 oz-in.
>
> Could that actually bring a flywheel up to that speed in 5 seconds?
>
> > -Original Message-
> > From: gene heskett [mailto:ghesk...@shentel.net]
> > Sent: June-16-22 6:34 PM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] Acce
Knowing the mass of the wheel is not enough, you need to know how far the
mas is from the center of rotation. They call this "Moment of inertia"
There are ways of calculating this for simple wheel shapes like a plain
disk but for anything else you are best off if you just measure it.
The simples
t; From: gene heskett [mailto:ghesk...@shentel.net]
> Sent: June-16-22 6:34 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Acceleration question.
>
> On 6/16/22 20:54, John Dammeyer wrote:
> > OK. I realize this will be a dumb question but please bear with
On 6/16/22 21:09, John Dammeyer wrote:
Addendum to this:
https://www.orientalmotor.com/motor-sizing/rotaryDevice-sizing.html#QuickReport
I chose a 24" disk, 5 seconds to get up to 50 RPM.
That's going to work for a flat plate, but will give you
a low answer with disappointing results for the c
On 6/16/22 20:54, John Dammeyer wrote:
OK. I realize this will be a dumb question but please bear with me especially
since I've included the ability to accelerate in my Electronic Lead Screw
project.
A friend and I were discussing bringing a 300 pound flywheel up to speed.
Vz=0 RPM, Vf=50
achine Controller (EMC)
> Subject: [Emc-users] Acceleration question.
>
> OK. I realize this will be a dumb question but please bear with me
> especially since I've included the ability
> to accelerate in my Electronic Lead Screw project.
>
> A friend and I were discussin
OK. I realize this will be a dumb question but please bear with me especially
since I've included the ability to accelerate in my Electronic Lead Screw
project.
A friend and I were discussing bringing a 300 pound flywheel up to speed.
Vz=0 RPM, Vf=50 RPM. Reduction drive to the flywheel shaft
at I hadn't noticed till now.
> > -Original Message-
> > From: Gene Heskett [mailto:ghesk...@shentel.net]
> > Sent: February-21-20 5:17 PM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] Acceleration with jog buttons
> >
On Friday 21 February 2020 20:37:30 Sam Sokolik wrote:
> What version of linuxcnc are you running? Could it be 2.8 or newer?
>
> If it is take a look at axis.x.jog-accel-fraction - maybe it isn't 1?
Something else I've not heard of. Time to read Documentation.pdf, again.
> On Fri, Feb 21, 2020
Nope. IPS. I've often wondered why it was done that way.
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: February-21-20 5:17 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Acceleration with jog buttons
>
What version of linuxcnc are you running? Could it be 2.8 or newer?
If it is take a look at axis.x.jog-accel-fraction - maybe it isn't 1?
On Fri, Feb 21, 2020 at 7:19 PM Gene Heskett wrote:
> On Friday 21 February 2020 17:43:34 John wrote:
>
> > Inches at the moment since the screws are imperi
On Friday 21 February 2020 17:43:34 John wrote:
> Inches at the moment since the screws are imperial. And 3.3 x 60 is
> almost 200ipm. So plenty of speed.
>
But that 3.3 is IPM, not IPS.
> Sent from John's iPhone 4S
>
> On 2020-02-21, at 2:23 PM, Gene Heskett wrote:
> > On Friday 21 February 20
>
>> I'm confused about the acceleration parameters.
>> In the hal file.
>> setp stepgen.1.maxaccel [AXIS_1]STEPGEN_MAXACCEL
>>
>> Which comes from the ini file.
>> MAX_VELOCITY = 3.3
>> MAX_ACCELERATION = 15.0
>> STEPGEN_MAXACCEL = 35.0
>>
>> What I'm finding is if I do a G00 X5
>> It accele
Inches at the moment since the screws are imperial. And 3.3 x 60 is almost
200ipm. So plenty of speed.
Sent from John's iPhone 4S
On 2020-02-21, at 2:23 PM, Gene Heskett wrote:
> On Friday 21 February 2020 17:02:13 John Dammeyer wrote:
>
>> I'm confused about the acceleration parameters.
>>
On Friday 21 February 2020 17:02:13 John Dammeyer wrote:
> I'm confused about the acceleration parameters.
> In the hal file.
> setp stepgen.1.maxaccel [AXIS_1]STEPGEN_MAXACCEL
>
> Which comes from the ini file.
> MAX_VELOCITY = 3.3
> MAX_ACCELERATION = 15.0
> STEPGEN_MAXACCEL = 35.0
>
> What I'm
I'm confused about the acceleration parameters.
In the hal file.
setp stepgen.1.maxaccel [AXIS_1]STEPGEN_MAXACCEL
Which comes from the ini file.
MAX_VELOCITY = 3.3
MAX_ACCELERATION = 15.0
STEPGEN_MAXACCEL = 35.0
What I'm finding is if I do a G00 X5
It accelerates very quickly.
But if I use th
On Thursday 31 August 2017 07:05:44 theman whosoldtheworld wrote:
> seems really a confusion ... but not from XHC and acceleration, but
> from velocity and acceleration . In fact, but it may be that I
> lost something in the meantime, I do not remember it is possible to
> change axses accelera
seems really a confusion ... but not from XHC and acceleration, but from
velocity and acceleration . In fact, but it may be that I lost
something in the meantime, I do not remember it is possible to change axses
acceleration on Lcnc, but only speed. I think in the new versions 2.8 there
should
I have an XHC-HB04 18-button wireless MPG on my mill. It's amazing that it
works on LinuxCNC. But I found something confusing about acceleration:
1. The acceleration in [XHC_HB04_CONFIG]mpg_accels seems to have an
effect on both jogging and program running. Isn't it supposed to affect MPG
regards,
-- --
Glenn
Rapid Converting LLC
-Original Message-
From: Jeshua Lacock [mailto:jes...@3dtopo.com]
Sent: Monday, January 25, 2010 5:43 PM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] Acceleration / Deceleration
Greetings,
I finally have my timing belts on my
On Mon, Jan 25, 2010 at 06:42:34PM -0700, Jeshua Lacock wrote:
> So I was wondering if it is possible to control the acceleration and
> deceleration values independently?
No, it's not currently possible.
Among other reasons, emc's trajectory planner uses the assumption that
acceleration and dec
Greetings,
I finally have my timing belts on my machine and starting to do some
real calibration on it!
It seems to flawlessly handle insane acceleration rates (2 horsepower
servo geared down 2 to 1) - but when it brakes at that rate it causes
the top of my gantry to wobble (the top of the
Jimmy,
'single radial acc' does not exist in emc
the quote you mentioned was in context of 'cnc controls' , not 'emc'
regards
tomp
Jimmy Schneiderman wrote:
> Dear Tomp,
>
> Where are located linear accelation parameter per linear axis and where is
> located the single radial accelation parameter
On Fri, 2008-11-07 at 13:34 -0200, Jimmy Schneiderman wrote:
> Dear Tomp,
>
> Where are located linear accelation parameter per linear axis and where is
> located the single radial accelation parameter for all angular axis in the
> LinuxCNC Program?
>
> Regards,
> Jimmy
EMC2 is configured by the
Dear Tomp,
Where are located linear accelation parameter per linear axis and where is
located the single radial accelation parameter for all angular axis in the
LinuxCNC Program?
Regards,
Jimmy
2008/11/7, tomp <[EMAIL PROTECTED]>:
>
> Jeff Epler wrote:
> > For trivial kinematics machines, emc
Jeff Epler wrote:
> For trivial kinematics machines, emc should always stay within the
> inifile acceleration limits. If it doesn't, there's a bug.
>
> The main acceleration-related difference I recall for arcs is that
> the centripetal acceleration required to follow the arc may affect the
> maxi
For trivial kinematics machines, emc should always stay within the
inifile acceleration limits. If it doesn't, there's a bug.
The main acceleration-related difference I recall for arcs is that
the centripetal acceleration required to follow the arc may affect the
maximum attainable velocity.
Can
To All,
Does anyone knows if there are different sets of acceleration for linear
movements and curves?
Jimmy
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