On Thu, 15 Jul 2010, Sebastian Kuzminsky wrote:
> Date: Thu, 15 Jul 2010 09:15:41 -0600
> From: Sebastian Kuzminsky <s...@highlab.com>
> Reply-To: "Enhanced Machine Controller (EMC)"
> <emc-users@lists.sourceforge.net>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Subject: Re: [Emc-users] Spindle at speed & Coordinated Motion problems?
>
> On 07/15/2010 08:54 AM, Peter C. Wallace wrote:
>> Maybe a HAL Comp that uses ddt but tosses crazy velocities
>> (uses previous calculated velocity if index has been detected)
>> would solve the problem
>>
>
> Sounds like a combination of ddt and lowpass.
>
> http://linuxcnc.org/docs/2.4/html/man/man9/ddt.9.html
> http://linuxcnc.org/docs/2.4/html/man/man9/lowpass.9.html
>
> --
> Sebastian Kuzminsky
> "The Martians continued hammering and stirring, sleepless,
> indefatiguable, at work upon the machines they were making. Now and
> again a light like the beam of a warship searchlight swept the commons,
> and the heat ray was ready to follow." -- War of the Worlds Dubstep
> <http://soundcloud.com/erwtenpeller/war-of-the-worlds>
>
Not quite, I was suggesting tossing bad data so even if the velocity is
filtered the bad data does not contribute to the average
Peter Wallace
Mesa Electronics
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