On Wednesday 15 July 2015 01:09:42 Marius Alksnys wrote: > Sure, here they are: > http://robotech.lt/?p=56
Trying to learn something here, I see the use of several of the ddt modules, which appear to be used for detecting the slope, or change velocity, its output. But the manpage has a very high vacuum, so I looked it up on wikipedia. That is explained in more detail than my calculus deprived mind can gobble, but one thing stands out, and that is the lack of a reference input, other than saving a copy of the previous data so that a rate of change, aka velocity, can be determined. But one has to assume that as man 9 ddt makes no attempt to explain what it uses for the history reference. Looked at in that light, its possible that the un-initialized history could give bad data at the output, but then I'd say that has to be a vanishing error after the first 100 milliseconds of running when there is not any motion input change. OTOH, I haven't any experience with velocity driven servo's, and if I were to do a servo driven machine, I would automatically use position desired, and position feedback to achieve the desired result, a near vanishing position error. Where can I learn how a velocity servo achieves the positioning accuracy that allows it to do as good, or perhaps even better, working accuracy compared to a position servo? Surely there is a tut on this? > On 07/14/2015 11:12 PM, Lisandro Massera wrote: > > Could you send the configuration files? > > ---------------------------------------------------------------------- >-------- Don't Limit Your Business. Reach for the Cloud. > GigeNET's Cloud Solutions provide you with the tools and support that > you need to offload your IT needs and focus on growing your business. > Configured For All Businesses. Start Your Cloud Today. > https://www.gigenetcloud.com/ > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
