On Sunday 03 May 2015 04:18:45 matic bie wrote: > Thank you,Gene and others:I have read the docs you said.My question > comes from my reading the codes of "tp" and "tc"part.In the TC_STRUCT, > every segment is defined from 0 to target?That's the segment i > mentioned.
Ahh, I see. It will help if you mentally substitute the "0" with "where it is at", its already there from the previous move so you don't have to restate it for the next move, so you supply only the "target" to move to, and bear in mind the target can be selected as either an absolute location, or a move relative to where it is at. Also controlled by a G-code, its in the user manual. The machine doesn't come to a full stop (generally, but you can command it to) but that is how I think about it. This generally is how one would do a "step & repeat" operation series, you position the machine to the start of the each series in absolute mode, switch to relative, and call the same subroutine each time, returning to the absolute mode to set the step position of the next repeat. If you look at some of our code, you will often see a large surplus of precision stated where .001" is close enough but we'll write .0010000000, but that is how the accumulation of rounding errors is best handled. Works for me anyway. OTOH, I'm not carving new lenses for the hubble either. :) I hope this helps. Please trim your posts as I have done here, and we discourage "top" posting as it makes much more sense when reading it if its in the same sequence as if we were face to face having a conversation. 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> ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
