Hi Phill, Those screenshots look the same, are they duplicates? In any case, the fact that it skipped the parabolic blend entirely at that corner is not supposed to happen. I'm going to run that test again on my machines to confirm. What commit are you building on? I had to do a roll-back of some changes a few days ago, so that could be contributing to this issue.
-Rob On Sun, Jan 5, 2014 at 2:18 AM, phill carter <phill.car...@oztime.com.au>wrote: > I ran the arc-arc test after changing Y3 in lines 3 & 7 to Y2 and Y-3 in > line 6 to Y-2 to better suit the envelope of my mill. > Using 2.6 standard it ran ok, using 2.6 with arc-blend when running line > 6, it jumped to line 7 when it reached Y0 rather than Y-2. > Screenshots at https://www.dropbox.com/sh/wb05n11coih47ld/gJ6AY1Drch > Cheers, Phill > > On Sat, 4 Jan 2014 01:43:23 -0500 > Robert Ellenberg <rwe...@gmail.com> wrote: > > > I just noticed a weird bug in a recent commit on the circular arc branch > > that causes acceleration violations when pausing / stopping. I've rolled > > back the circular arc branch to a known good commit to be safe. If anyone > > has pulled from that branch in the last three days, please reset to the > > current circular-blend-arc-alpha branch, which should point to this > commit: > > > > 689e5cb185f87deba62391cd184f21f360ce2246 > > > > I'll push an update once I'm sure the bug is fixed. > > > > > > On Mon, Dec 30, 2013 at 1:20 PM, Robert Ellenberg <rwe...@gmail.com> > wrote: > > > > > > > > On Dec 30, 2013 12:24 PM, "sam sokolik" <sa...@empirescreen.com> > wrote: > > > > > > > > Could you explain your 'small gain'? from what I am seeing - you > have > > > > to slow down to do a parabolic blend (If I understand it - it is a > > > > read-ahead buster) > > > > > > > > There are paths (like steve.ngc) which would be able to keep the > speed > > > > up if there was arc-arc, arc-line blends and you can optimize the > path > > > > (depth). And yes - I know it is a lot of work. > > > > > > > > (you are doing a great job - it is very impressive how quick you got > to > > > > this point) > > > > > > > What i mean by small gain is more statistical. It seems like most > > > engraving-type g-code is made up of line segments, so the biggest > overall > > > gain is from making arc blends between lines, simply because there are > so > > > many line intersections. It is true that hitting an arc-arc or line-arc > > > blend is a lookahead buster, though, so it doesn't take much to cause > > > annoying slowdowns like in Steve.ngc. > > > > > > I'm planning on a little more hardware testing first, but if code like > > > Steve's and Julian's is common, then it looks like blends with existing > > > arcs are a must-have. Even the Stellabee code showed a little bit of > > > slowdown due to the occasional arc , though overall it's a small > effect. > > > Does anyone else have example code that shows this kind of slowdown? > > > > > > -Rob > > > > > > ------------------------------------------------------------------------------ > > Rapidly troubleshoot problems before they affect your business. Most IT > > organizations don't have a clear picture of how application performance > > affects their revenue. With AppDynamics, you get 100% visibility into > your > > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of > AppDynamics Pro! > > > http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > ------------------------------------------------------------------------------ > Rapidly troubleshoot problems before they affect your business. Most IT > organizations don't have a clear picture of how application performance > affects their revenue. With AppDynamics, you get 100% visibility into your > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics > Pro! > http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
