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
