Lars Andersson wrote: >> -----Original Message----- >> From: Jon Elson [mailto:[email protected]] >> Sent: den 7 februari 2012 05:51 >> To: Enhanced Machine Controller (EMC) >> Subject: Re: [Emc-users] AXIS default jog speed on A-axis >> >> Better yet, in HAL you can compute vector velocity of the X & Y axes, >> and then multiply by the S word. This way, the extruder will >> accelerate >> and decelerate with the movement of stage. You might need some >> additional >> trickery to manage the pull-back of the extruder when S is set to zero >> (extruder off). >> >> Jon >> > > That sounds like a nice method. I will try to implement that. Setting S to > zero to stop material flow is good enough, seems that the dreaded ooze in my > case starts a few seconds after the extruder is stopped. (Thermal expansion?) > If I take care to move out of the way before that it seems to be okay. > I might suggest crating a custom HAL component to do the S * factor * sqrt(X^2 + Y^2) just to cut down on all the procedure calls to do it in separate components. You could put the pullback logic in there too, to detect S going to zero.
Jon ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
