How about running the actual machine empty for one cycle? Nicklas Karlsson
On Wed, 15 Oct 2014 21:07:28 +1100 "Frank Tkalcevic" <fr...@franksworkshop.com.au> wrote: > I was so annoyed that the estimates for my 3d printing jobs were so far off > (estimated 2 hours, took 8) that I modified the axis code. It looks at the > Velocity and acceleration of each axis and tries to calculate a more > accurate time. It only looks at moves - no G64 or probing. It isn't > perfect, but much closer. > > The attached file is the changes - a new gcode_properties function and some > additional routines. > > My version of linuxcnc is pretty old, so a diff or patch wouldn't be useful. > > Frank > > > > > > > -----Original Message----- > > From: Sebastian Kuzminsky [mailto:s...@highlab.com] > > Sent: Thursday, 9 October 2014 1:45 AM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Thoughts on a Python script to calculate > estimated > > run time, for G code and my first hacked sub routine > > > > On 10/8/14 9:01 AM, Schooner wrote: > > > First Q > > > > > > From Axis > > > > > > File > Properties > > > > > > Brings up the properties of the currently loaded gcode including > > > estimated run time > > > > > > Always underestimates as it takes no account of time used in > > > acceleration and deceleration to/from the required Feed speed > > > > Yep, the estimate is off. It's based on the gcode only, and does not take > into > > account important things like machine acceleration and spindle > acceleration > > as you say, as well as things like tolerance (G64 P) and probing. > > > > The only way I can think of to improve the estimate would be to run the > > motion controller, disconnected from actual motion, and see how long the > > motion actually takes. That's probably possible, but it's not a small > change to > > design & implement. > > > > > > -- > > Sebastian Kuzminsky > > > > > ---------------------------------------------------------------------------- > -- > > Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve > > PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you > > Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to > > PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer > > http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.cl > > ktrk > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://p.sf.net/sfu/Zoho _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
