Ironically I think that was one of the issues with Mach3's time estimates. It ignored some of the effects of acceleration values. My memory is coming back. What really threw off Mach3 was short segments. As in 3d printing, or cutting a lot of splined curves, or 3d contour cutting. The time estimates would then be way off. I did a bunch of Mach3 testing years ago.
It would be interesting to see if a Linuxcnc simulator setup could be done with increased velocities and accelerations to simulate a machining session running at 10x or 100x speed. Dave On 4/23/2016 12:02 PM, Philipp Burch wrote: > Hi Dave! > > On 23.04.2016 17:50, Dave Cole wrote: >> That is more usually a function of the Cam software that I am used to using. > In my opinion, effects like limited acceleration should not be something > the CAM has to care for. After all, we have G code as a (ideally) > machine independent format, so it should not be necessary to tell the > CAM software such limits. After all, LinuxCNC is already completely > configured for the machine in question, so it could estimate the runtime > almost exactly. > I first thought about the simulation configurations, but these are most > likely still linked to the wallclock. So it would be possible to > simulate the tool path, but only in real time, which makes it less > useful. But maybe such a feature is already present or in development? > > Regards, > Philipp > >> I don't know if Mach3 is all that reliable when it comes to accurate >> numbers for run time. >> I recall that being a problem actually in some situations. >> >> There is some discussion of that on the web. >> https://www.machsupport.com/forum/index.php?topic=18557.0 >> There are several other links available. >> >> Dave >> >> >> On 4/23/2016 4:19 AM, Danny Miller wrote: >>> As I've said before, I'm used to Mach3. In this case, Mach3 allowed me >>> to click "Simulate Toolpath" and gave a 100% accurate figure for the >>> file's runtime. It actually simulated with the same path that would >>> execute the code, just without waiting to step anything out, so it takes >>> into account the max speed & accelerations of the machine. It sometimes >>> took a minute or 2 to evaluate large 3D files that took hours to run. >>> >>> This is super-important for tuning. I obsessed a lot about the best >>> speeds & accelerations and it paid off. Also kept me from getting into >>> trouble with a job that would have taken 8 hrs. >>> >>> I thought "Properties" would do that, but I was wrong. That just takes >>> distance, divides by feedrate, and adds them up. This is not remotely >>> valid for fine 3D carving, it requires so much acceleration that >>> feedrate is almost irrelevant. And I'd like to see what effect path >>> tolerance has. I'm not going to sit over the machine and run it with a >>> stopwatch. I tweak these parameters often. >>> >>> Is there a way to do this? >>> >>> Danny >>> >>> ------------------------------------------------------------------------------ >>> Find and fix application performance issues faster with Applications Manager >>> Applications Manager provides deep performance insights into multiple tiers >>> of >>> your business applications. It resolves application problems quickly and >>> reduces your MTTR. Get your free trial! >>> https://ad.doubleclick.net/ddm/clk/302982198;130105516;z >>> _______________________________________________ >>> Emc-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> ------------------------------------------------------------------------------ >> Find and fix application performance issues faster with Applications Manager >> Applications Manager provides deep performance insights into multiple tiers >> of >> your business applications. It resolves application problems quickly and >> reduces your MTTR. Get your free trial! >> https://ad.doubleclick.net/ddm/clk/302982198;130105516;z >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > > ------------------------------------------------------------------------------ > Find and fix application performance issues faster with Applications Manager > Applications Manager provides deep performance insights into multiple tiers of > your business applications. It resolves application problems quickly and > reduces your MTTR. Get your free trial! > https://ad.doubleclick.net/ddm/clk/302982198;130105516;z > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
