Dynomotion Forum

Hi Tom, thank you for you quick reply, but I think I have to double check my installation. After your reply, I tried to replace GCodeInterpreter.dll with the patched one directly downloaded from your link and the problem disappeared. It is weird because they have very close timestamp (1 minute diffe...

Hi Tom, I found a strange problem with trajectory planner. I'm using 4.35f with Trajectory planner patch (we discussed of a smoothing problem and the patch on march 2021) and occasionally the interpreter stops with "ERROR - Invalid Buffer Times in Trajectory Planner". It is something due to trajecto...

Hi Tom, sorry for the late reply, but yesterday was holiday here in Italy. BTW I made a few test on Friday and I can confirm that the problem is consistent, but it depends on the actual machine coordinates you run it on. I stripped all unnecessary motion from the file and wandered around a bit to ca...

Hi Tom, the code I sent is just a part that reproduces the problem. I left also the initial holes because, depite of the same path (apart from coordinates), it works as it should. I repeated the test several times with consistent results. I'll try to isolate the minimum relevant section. M8 and M9 a...

Hi Tom, I found a strange behaviour with a simple g-code file (see attachment) Basically this file is a simple hole chamfer path replicated 6 times in a matrix fashion. The strange thing is that in a random fashion, according to the coordinates used in file, the interpreted goes past the G0 statemen...

Hi Tom, thanks again for the clarification. It would be helpful to know what you are trying to do. Sure... I'm so catched to solve the problem that I forgot to describe the application. I wrote an interesting friction compensator that behaves very well with low speeds and accelerations. Unfortunatel...

Hi Tom, thank you for your quick response. Clear and precise as always. I got the passage I was missing: the axis coefficients are interpolation coefficients of the global linear segment as function of parametric coordinate p. For circular movements I suppose something similar, but data of the circl...

Hi Tom, is there any way to retrieve axis commanded acceleration during G-code execution (and in general in real time)? As for my understanding it should be possible to derive it from the trip state. Correct if I'm wrong, it should be pcoeff->b*2.0 during trapezoidal motion. Unfortunately I was not ...

Hi Tom, I added 4th decimal digit to my code and now it is very smooth without any dicontinuity even in limited velocity segments. You were right about truncation/rounding error relative to decimal digits in g-code. It was something that we would experiment because we use 0.5um glass scales, but now...

Well now it's a lot smoother. No audible noise even if I run the test without KLP smoothing. I also acquired motion data as usual and I report the results, in terms of feedrate in the plot attached (In the meanwhile I discovered how to attach pictures inline :D ). Test_Update.png As you can see the ...