is this problem or bug or my broken hands?
is this problem or bug or my broken hands?
Gcode after 2.7.2 version contains frequent speed changes in vase mode. at version 2.7.2 gcode clean and speed don't change. At printed model all round surfaces look broken in different places like from many lines, not a perfect circle
Gcode example
G1 X171.724 Y57.806 Z96.246 E1513.84631 G1 F8399.978 G1 X172.015 Y57.216 Z96.248 E1513.87317 G1 Z96.251 X172.331 Y56.639 E1513.90004 G1 F8391.776 G1 X172.672 Y56.077 Z96.253 E1513.92688 G1 Z96.255 X173.038 Y55.53 E1513.95373 G1 F8393.277 G1 X173.427 Y55 Z96.257 E1513.98059 G1 F8397.376
RE: is this problem or bug or my broken hands?
2.7.2 gcode
G1 Z50.246 X162.348 Y42.099 E560.5582 G1 F8399.967 G1 Z50.249 X162.271 Y41.42 E560.58609 G1 Z50.251 X162.229 Y40.738 E560.61398 G1 Z50.254 X162.223 Y40.053 E560.64194 G1 Z50.256 X162.239 Y39.6 E560.66044 G1 Z50.258 X162.293 Y38.917 E560.6884 G1 Z50.261 X162.382 Y38.24 E560.71627 G1 Z50.263 X162.506 Y37.568 E560.74416 G1 Z50.266 X162.666 Y36.902 E560.77211 G1 Z50.267 X162.791 Y36.466 E560.79062 G1 Z50.270 X163.008 Y35.817 E560.81855 G1 Z50.272 X163.259 Y35.181 E560.84645 G1 Z50.275 X163.542 Y34.559 E560.87434 G1 Z50.277 X163.81 Y34.042 E560.89811 G1 Z50.279 X164.086 Y33.559 E560.92081
speed dont change so often so big
RE: is this problem or bug or my broken hands?
Without your project it’s going to be difficult to tell. Later versions can have dynamic speed setting’s enabled for example.
Please save your project file from within slicer, using file save project as, then take the 3mf file produced ZIP it up and attach it to a reply. Must be zipped or the forum won’t attach it. With a project we get the part but also all the settings so we can debug it. It’s the easiest way to figure things out.
RE: is this problem or bug or my broken hands?
Later versions can have dynamic speed setting’s enabled for example.
can you show how it looks or configurable in latest version?
RE: is this problem or bug or my broken hands?
project made in 2.8.1
RE: is this problem or bug or my broken hands?
There is probably an issue with Prusa Slicer, at least with the gcode previewer. One thing is if you turn off the dynamic speeds and select just 'Speed' on the preview then you do get a smooth speed shown.
However if you select 'Actual Speed' from the dropdown then with the same settings you get what looks like very disjointed speed estimates as you pictured. The 'Actual Speed' preview is a recent addition that was not available in earlier versions. I suspect it still has issues and needs tweaking. Its probably using a whole bunch of settings to try and work that preview option out, even if they are turned off, like the machine limits under Printer settings even though you have them set to ignore. Or making some other assumptions.
Changing things like slice resolution, arc fitting to on/off, gcode resolution etc moves the areas on actual speed around so I think its trying to estimate based on gcode segment size maybe. Also I think the layer times being so short due to the fast speeds are causing issues. If you scale the part in X and Y to get a longer layer time the estimated 'Actual Speed' becomes smoother with not as many changes. The larger you go, with a longer layer time the more the estimate smooths out.