Sorry to drag this up from the past however our Google overlords brought me here. I cannot figure out why this is happening, especially since everything I am finding still matches the 2 year old info above.
I'm having an issue where some prints start out at over 500% while others will start at over 900%. If I quickly go to the Tune menu and change it to 100% as it starts clearing the nozzle it will print fine. If I back out of the menu to the main screen all heck breaks loose as it jumps back up to the higher 500-900% print speed. if I don't go into the menu to change it in the first place the extruder hotend will start flying all over the plate. Not all files print like this, it happens on some I've made in Fusion360 and some I've downloaded.
I've been using the 'Super Quality' preset with adhesion changed to brim(when appropriate) on an Ender-3 V2.
Edit - I have removed the printer from Cura and added it back just to make sure there was no sneaky custom gcode with the same results while trying to print.
Thanks!
Edited by photoDad
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gr5 2,224
no - there is no % control on the 20 or so speeds.
If the print speed in cura is 60mm/sec and you slow down to 50% it is exactly the same as if the print speed had been 30mm/sec in Cura. Sort of. Not exactly because...
There are many print speeds in Cura. From memory, 7 printing speeds, 2 travel speeds, and even retraction speeds.
If you lower ALL the speeds in Cura including retraction speed... ALL of them - by 60% then that is the same as setting the print speed to 60% in the TUNE menu of your printer (regardless who makes the printer).
In reality you shouldn't have to lower all the speeds. Usually you get better quality with fast travel speeds (less stinging, less bumps, less underextrusion after a travel).
What is the symptom where you like your prints better when you print slower?
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