Why is my 3D printer over extruding when I have set the flow rate very low
First of all: Can you tell us, what kind of printer do you use and which material? Please give us some pictures of some prints as well.. Also the type of the Extruder setup is relevant. Is it a Bowden or Direct Driven extruder?

For an FDM machine like the Prusa styled printers with PLA:


Flow of 5&nbsp;% is totally wrong, normally PLA should be run between 90&nbsp;% and 105&nbsp;% flawlessly. The problem is elsewhere but not with the Flow settings, nor the Temp is the faulty one.


Temp between 185&nbsp;°C and 210&nbsp;°C should be fine for most PLAs
Did you set up your printer correct in Cura (Preferences -> Printers -> Machine Settings)? Material Diameter, Nozzle size and G-Code flavour are correct?



If you give us some more information, I will be glad to get this solved.