i use pla filament for making models but there is a some problem like under extruding or discontinued extruding , i attache part pictures . filament temperature tested from 190-205

also speed was 35 mm/s

cura software used for g-code preparing

what i have to do ?

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What printer? What brand of PLA? Have you measured the filament and entered that size in the slicer? What is the extrusion multiplier set at? What nozzle size and what layer height? Heated bed and what temp?

It really looks hot to me but if your temps are right then it is an ok range but something definitely is not right!

Possible small nozzle or heat break clog?

printer is self made

filament brand : Yousu

size : 1.75

same size entered in slicer

multiplier : 1.0

nozzle size : 0.4

layer height : 0.3

heated bed : yes

bed temp : 55

extrude temp : 200

also i try by 190 , 195 , 200 and 205

same result

I might try two things. Go to a .2 layer. .3 is pretty thick and may not be cooling sufficiently before the next layer prints.

Also try lowering the extrusion multiplier to .9 and see how it goes. I am not sure where Cura wants the multiplier for PLA as a starting point.