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Different speed at different high


nrgful
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Posted · Different speed at different high

Hello,

I was searching around the net for an answer, but I did not find, so, excuse me if my question is regular one and already discussed.

I am trying to print conus like object and trying do set the proper feed rate for my pritner. However, I found that at the lower and wider part of the conus my printer is printing faster and underextruding is observed as a result. On the other side, upper and narrower part of the conus is printed slower, and the print quality is pretty different and better. Why my feed rate is not the same and print speed is not the same for different object diameters? Shouldn't it be the same for all the object parts? I am not talking about different elemens speeds in the slicer setting, for example inner and outer perimeter. I am talking about different overall speed regardless of the object component speeds. Wider diameter, higher speed. Small diameter, lower speed.

Thank you in advance.

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    Posted · Different speed at different high

    Sorry just reread and you lower & fatter, so it is thinner at the top! You will have a setting set for minimum layer time. As you get closer to the top this will automatically lower the print speed - which you need otherwise the layer print time will be too small and the layer you are printing will be printed on the previous layer which will still be soft.

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    Posted · Different speed at different high

    It sounds to me like you are over powering your hot end. Try bumping the temp 5c or so. When the print is slowed down the hot end has more time to melt the incoming filament, but at higher speeds it cannot. You might also try Post Processing ->Modify G-code ->TweekAtZ>

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