Adjusting parameters to get uniform flow rate
 
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forde
(@forde)
Membre
Adjusting parameters to get uniform flow rate

Hi! 

I'm new to the Prusa software, so I'm trying different settings to get the best quality for printing this dice valve cap. I've been trying to figure out why it has a variation in the flow rate, as in the picture we can see at least two layers been with a different flow rate (the light blue, around the 12th layer) and also next to the top layer (the green ones, almost on the surface).

I've tried using some modifiers, changing infill, perimeters and horizontal shell settings but this was the best quality I could get. Is it possible to get better than this?

As I'm new to software, I may have missed some point, so would love to get any tips or explanations to learn more about it.

I'm attaching the 3MF project file zipped if it helps: dice_valve_6mm_wo_modifiers.zip

Appreciate any suggestions!

Publié : 28/09/2024 4:22 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Adjusting parameters to get uniform flow rate

So many things wrong with your settings.  For a start the bottoms of your holes for the top (the 6) 2 of them start printing in mid-air.  The minimum amount of infill % with your chosen pattern is 25%.  Also 1 top layer.  Good luck with that.  

The biggest thing affecting the flow is the cooling setting on your filament.  Everyone always misses that till its pointed out to them.  Slow down if layer time is below x.  

Anyway attached should be an example project with a more even flow rate.  Bunch of changes.  Including turning off thick bridges, changing bridge flow rate from 0.95 to 1 to make it the same as other extrusion.  Set speeds to be the same for everything.  Classic perimeter generator as if you use arachne that can sometimes effect flow rate as it varies the width.  For this one though you can probably put it back to Arachne.

 

Publié : 29/09/2024 12:37 am
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