Nozzle/extruder stops quickly when moving from inner to outer perimeter and during infill direction changes
 
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Nozzle/extruder stops quickly when moving from inner to outer perimeter and during infill direction changes  

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davorin
(@davorin)
Trusted Member
Nozzle/extruder stops quickly when moving from inner to outer perimeter and during infill direction changes

Good morning

 

Noticed this lately when I printed some round parts.....when the nozzle printed the inner part of a perimeter and then moves to the outer one, the nozzle and extruder stop quickly (around 0.2sec) and continue then.....

 

Also during an infill when the nozzle changes direction I see that the extruder stops quickly and continues then...never saw this behaviour on my other printer fed by S3D...the extruder runs continuously during an infill and when doing perimeters...

 

Is there a printer setting in PS which affects the quick stopping when doing perimeters/infills?

 

With PLA this causes blobs to be seen on the outside...and with ASA-X a hole is visible where the perimeter outline changes happens...

 

thanks in advance

richard

 

 

Ender-5 Plus

with Micro Swiss Direct Drive, BTT SKR v1.3 and TMC2208<br>Ender-3 with Micro Swiss Direct Drive, E3 mini with TMC2208<br>Qidi i-Mate S

Posted : 05/08/2021 5:30 am
davorin
(@davorin)
Trusted Member
Topic starter answered:
Re: Nozzle/extruder stops quickly when moving from inner to outer perimeter

Afternoon (o;

 

Tested now with Simplify3D and looks I found the difference...

 

When switching from inner to outer wall, Simplify3D appends the new feedrate to the move command:

G92 E0.0000G1 X152.971 Y150.782 E0.0572 F630

 

Prusa Slicer instead adds a separate command for the new feedrate, therefore slowing down Marlin:

;TYPE:External perimeter
G1 F1200.000
G1 X152.988 Y150.800 E9.29498

 

Hmm..would that mean to file an issue or a feature request?

 

Ender-5 Plus

with Micro Swiss Direct Drive, BTT SKR v1.3 and TMC2208<br>Ender-3 with Micro Swiss Direct Drive, E3 mini with TMC2208<br>Qidi i-Mate S

Posted : 08/08/2021 1:05 pm
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