Rippling / Ghosting on cilinders on (brand new) UM S5.

[Ishy 8]

No, this was with the fast profile for CPE the print speed is 60mm/sec.

[waldo 3]

and what is the speed for outer and inner walls?

[NBull 14]

You will not be able to compare the "fast" CPE to "fast" PLA, CPE have some overruling settings that make the "fast" CPE lock a bit like "normal" PLA.

 

Fast PLA: 
"Outer wall speed" 50 mm/s
"Inner wall speed" 55 mm/s
"Outer wall Acceleration" 2000 mm/s
"Inner Wall Acceleration" 2000 mm/s

 

Normal PLA:
"Outer wall speed" 23 mm/s

"Inner wall speed" 45 mm/s
"Outer wall Acceleration" 500 mm/s

"Inner Wall Acceleration" 1000 mm/s

 

Fast CPE:
"Outer wall speed"  35 mm/s
"Inner wall speed"  45 mm/s
"Outer wall Acceleration"  500 mm/s
"Inner Wall Acceleration"  1000 mm/s

Edited October 18, 2019 by NBull

[Ishy 8]

2 minutes ago, waldo said:

and what is the speed for outer and inner walls?

[Ishy 8]

Actually I changed the line width to .4 on that one, I'm just running one at the default 0.35 and it's looking promising.

[Ishy 8]

@waldo, the surface finish is significantly better with a .35 line width.

[Smithy 1,144]

As mentioned earlier, set all speeds and jerks to the same value and you will see a major improvement in quality and also in dimensional accuracy.

[waldo 3]

Will try it for sure

[Ishy 8]

40 minutes ago, Smithy said:

As mentioned earlier, set all speeds and jerks to the same value and you will see a major improvement in quality and also in dimensional accuracy.

Do you think this would apply to me with CPE @ 60mm/sec? Set them all to 60.

[iccherry 1]

5 hours ago, NBull said:

 

Hi, I agree that the "fast" profile is shit, and I can't really see any use for it. But to be fair there are some significant changes between normal and fast beside the layer height.

 

"Outer wall speed" goes from 23 mm/s to 50 mm/s

"Inner wall speed" goes from 45 mm/s to 55 mm/s
"Outer wall Acceleration" goes from 500 mm/s to 2000 mm/s

"Inner Wall Acceleration" goes from 1000 mm/s to 2000 mm/s

 

 

Interesting. I'm using Cura 4.3.0 on an UM3E. As I mentioned, the speeds are different, but my accelerations for both fine and fast profiles are the lower values.

[NBull 14]

19 minutes ago, Ishy said:

Do you think this would apply to me with CPE @ 60mm/sec? Set them all to 60.

 

I don't have much experience in CPE so (disclaimer 🙂)  if it's much different from other materials.

 

But in general yes, if you opt quality over speed, setting all to the same low speed will help the quality. 

I would say you should go for 40 mm/s or even 30 mm/s on all speeds.

[NBull 14]

27 minutes ago, iccherry said:

 

Interesting. I'm using Cura 4.3.0 on an UM3E. As I mentioned, the speeds are different, but my accelerations for both fine and fast profiles are the lower values.

 

 

Apparently the difference lies in the printer.
It's a long time since I used an UM3 so wasn't aware that there was a difference.

My mistake.

 

S5

 

UM3e

 

Edited October 18, 2019 by NBull