Top layer problem with small details

[Psychometer]

I've tried the new model, but unfortunately I have the same result...

I don't know why, but the problem seems to happen always at the same layers, even if I split the model in different parts...

[horst.w]

... at the moment NO,

you have used the factory settings as known above?
If there are any changes, please attache the new factory.


H.

[horst.w]

I had a look for it.

Without details I can say a model of round about 35 x 45 x 35 mm is very small
You are using a speed of 100 mm/s with Outline-speed of 50%, that makes 50 mm/s.

First I would say, the 50 mm/s speed is the highest groundspeed you may use for this model.
Also reduce to 50 mm/s the groundspeed and set Outline to 75%
How the setting in tab Cooling > Speed overwrites are working is another question, a layer of < 15 sec, I think that are the most of them, sets the speed down to 10 %. Check off this option, you must find out the optimal setting. When this is done, you can boost the speeds in detail and also use the speed overwrites.

If you want, process 1.1 seems ok for the speed but it will be better to detect the problems when you only use one prozess. Delete it and also process 1.1.1 (dont forget the stop-start-options in Advanced!)

Tab Extruder:
Retract may be ok - it is to eliminate the extruders pressure to the filament without retracting more than 1 mm out of the nozzle. The filament is bending inside the bowden and it must become strait.

ExtraRestart is extremly to high. It will say that the extruder stops nearly a half millimeter inside the nozzle and the movement begins without extruding materials for the first 2 or 3 mm of a line.
Go to -0,05 up to -0,10 mm and try out also 0,00 mm
A Retraction-Speed of 400 mm/s may cause a vaccu inside of your nozzle, reduce it to moderate 30 mm/s
And really importend, Uncheck the Coasting-option!

To print with a layerhigh of 0,10 mm it is critical to find out issues, use 0,15 up to 0,20 mm. Printing fine is the purpose of all at the end of the day

Now have a try to see what it will effect
and please attache the new factory if there are any more questions.

H.

[Psychometer]

Sooooooo, I've made the modifications you suggested (correctly, I think) :

bulbasaur_starter_1gen_flowalistik_v2.factory

(10.6 KiB) Downloaded 163 times

The result is "awful", BUT ! The ears seems to print way better than before !
I don't know why the rest looks so bad...

Anyway, progress have been made, thanks to you

[Psychometer]

I just saw that I've not used the model you send me, but the original model.
Do you think I'll be better with your model ?

[horst.w]

The model is a mesh and not a solid. Meshes are often faulty.

I have change some settings in the factory V 3 - attached.
This concerne mostly the temperature (200°), speed (40 mm/s) , Infill ( 60%; MinLength 1,5 mm, no diaphragm). cooling (2/10; 5/75)

The messure of filament is well done with a micrometersrew or what? From this is depending the multiplier value, you must try out yourself.

PLA needs a good cooling of the object. You are using 2 fans, one for the extruder and one for the object?
PLA normally needs 190° up to 210 or 215°C , what is recommended by the vendor? Higher speed needs higher temperatures, for up to 40 mm/s it is surely sufficient to print with 200°, but you must try out. Set the 200° and press the filament with your finger through the heatbloc, so it must go without any tools, consistence smooth but not liquid. After stop pressing, melted filament must come out for 5 up to 100 cm max.

H.

[Psychometer]

Well, after all the tests I've made, I think that my nozzle is clogged. I'll try to clean it tomorrow... Anyway, thanks for your help, I'll try to print your version as soon as my printer is clean.

[Kurz009]

Insufficient cooling. Try one or more of the following suggestions:
-Print and install a new fan duct to improve cooling.
-Print multiple bulbasaurs at once in order to give each layer more time to cool and prevent the nozzle from warping layers
-Put a fan next to printer to increase air flow over part to aid in cooling.

My suggestion would be 1 and 2.

This also explains why a cube prints out alright and why pyramid shapes suffer. The nozzle is there radiating heat and warping PLA. PLA is very temperature sensitive, with a low melt point compared to other filaments such as ABS.

[Psychometer]

Finally ! I've succeded with my print, and your help

I've restarted with the default parameters from Leapfrog, then augmented the Fan Speed, slow down the print speed, and the extrusion settings, and I've got an acceptable result.

Now that I've found a good print setting, I will try to print a new fan duct.

Again, thank you for your help !