Hi Ilmar,
How many Outline/Perimeter shells did you print? Try decrease it to 2 if you didn’t already (this will increase the “gap”).
It seems like gap is too small for the nozzle and software to understand and to fill it.
Another solution: Change your model, decrease the diameter of outer cylinder (per gap distance)
Hi,
Thank you for your advise.
1. Outline/Perimeter shells -> I tried 2, 3, 4.
4 shells demonstrated best result on printed part.
2. I can’t perform any modifications on this model 
Hi hahanfry,
A have attached the render picture with original model topology (have a look please).
Strange situation then. If perimeter shells doesn’t solve the problem, then the model itself might have a gap in it - but that would even stranger as I can see there is infill visible through the gap.
Do you have a chance to upload the model for inspection?
Thank you for your comment.
I have attached the picture with original mesh topology. I just want to print solid cylinders and the slicer preview is not promising good result
Thank you!
I can find this parameter by activating FlashPrint expert mode in the section Advanced -> Extrusion ratio.
Is this correct? It will probably all dimensions of the model that is not acceptable…
I’ve just checked the model in Rhino, it says model has no errors.
I also checked the cross-section on the models. I think this is purely slicing issue…
Hi. The drawing seems to be ok. Probably the diameter is too small for our slicer.
Okay,
So here are the measurements
inner hole’s diameter - 1.0 mm
outer cylinder diam. - 4.50 mm
Wall thickness = (4.5 - 1) / 2 = 1.75 mm
What is the nozzle size and extrusion width?
Hello,
3D printer model - Flashforge finder
Path width - 0.4 mm (I checked in FlashPrint expert mode).
Nozzle diam. - 0.4 mm ( I have found it in user manual)
Given that the Flashprint slicer is not filling this area in on the preview, then I’d say it is slicer related and to try a different slicer. Especially since you also tweaked all the settings that could potentially cause this and still doesn’t print it or render the preview correctly. I use “Slic3r” on my FFCP and have had very good results for the last 3 years…
Try changing the path width to .39, .38 etc. each time checking the slice and see if it changes. Also try if you didn’t already, 1 perimeter.
On occasions where I have seen this it is because the post isn’t big enough in diameter and/or the wall isn’t a multiple of the extrusion (path) width so it leaves a gap.
One thing would be to try in another slicer to see what the result is.
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Slicer indeed! Try different one.
But what happens when you use 2 perimeter shells?
Or is object in a picture with 2 already? Maybe the cylinder is so small that only 2 shells fits in it, no matter that you set 4 or 3 of them?
Everything is clear now:
2 shells at both sides = 2 x 2 x 0.4 = 1.6; and 1.75 - 1.6 = 0.15 = the gap is too narrow for 0.4 nozzle.
Simplify3D might handle it (not sure however).
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Hello,
I have had the same problem with some solid prints. I have not been able to fix that, but I did get a better result when I printed with a percentage of fill other than 100%.
RDS2
Thank you!
I have tried this as well. It is better, but still not ideal…
I never tried, I think FlashForge finder is locked and compatible with Flashprint software only. Sliced files has *.gx extension.
Anyway, thank you! I will try to google if there is any possibility to use other third party software!
Wirlybird,
Thank you for your advises. This forum is really helpful!
Thank you for all your support and useful advises!
After a number of trying’s, finally, I got some decent result!
Here is the list of adjustments I made:
1) Infill 100%;
2) Outline/Perimeter shells - 3;
3) In the FlashPrint expert mode I changed the Extrusion ratio from 109% to 115% .
This forum is very helpful!
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