OpenSCAD to Flashprint ruins model based on number of fragments I'm trying to print a cylinder with Flashprint. Problem is, that the .stl file i created (with OpenSCAD) is totally ruined once loaded into Flashprint. With ruined I mean the round outline is now with spikes and steps everywhere. And by loaded I mean directly after loading, not even creating the .gx files. The output of OpenSCAD looks fine, also in other stl viewers I tried.

I figured out the problem occurs more when using certain number of fragments ($fn). If its very small, loading works better. But for numbers that make it acutally look like a round circle (eg 50), Flashprint is unable to load them correctly it seems.

It's obvious that its no slicing or printing problem, but simply a loading one, since the shown object (which does not look any round) also prints the way it is shown in flashprint before slicing.

Does someone know a way to load a cylinder with flashprint correctly, or do I have to switch to different software? I already installed some but am unfamiliar with the printer settings which I do not know in detail. I really though a cylinder should'nt be too complex for any 3D software.

Here is the OpenSCAD Code for Cylinder, just create .stl and load into Flashprint to reproduce the Error:

rotate_extrude($fn=70)
    translate([0, 0])
        square([20,2]);      


See also this image (tried native cylinder code, problem remains the same however):
Your image is very helpful. I think you might find that the rendering in your slicer is intentionally degraded to minimize use of system resources. The image you see may not be an accurate representation of that which would be printed.

If you wish further confirmation, consider to create the g-code from the slicer and view it in a text editor. An even better option would be to use an online g-code viewer and observe the results of the created g-code.



The image above is the first line of print for a Marvin, showing that the base curves are smooth and clean. Your cylinder should appear in a similar manner, confirming that your slicer is degrading the image.