Problem with Spiralize Contour

Kaji

<font face="Arial, Verdana">I have printed couple of vases with Spiralize Contour and noticed that printing is almost perfect, but there is stripe that rotates around vase from bottom to top.</font>

First I though there was something wrong on my printer, but I noticed when closely inspected preview screen that stripe can been seen on preview also, so it must be generated by CuraEngine.

Please see pictures:

<font face="Arial, Verdana">http://kaji.fi/stripe_in_print.jpg</span></font><br/></div><div><font face="Arial, Verdana">http://kaji.fi/stripe_in_preview.png</span><br/></font></div><div><font face="Arial, Verdana">
</font>

<font face="Arial, Verdana">Is there something I could try?</font>

Repetier

Only solution I know is using Slic3r for Vases at the moment. I hope that the problem will be solved when next release come, but we are not the slicer developers. Had the same problem in Vase mode as well. First I hoped host preview had an error bit it was in the gcode :-(

Kaji

Yes thought so too. Hopefully it will be fixed at some point. Maybe I contact directly CuraEngine, but I think this is known problem.

This doesn't happen in all vase prints..

Kaji

<font face="Arial, Verdana">Humm... I sliced this with Slic3r and I got same stripe...</font>

Kaji

<font face="Arial, Verdana">Ah.. it was not finnished yet and what was on screen was from previous slicing.</font>

There is some problems though..

Repetier

That is ok I think. This sometimes happen with the with computation based on layer height with some short segments where you get high delta e values relative to length from rounding. At least it looks like this visual problem.

Kaji

I updated CuraEngine to latest 15.02.1 and problem was solved! I could not use Slic3r as exporting gcode would take forever to finish.

Repetier

Good information. So I will update curaengine for next release.

With slic3r disable "Avoid crossing perimeters". That is usually the parameter slowing things considerable.

Kaji

Thank you for slic3r tip.

It seems that new CuraEngine makes infill before perimeters and I don't like that much, but I noticed that there will be option in repetier fork of CuraEngine for that, but I don't have enough knowledge to compile CuraEngine from sources.

Hopefully new version of the repetier host will be released soon with a new CuraEngine!

Repetier

New curaengine has Infill before perimeter as option. New host has a setting to change that option!

Kaji

<font face="Arial, Verdana">Looks like there is still some problem with even latest CuraEngine..</font>

<font face="Arial, Verdana">http://kaji.fi/stripe_in_preview_2.png</span></font><br/></div><div><font face="Arial, Verdana">http://kaji.fi/stripe_in_print_2.jpg</span><br/></font></div>