layer change artefact [Help]  

RE: layer change artefact [Help]

Try changing: Print Settings > Layers and perimeters > Seam position

The random setting might be your best bet.

Hth, Cheerio,

RE: layer change artefact [Help]

@diem

thanks.

I will try it

RE: layer change artefact [Help]

Unfortunately, the z-seam is required with FFF printing. It is formed as the nozzle is moved from one layer to the next. You can move the seam (set location to random or in corners) but it has to go somewhere. On cylindrical prints, your best bet may be aligning it on a side out of sight where you can sand and finish after printing most easily. PrusaSlicer 2.3x has features to more tightly control where it goes, but it still has to be there.

What you can do is tune your slicer settings to minimize the size of the scar. I found that calibrating my extrusion multiplier for each filament made the biggest difference. This allowed me to reduce retraction to 0.2-0.4mm, z-lift to 0.4mm or less, and completely disable wiping. You might be able to minimize the scar to a level that is acceptable. Here's the result I can get with a bit of tuning.

Your choice of filament is going to determine just how much you can do to minimize the seam.

One last possibility is to use vase mode printing which can print a single perimeter as one long, uninterrupted extrusion. It's only suited to simple prints. Perhaps you can print in multiple parts with the cylinder as a separate part printed in vase mode. The part will not be particularly strong, so this may not be a great option.