Salo92

Hello, I am also looking for this option to combat ringing on tall prints. Did you ever find a solution? Edit: I found it, you can add a post processing script called "ChangeAtZ" Under the Extensions tab.

Thank you! I will be sure to contact him.

Thank you for the reply but (gradual) infill isn't what I'm looking for. After playing with MANY settings and printing over 50 tests I've come to the conclusion that what I need is very specific: I need to control the line direction of the first top layer, relative to the center of the model. The bridging option over sparse infill already does exactly what I want, the algorithm just seems a little funky when deciding what direction is optimal. Having a new option to set the Top Line directions being relative to the model instead of absolute would also work. While my proposed changes sound niche, I think they could be helpful to many people. I'd try writing the code myself but I am a noob and for all talk of Cura being open source I can't find any tutorials on the subject. The user Burtoogle might have been able to help me but he's gone dark since September...

Hello! I would love to have control over the direction bridges are generated in across sparse infill (under the experimental bridging settings). Or an option to set the Top line directions relative to the center of the model (maybe with a checkbox or as [r45, r135]). Why? I have a circular model consisting of hundreds of blocks that I'm printing without infill. This makes the top of every block effectively an unsupported overhang, and using normal settings results in ugly scars where the first top layer starts. A solution is under the experimental settings where you can generate bridges across sparse infill. However sometimes the bridging algorithm decides to bridge in the optimal direction (parallel to the outline of the circle) and sometimes the bridge direction is 90 degrees in the wrong direction (see pic).

Hello! The short version: I would love an option to flip generated bridge line directions 90 degrees. Or: I would love to the option to make the Top line directions relative to the center of the model. The slightly longer version: I like to print my models without infill. It saves time, material and is more visually pleasing if the filament is transparent. I have had success with most models by modeling some strategic supports on the insides, if necessary. However my current project is a circular model made up of hundreds of tiny blocks, so I'm exploring other options. Using s3d with esun pla+ I get perfect prints even with only 1 wall, 0.15 layer height and 12 top layers. However other materials like silk PLA and petg sag too much and even when increasing the number of top layers I get a bad case of pillowing and holes. So I've gone to cura. Pretty much with just the Top skin expand distance setting (set to 1mm) I've gotten a perfect top finish (though cura brought issues like underextrusion). But I still have another visual issue to fix. The first (completey unsupported) top layer deposits blobs of plastic on the outer wall, which get pushed outward on subsequent layers, creating ugly scars (and ironically, small gaps). Before resigning myself to dozens of hours modeling in supports for this first top layer, I delved deeper into cura's dark pit of secrets. I found the experimental bridging settings. I "tricked" cura into bridging top layers over 0% infill by using an infill density of 0.1% with a concentric infill pattern and the Bridge sparse infill max density at 2%. The generated bridges only have the outer wall as anchor point but at least the line directions are generated relative to the model, unlike the Top line directions. However after some playing with the briding flow, fan etc. the ugly scars persist. At this point I feel I have exhausted the current tools that cura offers. I found this thread and wondered if you could help me. If I could flip the bridge line directions 90 degrees, I could have an actual normal bridge near the outer walls, which should capture the blobs of plastic before they get too close to the outer wall. Also it wouldn't hurt if the second and third layer bridges over sparse infill could be enabled. What should also help if I could set the Top line directions relative to the center of the model (maybe with a checkbox or as [r45, r135]). I would love a response! Nicolas