burtoogle

Hi @Link, yes they did although I also made some other changes later that I forgot about (LOL, too many changes, not enough brain cells) and they have only just been submitted as a PR (https://github.com/Ultimaker/CuraEngine/pull/852). I think 3.5 should be OK, please open a new issue if it isn't.

Hi @AirBronto, hope that feature lives up to your expectations. If not, please create a new issue to discuss your woes/needs!

That blog is really useful but here's a little clarification. The blog says: Fan speed override. New setting to modify the fan speed of bridged areas. This setting can be found in Support settings > Fan Speed Override when support is enabled. But the use of the word 'bridged' is misleading because this feature has nothing to do with bridging. The blog should have said 'supported', i.e. skin areas that are above support. The idea here is that it is useful to be able to override the fan speed for the skin that is above support. So when I print PETG, I set this to use 100% fan and the support is much easier to remove. YMMV. And Kudos to @Keventurist for suggesting this feature in the first place!

Neither have priority, both should have an effect. The % flow values you give to Cura modify the extrusion rates written into the gcode. The M221 tells the printer to modify the commanded extrusion rates.

Exciting developments for infill aficionados, my development builds are now featuring gyroid infill. This infill pattern not only looks very cool (and, let's be honest, that's really why people want it!) but it also features uniform strength in all directions, is reasonably quick to print and doesn't shake your printer to bits whilst being printed. All in all, a welcome addition. So if you are able to run one of my development releases, please try it out. All feedback is welcome (please start a different thread for that). My development build also has some useful improvements to the spiralize mode as it now tapers the spiral top and bottom and also makes a better job of models that have flat faces (rather than continuous curves).

It's not enabled by default: "bridge_settings_enabled": { "label": "Enable Bridge Settings", "description": "Detect bridges and modify print speed, flow and fan settings while bridges are printed.", "type": "bool", "default_value": false, "settable_per_mesh": true, "settable_per_extruder": false, "settable_per_meshgroup": false }, The default value is false so you must have enabled it yourself.

The bridging code can alter the fan speed and so if you don't want it to do that you will need to fiddle with the bridging settings. A new feature (not yet available) can alter the fan speed when printing skins over support.

I am guessing that you are referring to the regions where the outer wall lines have coasted immediately before a bridge line as you can see in this picture. You can see the coasting to the left of the tops of the arched windows. This is normal when using the bridging settings. The reasoning behind the coasting is to reduce the over-extrusion that often occurs at the start of a bridge line due to the step change in extrusion rate that occurs when going from a normal wall line to a thin and/or slow wall line. The coasting looks bad in the layer view but when the model is printed it doesn't normally appear as a hole. However, if you are seeing holes due to the coasting, just reduce it (all the way to 0% if you wish). What looks like long holes above the windows is the bottom of an overhung region which you can see in the solid view. Again, I don't think what I am seeing in the layer view is wrong but I would have to print it to be sure. Do you have photos showing the problems in the printed model?

Hi @cheme, could you please post a screen shot (or photo) showing the holes, I have sliced this and cannot see any obvious problems. Also, what size did you scale the model to? It's very small, you must have scaled it up?

Anyway, here's a solution. You need to use an infill mesh to alter the infill within the central region of your nose cone. The steps are: 1 - load the nose cone model. 2 - load a cylindrical model that has the right diameter for the desired infill region and is taller than the nose cone. 3 - select the cylinder and use the menu on the left to change the mesh type to "modify settings for infill of other models". 4 - add the settings you wish to alter as shown in the picture below. 5 - set the global infill density to 0. 6 - slice, print, be happy

That isn't going to work as you wish because the model is solid. The fact that you set infill to 0% is ignored when it comes to generating the support. BTW, the tone of your posts gives the impression you're a complete dick head. Sorry to be blunt but that's how you come across. No matter, we can cope with all types here.

If you want to print layers at funny angles, you can do that too. I have a part that I print the infill using the sequence 0,-45,0,45,0,-45,0,45,...

Hi @Gerrardh, I am intrigued by your request. What difference does the speed of travel moves make in overhung regions? Could it simply be that because the moves take longer, the layer time goes up and so the part cools more (which helps the overhang performance)?

It would help hugely if you could a) attach an image showing the gap between the bottom layer and the wall and b) attach the curaproject.3mf for the print (or even the gcode file). Thanks.

Just reminding people that these releases exist and continue to be updated. https://www.dropbox.com/sh/s43vqzmi4d2bqe2/AAADdYdSu9iwcKa0Knqgurm4a?dl=0

Oops, I realise that in this example the hole is actually above support but you get the idea.

OK, what I always do in this situation is to include a skin in the model at the height where the hole goes from large to small diameter. The skin is 1 layer thick. I then put a drill through the hole when the print is finished. Here's an example where the hole is above air:

What I would do is lower the model into the build plate so that the platform bottom is, say, 5mm from the buildplate and then do some experiments to see what gaps and interface density, etc. works best. When you have found a good combo, print the whole model.

BTW, I recommend using an interface (roof) on the top of the support as it will greatly improve the quality of the underside of the platform.

Sure, but if you just want to modify the settings within the tube area you have to do a lot more work. Actually, the time difference is not a lot 3h46m rather than 3h38m. The material difference is going to be pretty insignificant also. 3d printing, it's a tradeoff (tm)

Obviously, increasing the infill density could help strengthen the tube and the regions immediately above/below it but here's some other suggestions: 1 - increase the wall count (stiffens tube and gives more area to attach to the skins above/below). 2 - increase the skin expand distances so that the skin covers the ends of the tube which will give a much stronger joint.

Could you please attach the gcodes for that part sliced with Cura and S3D and I will compare them. Thanks.

YMMV

It's the z-seam. I have fiddled with some settings and now it runs along an edge under the barrel so it should not be too visible. You can see the settings I used in this image. Hope this helps.

How much fan are you using? I wonder if it's too much and that's causing shrinkage and poor adhesion between the skin and the wall.