johnse

I gave you what I believe to be the algorithm. Let me state it a different way, and also answer your question about line colors. the yellow wall lines are the “inner” walls. The red are the skin, “outer“ walls. It prints all of the inner walls first. Then it prints all the outer walls. The Outer before Inner simply swaps the order of these operations.

I don’t have an answer for you, but the pics are showing now.

you can get the latest (2019 that replaces both 2015 and 2017) here: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads this note is included on that support page: From another thread, it seems like some installer programs check for the existence of 2015 incorrectly and thus fail when that specific redist is not found even though the later versions fully replace it.

Be sure to reinstall the later versions after you get Cura working or you may have newer programs failing (like the ones that caused those later versions to be installed).

Yes. I have hit this condition many times. Very annoying.

I am not sure what you mean by the “buildup of filament”? If you are seeing drooping lines of filament for the first few layers of the bridge, you may need to enable supports.

I believe this is because they print the inner walls first and then the outer walls...or thr reverse if you select that setting. If you had 3 walls I think you’d see it do the two inner walls on each numbered shape, and then the outer walls.

In order to get any reasonable help with this it would be best to post a 3mf project file (in Cura, with the model loaded and settings like you are ready to print, use File.Save (not Export) to save the file).

It is important to reinstall the later versions. What Microsoft means by “compatible” is that they are backwards compatible. This means that the classes and functions that existed in the older versions still work the same way and thus older programs can work with them. However, a newer program can use things added in the later versions. If a program does not use anything newer, you’re OK. But if it does, it will crash when it tries to use that functionality. You may have researched a lot about it...I’ve been programming in Windows since V3.0, with over 10 years of that being at Microsoft.

None of the pictures are showing up for me.

If you do what @mrtinfy suggests you will surely break many other programs that rely on those newer versions of the VC redistributables. The 2017 version is a directly compatible replacement for 2015. But this information might give the developers some hints for what is going wrong. See this thread: https://developercommunity.visualstudio.com/content/problem/14701/visual-c-redistributable-for-visual-studio-2015-ca.html It looks like some installers may check for the redist version incorrectly.

Your posts went through. I just don’t have an answer for you.

Looking at the diamond-shapedmarking on the filament, I think the tension is OK. Gouging the filament like that is likely either that you had a nozzle jam so the filament could not advance and got ground down, or your model had too many retractions in a short area of filament.

It is going to cross that area twice every layer...no way to avoid it. try different retraction settings, printing slower/cooler, to help minimize stringing.

Is there a small down-arrow next to the “print to file” button? Press the arrow and see if print to USB is an option.

Listen to @gr5. You’re leveled too far from the bed. You need that first layer to squish more

If you are using other people’s designs, that is a good way of getting around problems. You can install the Mesh Tools Cura plug-in from the Cura marketplace and it will warn you of these kinds of errors. if you start making your own designs, I would recommend Fusion 360. The personal use license is free and it is a good CAD program with lots of tutorials and a good community. Some other programs, like Sketchup and Blender, make it very easy to get problematic designs.

Depending on how that web site constructs the geometry, I’m not surprised with there being problems. Fonts are designed primarily for rendering on a 2D surface where overlapping shapes do not matter. So the loops likely are defined by curves that cross through the stem. Naively extruding that shape into 3D leaves an area that intersects with itself, causing internal geometry which causes the slicer to confuse what is inside vs outside the solid.

Glad to help.

To just make these printable, you can use service.netfabb.com (free with registration). What program are you using to generate the letter models? To understand how to create better models in the first place, we need to know how you made them.

I’m glad my comments helped.

Those are (mostly) not “stringing”, but antennae. Caused by totally different things. Those offshoots are caused by a drop of ooze building up during the move between the columns. When the nozzle gets to the next section, the drop hits the old layer and deposits there. When it comes to that spot again next layer, the drop deposits on the previous blob. Hence the outward and upward growth of the antenna. Stringing is where the material does not leave the prior part cleanly, and a thin string connects between two sections. You see some of those between the part and antennae. Try fine tuning retraction. Too much can be as bad as too little since you don’t want to suck air up into the melt reservoir.

Can you post a .3mf file for these parts (File Save, not Export). this will wrap up the part and all the settings so folks can see what might be wrong. Also, what printer, and what material are you using?

The prime tower is sometimes useful. I do not usually use it with PLA. Sometimes will with nylon. That the prime tower broke may indicate that your layer bonding is low...possibly printing too cold. try some with and without and see if you find enough difference.

The first is typical if a section breaks away. All further layers printed over that area are printing on air, producing spaghetti or birds nests... the second looks about normal for PVA.