Hi. I often get holes filliing in when 3d printing. Solid inspector2 is a great tool and often works. However often it doesn’t, and whatever I do I just can’t get rid of the filling.
I have tried makeing model and using sI on every step, it just seems to suddenly fail everything. I have alos tried fix it to remove the internal face edges, but that still does not fix it.
Currently I am trying to make a bottle top, with a spiral, but it just will not have it.
Any help would be very much appreciated as it is getting very frustrating.
I also have a model that passes on SI but still this fills in on the model.
front feeder5.skp (4.2 MB)
hi
to be honest I have tried so many different things I have lost count. This ine is the one I am working on that still has many SI problems, but I cant work out how to fix them. Shame I didnt save the one tha thad no errors but still fileed.
Your model is full of a lot of bad geometry. Between reversed faces and internal faces the object is not going to be solid nor will it print correctly. Frankly I think starting over will be easier than repairing all the bad geometry. The first thing I would suggest is setting the model units to meters and model this thing as if it’s 46 meters in diameter. That will make it easier to avoid issues with holes in surfaces and that sort of thing. You’ll also be able to create smoother curves and circles.
Which version of SketchUp are you using? Your forum profile is confusing. It says you SketchUp for Web (Free Only) but the version you list is 2019 Desktop. Relaying the correct information in your profile is important because it lets us know what tools you have available. Are you using a cr acked version of SketchUp 2019?
I redid your object following the instructions I gave you. You can see some of the internal faces and the reversed faces in your with a section cut. Compare it to mine on the right.
OMG, that is amazing what you have done.
OK so plainly I am creating these incorectly, I do not know how to remove those in side spirals, I tried using K and deleting them but they just delect the complete circles.
Here is how I made this, you tell me where I go wrong, and yes I have started from scratch several times.
First I made the spiral, using folow me method to make the full curcles.
Then I made the solid outside, and used push to enter into the spiral.
Then I intersected faces with model.
At this point there are loads of SI errors.
So how could I have done it differently. And I would be interested to know how you fixed it on yours. I am guessing attaching the fixed one is not an option.
One option would be to skip this step. Instead make the spiral a solid component or group and make the cylinder a solid component or group. The slicer should treat them as one object.
Part of your problem is the scale at which you are working. Like I wrote and showed, modeling as if meters are millimeters gets around a lot of problems.
Again, what version of SketchUp are you using? If you tell us which version you are actually using, we can give you a better idea of how to do what you need to do. Different tools are available.
Hi.
OK thank you for your help with this. I have now started again and donr what you said and made the spiral a component. It looks much nicer and passes all the SI tests. But alas still fills in.
I am using 2019. front feeder7.stl (114.3 KB)
You still have all those exposed blue back faces. The face orientation is critical for the slicer to know which side of the face is air and which is the print media.
Ah ok, so blue means bad, got it. And yet making all them white has worked.
Thank you so much for the help.
On another note, I us at home 2017 desktop, but on the forum there was not an option for that vertion so I put down web free, which I assumed was the closest to mine.
This one I am borrowing is much better though. When I get home I will try it out on mine with all the advice I have learned.
I think one thing I have been doing wrong is not making components, when I cnc I use components all the time but on 3d I thought you couldn’t use them, perhaps it was an issue in the past.
