Thank you Mac. That is what I expected. I believe solid works is about $4,000 for a single user!
I found and fixed all of the issues in Derekâs model without using any extensions. You can question it if you like. Iâm not saying there isnât a place for extensions like ThomThomâs Solid Inspector or the others but often it only takes a little looking to see areas that are likely to be problematic. Thatâs what I did in this case. Using native options like X-ray and Hidden Geometry are big helps.
@Derek, another thing that helps its to view the model in Monochrome face style. Applying materials and colors to the model just helps to mask the problems. It doesnât make them easy to find.
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Now we are getting somewhere. Thanks Dave
Hi Miller
The faces have to be coplanar when Derek wants to extrude with the native extrude-tool.
The faces of that file âsick.skpâ are coplanar. They schould only to be united as I did in the file âsick.skpâ I uploaded Sick.skp (47,9 KB)
I noticed on this model that the circles cannot be extruded because they are âsmoothedâ. Did you do this or is this some other error. I generally use hide instead of smooth as it also has caused some problems
Much more than that last time I checked.
Youâre welcome.
Despite Macâs comments, most of which I find difficult to follow, while there are plugins and extensions that can aid in finding problem areas, SketchUp has native ways to help you find them and itâs worth learning how to use them. In my first post in this thread I increased the Precision in Units and used the Text tool to identify show that points in your model were not lying on the same plane. Using X-ray and Hidden Geometry were useful on the 3D model. Turning on Endpoints in the Edge style settings can be useful and so can displaying thick profile edges.
Learning to avoid creating problems in the first place is incredibly important. If your arcs had been connected at their endpoints when you drew the initial profile. Those little edges that worked to prevent the group being solid wouldnât have been created and wouldnât have needed cleaning up.
Miller softened the concentric circle on the face of the circles. While it looks like one faces, it is multiple faces. Deleting the softened edge or unsoftening it would make it possible to extrude those faces.Actually, even showing them with View>Hidden Geometry would allow you to extrude them separately. Hiding the edge of the inner circle would allow the faces to be extruded, too.
Itâs poor practice to soften edges between coplanar faces as Miller has done. If the edges arenât needed in the first place, they should be deleted. If they are needed, they should be left visible. Softening them in this case created confusion and delay.
Hi Dave
Of course all the internal issues with the crossing tubes were dead easy to see with the X-ray face style.
This is what I see looking for error in the part you highlighted. I have X-ray and edges shown and grey scale but I can find nothing. What am I doing wrong?
In my second screen shot I was pointing out the reversed faces which show as blue. They need to be corrected.
My comment about having applied that pink color to the model was partially directed at the reversed faces issue. With the color applied, the reversed faces are masked.
I use a green color for back faces that is more easily detected especially when there are only a few pixels worth on screen. On one of my computers at work shaded front faces show in a blue that is very close to the default blue back face color.
Iâm not sure why the edges of those circles got exploded but at some point before you extruded the hole and recess they did which makes the vertical edges between faces show.
Iâll try that
Derek
Is it possible to unexplode circles?
I âsmoothedâ the circles âby accidentâ - but it´s absolutely unimportant.
Sick.skp (98,9 KB)
Smoothed lines can be made visible again with the same native tool one smoothed it.
(I did it with a welding-plugin)
Send me a private mail if You have a question because I will not answer here anymore. It costs me to much time.
You can weld the edges back together with TIG-Weld from Sketchucation or Weld from the Extension Warehouse. It wonât be called a circle, just a curve.
In the case of the model at hand, you can also just soften the vertical edges around the hole and recess. There are other edges that could be softened so select all of the geometry, right click and choose Soften/Smooth. That should take care of those edges.
Thanks Dave. Last question. If edges are smoothed does not SU then refuse to extrude?
There is a little known plugin that restores Circles and Arcs to their original state rather than just Curve, canât think of the name of it off the top of my head, have it as a key shortcut. Iâll look it up when near a computer.
Yes because the faces are treated as a single surface and Push/Pull will only extrude a single face in one go. When soften is used correctly the faces arenât coplanar. Soften would be so that the collection of faces look like a curved surface. Think of drawing a circle and pulling it into a cylinder. Those vertical edges between vertices are softened.
If you display the softened edges with View>Hidden Geometry, the individual faces are shown and treated as such. You can then extrude them but only one at a time. There is the Joint Push/Pull extension that can be used to extrude multiple faces in one go but itâs not really applicable in this case.
There is no reason to soften edges between coplanar faces as Miller did in his model. If they arenât needed, they should be deleted.
ââŚthey should be deletedâ - that´s what I sayd in post #25 and did so in the 1. skp-file Derek uploaded.
You should have done it in the first file you uploaded. Then it wouldnât have created the confusion it did.
Everybody can test that I did that (#25) !
I only left the 2 little lines (16mm) which caused Dereks trouble. One must only delete the face and try to recreate it. If one deletes these little lines it´s absolutely easy, if not, a beginner will take a long time as Derek did.
I welded with Smustard. This plugin stops welding on such nearly invisible cross-lines. So one can find it.
I showed that in a video .
And now please stop posting such âalternativ factsâ.
Finding with visual is a mater or size and complexity so one can not take a simple trival case aka the sick file and then say approach is good for all cases. It you delete coplanar edges in that model is quick to see what is wrong.
The jpg is of the z model and using Fredoâs edge inspector. I tried no optimization at all and make no claim if this model is acceptable. The only point is one cannot make flat statement they can correct models in short time with just visual look at it. There are many other defects shown also I did not select inspect for all cases
The finding of issue is just the start of the corrections. Some are not independent meaning the sequence of correction can affect the final out come so, if there no reasonable way to make the the number of trails can get very large and time consuming if done manually.
I always start with a very large surface.
On the surface I draw the drawing.
Then I delete all redundant lines!
Wait a minute! I have to side with Derek. You all need to quit acting like Microsoft service reps and help him. Thereâs really no excuse for some of the arrogant answers that you have provided.
Are supposed helpers saying that in order to create a plane, you always need to draw a rectangle first and then cut it out?
What if you want to draw a curved wall? Or a curved surface on say the x,y plane?
I can see that sometimes you donât quite get the object outline closed especially if itâs a large object. But unless youâre using Sketchup all day long every day, these things happen. This program is supposed to be easy to use and things like this do not make it any easier. Iâve been designing a home with curved walls, with curved floors, and am running into the same issue all the time.
Derek, I have found that once the surface is enclosed, you can delete the triangles. Iâve also found that if I divide it in half, sometimes I can quickly find where I didnât close the surface that didnât automagically close in. Iâve also learned to rotate around the surface. Sometimes, itâll show me that I did get off plane. From that I learned that if I rotate to where I can see my surface clearly, itâll get it right the first time.

