Additive pipe. You could do the lip and the wall and even a bit of the floor all in one pipe. Then the floor is a Pad.

T-joins and crossings are not allowed in sketches that are used for padding.
The point from the OP is, that it throws no error.

That's correct, throws no error, does not hide the Pad, isn't detected by isTouched() and makes some weird model view that should not show.
Thanks

This is what I use to deal with this issue, a macro. I will normally just model away and then if I get to a point where I need to edit something early I run this macro, I make my changes and close the macro. I could also use it all the time but I'm too lazy, I just use it when I need to. If you want...

Can you click on the missing face or around it and get it to highlight?

New model, Sketch a rectangle and Pad it , open the sketch once again and add an intersecting rectangle (PIc left). What Happens (Pic right): 1) this weird looking thing with plates top and bottom. 2) doesn't flag the Pad with the exclamation mark, it does on older versions and it should do it here....

I'm up to version 1-4, I will need to test this for awhile. I updated the macro with some visual additions that I really like. By using the "isTouched()" function while in Sketcher I can decide what to do if the sketch isn't valid (or in progress). You can see in the tree, if the sketch is...

Thought I would post a link to the macro because it's in another post.
viewtopic.php?p=743735#p743735

I updated the code, made a couple changes to MapMode, Shapebinder and colors.

OK, I most always work in PartDesign. When I select what plane to attach to I get the correct response, I'm happy with how that works. :) So as long as the user stays in PartDesign and doesn't manually open Sketcher , all is good. I still think the idea of an unattached Sketch is odd or poor managem...

I know there are many things to consider but "That's broken" There is no reason not to attach the sketch. If I select the face of an object and start a new sketch it works fine. This is what I wrote about prior, the App. is not doing what is should do and users can make sketches with no su...

This is what i mean with selected planes. It doses not mean, that is a Origin plane. Plane as geometrical "plane". Agreed. As a test; From PartDesign I manually changed to Sketcher, clicked new sketch and I get a pop-up asking what plane to use, I click XYPlane and the sketch starts. I dr...