Here are my results, both pass BOP. I took a little different approach with the 3-way, I created 3 solid trunks and then hollowed them out with subtractive piping. I had a little trouble with the 3_way, there was a BOP error on an outer edge of the solid. I rotated the trunk 2 degrees and the BOP wa...

Are the pipes the macro produce following arcs or splines? They follow spline sketches. Some confusion might be the map-mode, I expected a comment about usage :) . I found that 'SectionOfRevolution' is very unique in that it creates an attachment that is perpendicular to the object normal. This all...

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Here is a new macro "Route2". It automates many tasks of creating an additive pipe. It will do all the work of creating a map-mode attachment and a basic sketch. It uses map-mode "sectionOfRevolution" so the attachment edge needs to be an arc or circle. Each Additive pipe will ha...

Got it. I'm close, now I need to use edwilliams code to select which face to use.

The goal is to select an edge and the macro will highlight the associated face. I made a simple macro so if a Body object is selected in the tree it will exit, simple enough. Start the macro and select an edge. I am attaching a file but it is just a cylinder. I'm having a problem here: for fac in fa...

The clipping plane worked, see pic. But clipping isn't easy and if I had to make a bunch if connections in a solid it would be difficult. It made me think about an advanced Selection concept where if you click in the same spot a clipping plane clips down to the next available element in the stack-up...

As you can see I am piping a path through a block. I want to continue the path with a direction change heading upward, to do this I need to select the face (arrow in pic) that's inside the block. How do I do this?

I tried wireframe, the end node on the spline.. Hmmm
Thanks

Just a thought about tracks; they are very inefficient for turning. How about making the idler/drive wheels with a couple grooves and use o-rings. Not sure what the environmental requirements are for the device, cat hair could be problem :) . The o-rings placed around each wheel might also give a me...

I want to use the macro a little more before I release it but here is one design and some pics. The tubing took me about an hour to draw and a couple hours to adjust just right, that might actually be good in terms of 3D CAD.

You can see from the side view there is a lot going on at angles.