There's nothing ambiguous about the "dead simple" approach. I must not be explaining myself clearly here. Another try: A list of at least two objects is passed to multiCut. The first object is the "master" object. The remaining objects are "child" objects. These child o...

Multi cut is a logical impossibility because "order of operation" effects I see your point. I'm not sure the implementation really needs to be so complicated though. I was actually only hoping to find a dead simple approach: the first object in the list of objects passed to multiCut is th...

I see that @wmayer brought the multFuse function to FreeCAD about a year ago. It's great, especially because of the fuzzy Boolean logic it employs.

Is anyone aware of any specific reason why there's no multiCut analog in the code base?

Do you need to remove the edge from a technical drawing or from a render image? The most important reason I have for wanting the seams gone is that they impact my part fabrication workflow. I export DXF files (which are generated from cross sections of my 3D solid model parts). I then send these DX...

In OCC, a Sphere is: - a half circle curve -> an Edge - a revolution of the Edge by 360* -> a Shell - a "fill" of the Shell -> a Solid (the Sphere) Yeah, that's exactly what I figured was going on; the edge is a leftover from the creation of the sphere. Why does the call to OCC's sphere c...

As deepsoic said, these extra edges are created by OpenCasecade, so it would be best to as about this on either OCE or OCC forums. Yep. I'm having a look at this avenue now. My hope is that there could be some minor change to how FreeCAD calls the OCC functions to generate some of these primitives ...

Your example is a perfect example of where the simple solution is to rotate the "tool" sphere such that the seam does not intersect the other solid when you apply the cut. That's a workaround that doesn't apply in all cases though right? Drill a hole in a block by subtracting a cylinder a...

If the seam appears when the model is 3D printed, or machined (Path/CAM WB), then yes. I'd guess that no seam when Angle = 360 degrees would probably be an issue for the OCC people. Yeah that's the major concern I have here: that the seam impacts manufacturing of my parts. My other concern is that ...

In FreeCAD we can have a Sphere (or Cone or Cylinder) that is not 360 degrees. That's a nice feature! Don't you think the seam should be absent when the shape is closed though? Here's a picture of a sphere's seam after it has propagated into a cube by running a cut operation between the two solids....

Thanks guys, that's too bad to hear that it's inherent to the CAD kernel, maybe I'll dig a little deeper and talk to the opencascade folks. I'll give RefineShape a try too!