When extruding geometry using the PushPull tool, the face on the other side is not removed in SketchUp 2026. The same model works correctly in earlier versions. I am attaching the model Pushpull bug.skp Pushpull bug.skp (5.5 MB)

[image] damren: In version 2026, there’s no way to delete it. It works for me in 2026 if I create the slab in an empty model. [image] damren: Did you check the file I attached to my first message in version 2026? I had not until just now. Yes I can see there is something strange with …

[image] DanRathbun: Yes I can see there is something strange with your file, I agree with Dan, the PP fails on that corner but not on others or newly drawn geometry. So the question is what/how was the model created.

What I noticed that was weird, was that when PP’ing that face the remaining face looked to be non-coplanar. I.e., it looked like SketchUp was indicating it was triangulated. I tested the remaining face with the bottom face of the slab, and f1.coplanar_with?(slab_face) returned true. I don’t know. M…

I have been looking at the file as well, and I can recreate the same geometry in the same model, and my version works ok. I tried flattening the top and bottom parts to be on the same plane, didn’t help. Also set the units to 0.0000000000000 (or whatever the highest is), and didn’t see any differen…

This works fine for me up to a certain point. Then, one face from the set doesn’t get removed. I caught this moment, copied the geometry, and saved it in a new model for testing. There are also no problems with coloring along the axes of the edges: [2025-10-25_09-24-40]

I did a test where I scaled the object up to 1000000X. That then showed the front edge to be not 16000000.000000. Instead it was 15999999.999999. Moving the edge to be at 16000000.000000 and scaling back down by 1000000X, let the push pull work ok. Here’s that version. Pushpull bug rescaled.skp (5…

I rotated the geometry 15 degrees, then back and everything worked… I woudl guess that something happen to cause a very, very small rounding error…

Why then does this code work in SketchUp 2025 in the same model? Has the accuracy been increased in version 2026?

I’m trying to find out if the accuracy has changed.

I also scaled the object up to 1000000X. The edges are now 16000000 mm. And it still doesn’t work. Code: Sketchup.active_model.selection[0].pushpull(-16000000.mm,false) Model attached. Pushpull bug 2.skp (5.4 MB)

Pushpull tool error in SketchUp 2026

Technical Problems SketchUp

DanRathbun October 28, 2025, 5:02pm 29

FYI:

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Pushpull tool error in SketchUp 2026

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