I’ve been working on this issue for hours and I cannot find any answer. I have what I believe to be a fairly simple operation. I have a hollow cylinder (that does have wall thickness) that I need to punch several holes through. I’ve created the cylinder with 96 edges because the intention is for this model to be 3d printed. I have created several small cylinders to do the Boolean operations with. As I proceed through the different subtractions and save the file between each operation, eventually I will get the message that there are some minor errors with the file and asks me if I would like Sketchup to fix it. If I click yes, my model is blown to pieces with faces being deleted.
I’ve attached my file here to test with… Outsleeve Fix2.skp (576.0 KB)
In my model, the total size of it is about 6"x1.5" however I have tried the scaling up method before doing the Boolean cuts and I still get the same problems.
Any help would be greatly appreciated!