Windows 10: holes, subtraction, and collision

I am making models from old pieces, sometimes I need to subtract material. I am aware that large bits can be sliced off with "Split", and then discarded. However, small details don't seem to be removable by the same method. My inquiry here is: do we create a shape, make it hollow, and then add it to the model? What would we then do about the "extra" sides of said object? Are we out of the frying pan, and into the fire with that methodology?I have made holes, small ones for screws to go through to affix a model to another thing, by taking a sphere, making it quite small, and then making it hol

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subtract

Hi All

How do I subtract an object from a model to create a hole can't seem to find how to substance an 3d item

TIA

Andrew

 

3D Builder - Subtraction Bugs

When I subtract one object from another, to make a hole, or to cut an area off of my model, often the subtraction creates many new triangles that inappropriately join between nearby edges. Usually across the gap i was trying to create. Most of the time
these are not recognized as needing repairs, or are ignored by the repair tool.

When will we be getting a tool to delete triangles like this, and to manually close holes?

 

How to put holes in 3D objects?

to drill holes use add cylinder change size to hole size place were you

want your hole make sure it is long enough to go right through

then in edit click subtract you have a hole