Elongated Holes in SketchUp

In my book Chapter 9, Step 30, there are instructions for placing elongated holes in the Top Frame for fastening the Top. They're elongated to account for seasonal movement of the Top cross-grain.

Here is one of the elongated holes shown with a Back Edges Style so you can see the hole all the way through the Top Frame.

After making one hole, I ask the reader to copy the hole to the other locations in the Top Frame. Here I am moving a copy of the hole down the red axis.

After placing it, the reader will surprisingly notice that the hole is "covered over" - having a face. So, is there a hole there or not?

Also, you are horrified upon clicking the hole covering, the entire face of the frame piece is selected. You can't get the small face of the hole to select only. My book explains this phenomenon - it is normal SketchUp behavior. As explained in Step 30 - "trace over a small part of the hole outline" and the hole face can be selected and deleted, leaving a hole.

Here is way not to "trace over a small part……". These are extraneous lines and will cause problems in removing that face of the hole.

Rather, make sure you zoom in close and, with the Line Tool, trace over a line segment endpoint to endpoint.

 

Now you'll be able to select the hole face, and delete it.

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