Create dog bone on inside corner

Could someone show the steps to create a dog bone on an inside corner? I cannot get the Boolean function to cut the inside of the corner. It wants to leave the outside of the circle. Hope that makes sense.

My suggestion here would be to just switch to Inkscape whenever you bump up against some limitation in Carbide Create — and drop an e-mail to along w/ sample files informing them of your difficulty and solution.

We have a bit on Inkscape from a CNC perspective here: