I have an issue where I want to draw a circle on the edge of cuboid which is exactly 5mm diameter. I set some guides 2.5mm in so my finished circle will be 5mm diameter. However, when i draw the circle the side of the cuboid gets pulled in changing its size.
You can see in the above pic how the sides of the cuboid has wondered into the circle out of square to the guidelines.
The circle is 90 sectors as I want to 3D print it round.
How can it stop this from happening? I am working with a scale of 0.0mm as I can print to 0.1mm