Common Issue 1
Z-Axis issue when uploading a drawing into ToolBox
All Drawings Aren't As They Seem!
When you upload a drawing into ToolBox, the following error most commonly results from a Z-axis component that is not zero. The following CAD drawings appear to be normal when viewed from the top, however, when viewed from an isometric perspective, some entities are not on the zero point of the Z-axis:
Viewed from this image, the part appears to be quite a normal part with no noticeable issues.
Viewing the part in isometric shows it has depth even though it is not a solid model.
Another way of telling whether the part has a problem is to look at the geometry of the lines, in the above example you can see that Z is 0.
This is the problem line as you can see, Z is 10 millimetres