But then when I use other CAD editing software to open it, the proportion is messed up. Yet the dimensions shown are all right, so I am not sure if the final outcome will have the correct proportion. Are there anyway to fix the proportion or is it okay to continue using the file?
Hi, it looks like your drawing was created on a plane that is rotated between the Front and Top planes by 45° from each and it got projected to one of those planes when showing in other software - i guess to the plane which is defined by the X and Y axes.
I am sure rotating the sketch will get to the result you are looking for. Can you please rotate the whole sketch by 45° to get a clear view of it from the Top view?